Inovasi Fisika Indonesia最新文献

{"title":"REVIEW: LAPISAN SUPERHIDROFOBIK BERBASIS SILIKA SEBAGAI APLIKASI SELF-CLEANING","authors":"Ariyanti Rasiana Putri, M. Munasir","doi":"10.26740/ifi.v12n2.p66-81","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p66-81","url":null,"abstract":"Teknologi self-cleaning sangat popular di kalangan para peneliti dan telah banyak diterapkan dalam berbagai aplikasi permukaan. Lapisan self-cleaning dengan sifat superhidrofobik banyak dikembangkan dan diteliti lebih lanjut karena kemampuannya dalam melakukan pembersihan yang sangat baik. Kemampuan self-cleaning lapisan superhidrofobik berbasis silika (SiO2) banyak diteliti. SiO2 dianggap dapat meningkatkan kekasaran suatu permukaan karena memiliki energi permukaaannya yang rendah dan menunjukkan sifat hidrofobik, hidrofilik, dan kestabilan termal. Lapisan superhidrofobik berbasis silika telah disintesis melalui berbagai metode fisik dan kimia. Metode sol-gel menjadi utama dengan ciri khas kemudahannya dalam sintesis melalui pencampuran beberapa material dan lebih hemat biaya. Selain itu, metode sol-gel telah banyak digunakan dalam sintesis material berbasis silika. Pada review ini, membahas mengenai fenomena self-cleaning di alam yang menjadi acuan peneliti, karakteristik lapisan superhidrofobik dalam kemampuan self-cleaning, metode sol-gel dan teknik coating dalam pembuatan lapisan superhidrofobik, dan material silika yang dimodifikasi dengan material lain untuk meningkatkan kemampuan self-cleaning. Kata Kunci: Superhidrofobik; Self-cleaning; Silika; Sol-gel Abstract Self-cleaning technology is very popular among researchers and has been widely applied in various surface applications. Self-cleaning coatings with superhydrophobic properties have been developed and further researched because of their ability to perform excellent cleaning. The self-cleaning ability of silica-based superhydrophobic coatings (SiO2) has been extensively studied. SiO2 considered to be able to increase the roughness of a surface because it has a low surface energy and exhibits hydrophobic, hydrophilic, and thermal stability properties. Silica-based superhydrophobic coatings have been synthesized by various physical and chemical methods. The sol-gel method is the main feature of its ease of synthesis through mixing several materials and is more cost-effective. In addition, the sol-gel method has been widely used in the synthesis of silica-based materials. This review discusses the phenomenon of self-cleaning in nature which is the reference for researchers, the characteristics of the superhydrophobic coating in terms of self-cleaning ability, the sol-gel method and coating techniques in the manufacture of superhydrophobic coatings, and silica material modified with other materials to increase self-cleaning ability. Keywords: Superhydrophobicity; Self-cleaning; Silica; Sol-gel","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SINTESIS DAN KARAKTERISASI GRAPHENE OXIDE (GO) DARI BAHAN ALAM TEMPURUNG KELAPA","authors":"Natalia Agus Putri, Z. A. I. Supardi","doi":"10.26740/ifi.v12n2.p47-55","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p47-55","url":null,"abstract":"Pemanfaatan limbah tempurung kelapa di Indonesia masih kurang dan terbatas, bahkan umunya masih dianggap sebagai limbah bahan bakar setiap harinya. Sedangkan limbah tempurung kelapa memiliki daya serap yang tinggi dan luas permukaan yang besar yang dapat dimanfaatkan sebagai sumber alternatif material Graphene Oxide (GO) yang ramah lingkungan serta ketersediaannya dapat diperbarui. Graphene oxide merupakan material dengan konduktivitas yang sangat baik, memiliki kisi hexagonal menyerupai sarang lebah dan terdapat lengkungan karena adanya gugus oksigen dalam bentuk karboksil dan karbonil didalamnya. Proses sintesis graphene oxide dari tempurung kelapa ini menggunakan metode Hummer atau oksidasi secara kimia. Karakterisasi material dilakukan untuk mendapatkan material graphene oxide yang bagus. Hasil SEM menyatakan perbedaan ukuran partikel dan pada tepi partikel terlihat agak tebal yang menunjukkan adanya gugus fungsi oksigen yang diperjelas dengan hasil EDX dimana unsur karbon sebanyak 86,8 wt% dan unsur oksigen sebanyak 12,8 wt%. Perbandingan hasil dari karakterisasi FTIR dari sampel GO hasil sintesis dengan referensi menjelaskan adanya berbagai gugus fungsi yang mengandung oksigen dalam sampel GO. Kemudian pada pengukuran spektroskopi raman diperoleh rasio  sebesar 0,84 yang menyatakan bahwa sampel hasil sintesis merupakan sampel GO. Meskipun pada karakterisasi XRD didapatkan pergeseran pola difraksi material GO yang khas pada pembentukan rGO, hal ini dapat disebabkan dari prekusor yang digunakan dalam sintesis merupakan bahan amorf dan adanya perubahan derajat oksidasi selama proses sintesis. Kata Kunci: Graphene Oxide, Tempurung Kelapa, Metode Hummer Abstract Utilization of coconut shell waste in Indonesia is still lacking and limited, in fact it is generally still considered as fuel waste every day. Meanwhile, coconut shell waste has a high absorption capacity and a large surface area which can be used as an alternative source of Graphene Oxide (GO) material which is environmentally friendly and its availability can be renewed. Graphene oxide is a material with very good conductivity, has a hexagonal lattice resembling a honeycomb and has a bend due to the presence of oxygen groups in the form of carboxyl and carbonyl in it. The process of synthesizing graphene oxide from coconut shells uses the Hummer method or chemical oxidation. Material characterization was carried out to obtain a good graphene oxide material. The SEM results revealed differences in particle size and on the edges of the particles it looked rather thick indicating the presence of oxygen functional groups which was clarified by the EDX results where the carbon element was 86.8 wt% and the oxygen element was 12.8 wt%. Comparison of the results of the FTIR characterization of the synthesized GO samples with references explaining the presence of various oxygen-containing functional groups in the GO samples. Then on Raman spectroscopy measurements, the  ratio was obtained a","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A REVIEW : MODIFIKASI DOPING LiFePO4 SEBAGAI KATODA BATERAI Li-ION","authors":"Hana Nur Hamida, M. Munasir","doi":"10.26740/ifi.v12n2.p56-65","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p56-65","url":null,"abstract":"Dalam situasi krisis energi dan perkembangan pesat peralatan elektronik saat ini, baterai lithium ion telah menjadi fokus penelitian sebagai perangkat penyimpanan energi yang memiliki kepadatan energi tinggi, aman, dan terjangkau. Di antara berbagai jenis baterai lithium ion, LiFePO4 telah menarik perhatian dalam bidang baterai dengan kapasitas besar. Keunggulan LiFePO4 antara lain stabilitas yang baik, biaya yang rendah, serta ramah lingkungan. Namun, karena koefisien difusi ion lithium dan konduktivitasnya yang rendah, hal tersebut membatasi kinerja baterai lithium ion. Dalam artikel ini di review pengaruh dari doping logam dan non logam terhadap performa elektrokimia LiFePO4. Setiap ion yang di doping memiliki efek yang berbeda pada bahan katoda LiFePO4. Dari banyak penelitian menjelaskan bahwa jumlah doping yang tepat dapat meningkatkan kinerja bahan katoda LiFePO4 hingga batas tertentu. Setiap ion doping memiliki keunggulan masing-masing sehingga dapat membuktikan bahwa modifikasi doping telah berhasil membantu menstabilkan struktur kristal LiFePO4, dan meningkatkan stabilitas siklusnya serta meningkatkan laju difusi ion lithium dan meningkatkan konduktivitas antarpartikel dalam LiFePO4. Kata Kunci: LiFePO4, Doping, Baterai Lithium Ion Abstract In the current situation of energy crisis and rapid development of electronic equipment, lithium-ion batteries have become the focus of research as energy storage devices that have high energy density, are safe, and affordable. Among the various types of lithium-ion batteries, LiFePO4 has attracted attention in the field of large capacity batteries. The advantages of LiFePO4 include good stability, low cost, and environmental friendliness. However, due to its low lithium-ion diffusion coefficient and conductivity, it limits the performance of lithium-ion batteries. This article reviews the effect of metal and non-metal doping on the electrochemical performance of LiFePO4. Each doped ion has a different effect on the LiFePO4 cathode material. Many studies explain that the right amount of doping can improve the performance of LiFePO4 cathode material to a certain extent. Each doping ion has its own advantages so that it can prove that doping modification has successfully helped stabilize the crystal structure of LiFePO4 and improve its cycle stability as well as increase the diffusion rate of lithium ions and increase the interparticle conductivity in LiFePO4.  Keywords: LiFePO4, Doping, Lithium-Ion Battery","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of magnetic Fe3O4 nanoparticles (MNPs) using plant extract and Biomedicine Applications: Targeted Anticancer Drug Delivery System","authors":"Enriko Hendrian, M. Munasir","doi":"10.26740/ifi.v12n2.p30-46","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p30-46","url":null,"abstract":"Sekarang, nanosains memberikan dasar ilmiah dan pemahaman tentang sifat dan perilaku materi pada skala nanometer (ukuran » 1-100 nm), adapun nanoteknologi adalah terapan nanosain untuk merancang dan menciptakan struktur serta perangkat baru dengan ukuran nanometer. Bagian penting dari hal tersebut adalah bagaimana membuat material dengan ukuran skala nano (e.i: nanopartikel), berbagai metode sudah dikembangkan baik secara top-down maupun bottom-up. Metode yang paling sederhana adalah secara bottom-up, melakukan fabrikasi dengan menyusun atom demi atom. Untuk metode ini yang paling ramah lingkungan adalah dengan metode green synthesis, dengan memanfaatkan ekstraksi tanaman. Di Indonesia memiliki keunggulan dengan keragaman aneka tanaman yang sangat banyak. Pada studi ini akan ditunjukan bahwa untuk membuat material magnetic, seperti magnetic nanopartikel Fe3O4 (MNPs) yang dapat disintesis dengan mudah dengan menggunakan aneka ektraski tanaman seperti: biji jinten (Syzygium cumini seed), kulit delima (Punica Granatum rind), bunga api-api putih (Avicennia marina flower), akar Chromolaena Odorata, daun Thunbergia Grandiflora, buah Couroupita Guianensis Aubl., dan daun Moringa Oleifera. Pada bidang biomedis khususnya untuk deteksi penyakit, pengiriman obat yang terkontrol. Nanopartikel pengiriman obat harus terutama dapat terdegradasi dan kompatibel dengan organisme. Hasil studi menunjukan MNPs memiliki potensi untuk mengubah secara total metode diagnostik dan terapi klinis, dan ini sangat menarik perhatian. Dan yang terbaru antara lain transfeksi yang ditingkatkan secara magnetik, terapi gen yang dibantu secara magnetik, hipertermia yang diinduksi secara magnetik, dan rekayasa jaringan berdasarkan gaya magnetic.  Kata Kunci: Magnetik Nanopartikel (Fe3O4), Green synthesis, DDS, teranostik kanker, terapi genetik  Abstract Today, Nanoscience provides the scientific basis and understanding of the properties and behavior of matter at the nanometer scale (size » 1-100 nm). At the same time, nanotechnology is the application of Nanoscience to design and create new structures and devices with nanometer size. An essential part of this is making materials with nanoscale sizes (e.g., nanoparticles); various methods have been developed both top-down and bottom-up. The simplest method is bottom-up, fabricating by assembling atom by atom. For this method, the most environmentally friendly is the green synthesis method, by utilizing plant extraction. Indonesia has an advantage with a vast diversity of various plants. This study will show that to make magnetic materials, such as magnetic nanoparticles Fe3O4 (MNPs), which can be synthesized easily using various plant extracts such as cumin seeds (Syzygium cumin seed), pomegranate peel (Punica Granatum rind), sparks. white (Avicennia marina flower), Chromolaena odorata root, Thunbergia Grandiflora leaf, Couroupita guianensis Aubl. fruit, and Moringa oleifera leaf. In the biomedical field, especially for disease det","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139363064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Karakteristik Elektrokimia Lapisan Tipis PANi Dengan Variasi Scan Rate Elektrodeposisi","authors":"Frisellya Dirgantari, Nugrahani Primary Putri","doi":"10.26740/ifi.v12n2.p103-108","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p103-108","url":null,"abstract":"Lapisan tipis Polianilin (PANi) telah berhasil dideposisi secara elektrokimia pada elektroda ITO. Proses elektrokimia dilakukan menggunakan variasi scan rate sebesar 10 mV/s, 25 mV/s, 50 mV/s, 75 mV/s, dan 125 mV/s. Variasi scan rate berpengaruh pada warna dan ketebalan lapisan PANi pada permukaan ITO. Semakin besar scan rate menyebabkan warna lapisan PANi semakin pudar. Hasil karakterisasi FTIR telah mengindentifikasi keberadaan fasa emeraldine salt (ES) pada lapisan PANi yang terdeposisi. Sedangkan dari karakterisasi CV memperlihatkan bahwa dengan meningkatnya scan rate akan memperlebar kurva CV lapisan PANi. Kata Kunci: Polianilin, elektrodeposisi, scan rate, ITO   Abstract Polyaniline (PANi) thin films have been successfully deposited electrochemically on ITO electrode. The electrochemical process was carried out using variations scan rate of 10 mV/s, 25 mV/s, 50 mV/s, 75 mV/s, and 125 mV/s. Scan rate variations affect the color and thickness of the PANi layer on the ITO surface. The greater scan rate causes the color of the PANi layer to fade. FTIR characterization results have identified the presence of phases emeraldine salt (ES) on the deposited PANi layer. Meanwhile, CV characterization shows that increasing scan rate will widen the CV curve of the PANi layer.  Keywords: Polyaniline, electrodeposition, scan rate, ITO","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139363377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"REVIEW : PERFORMA MEMBRAN KOMPOSIT MENGGUNAKAN ALIRAN DEAD-END FILTRATION","authors":"Anis As'adah, M. Munasir","doi":"10.26740/ifi.v12n2.p92-102","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p92-102","url":null,"abstract":"Teknologi berbasis membran merupakan salah satu teknologi pengolahan air yang paling banyak diminati saat ini karena memiliki beberapa manfaat seperti konsumsi energi yang begitu relatif rendah dan operasi yang sederhana. Membran Graphene Oxide (GO) termasuk membran yang banyak diminati karena memiliki porositas GO yang tinggi serta ukuran pori nano yang baik. Sehingga dilakukan review artikel tentang performa membran komposit menggunakan aliran dead-end filtration. Bahan-bahan lain yang dapat dikompositkan dengan membran GO seperti Ti3C2Tx, Ni, Isophorone Diisocyanate (IPDI), TiO2, Ag, PAM, Attapulgite (ATP) dan SiO2 yang memiliki potensi untuk filtrasi yang berbeda-bedaseperti untuk filtrasi pada pemisahan molekul dan pengolahan air, filtrasi untuk zat pewarna dan lain-lain. Dalam proses filtrasi membran untuk aliran dead-end filtration merupakan aliran yang secara keseluruhannya akan melewati suatu membran serta partikel akan tertahan pada membran tersebut. Pada review artikel ini didapatkan membran komposit GO/SiO2 yang memiliki performa baik dilihat dari nilai fluks tertinggi sebesar 229.15 L/m2.h.bar di antara membran komposit yang lain dan berpotensi untuk filtrasi pencemaran air. Kata Kunci: Membran Komposit, Graphene Oxide, Dead-End Filtration Abstract Membrane-based technology is one of the most popular water treatment technologies today because it has several benefits such as relatively low energy consumption and simple operation. Graphene Oxide (GO) membranes are among the membranes that are in great demand because they have high GO porosity and good nano pore sizes. Therefore, a review of articles on the performance of composite membranes using dead-end filtration was carried out. Other materials that can be composited with GO membranes such as Ti3C2Tx, Ni, Isophorone Diisocyanate (IPDI), TiO2, Ag, PAM, Attapulgite (ATP) and SiO2 which have different potential for filtration such as for filtration in molecular separation and water treatment , filtration for dyes and others. In the membrane filtration process for dead-end filtration flow is a flow that as a whole will pass through a membrane and the particles will be stuck on the membrane. In this review article, it was found that the GO/SiO2 composite membrane had good performance in terms of the highest flux value of 229.15 L/m2.h.bar among other composite membranes and has the potential to filter water pollution. Keywords: Composite Membrane, Graphene Oxide, Dead-End Filtration","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of TiO2 nanoparticles: dye-sensitized solar cells (DSSC) Applications : a review","authors":"Mochammad Anang Mustaghfiri, Munasir MUNASIR","doi":"10.26740/ifi.v12n2.p10-29","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p10-29","url":null,"abstract":"Abstrak
 Peneltian ini bertujuan untuk mempelajaran teknik green synthesis nanopartikel, terkhusus untuk nanopartikel TiO2. Berbagai jenis tenaman bisa digunakan sebagai sumber senyawa ekstraksi (chaping agent, dan deionisasi logam Ti) pada proses sintesis nanopartikel TiO2; diantaranya: daun krokot (Portulaca Oleracea L.), Pisonia grandis (Leechai kottai keerai), jagung (zea mays), Kesumba Keling (bixa orellana), Biji kesumba (Bixa orellana seed), Jeruk (Citrus Limetta), Klabet (Trigonella foenum-graecum), Daun Kelor (Moringa Oleifera Leaf), dan Turi (Sesbania grandiflora). Nanopartikel TiO2 dapat diaplikasi sebagai dye-sensitized solar cells (DSSC). Ukuran nanopartikel TiO2 yang disintesis dengan precursor TPID dan memanfaatkan berbagai ektraksi tanaman telah menghasilkan ukuran 20-100 nm (spherical-like), dan ukuran kristal 9-13 nm (tetragonal crystalline). Sifat dasar dari nanopartikel TiO2 dijelaskna dengan baik (struktur krisal, gugus fungsi dan ukuran artikel), selanjutkan sifat, struktur, dan mekanisme transportasi muatan DSSC- juga dijelaskan dengan rinci. Bagian yang penting pada striuktur DSSC berbasis TiO2 nanopartikel ini adalah fotoanoda, katalis dan elektrolit. DSSC dengan fotoanoda TiO2 nanopartikel memiliki beberapa keunggulan, antara lain: efisiensi tinggi, biaya rendah, kestabilan tinggi, kinerja di bawah cahaya rendah, dan fleksibilitas desain. Hingga pengetahuan saya saat ini, efisiensi DSSC dengan bahan TiO2 telah mencapai lebih dari 14% dalam kondisi laboratorium. Namun, penting untuk dicatat bahwa efisiensi yang dapat diperoleh dalam praktik nyata dapat bervariasi dan masih ada tantangan dalam meningkatkan efisiensi tersebut. Pengembangan dan penelitian terus dilakukan untuk meningkatkan efisiensi DSSC dengan bahan TiO2 serta memperbaiki stabilitas dan biaya produksinya. Demikian halnya untuk DSSC dengan material TiO2-GO; memiliki kinerja tinggi dan sensitivitas yang baik, tetapi DSSC dengan TiO2 nanopartikel lebih teruji dan stabil dalam jangka panjang.
 Kata Kunci: Green synthesis, Dye-Sensitize solar cells, fotoanoda, Nanopartikel TiO2
 Abstract
 This research aims to study the technique of green synthesis of nanoparticles, especially for TiO2 nanoparticles. Various types of plants can be used as a source of extraction compounds (camping agents, and deionization of Ti metal) in the synthesis of TiO2 nanoparticles, including purslane leaves (Portulaca Oleracea L.), Pisonia grandis (Leechai kottai keerai), corn (Zea mays), Kesumba Keling (bixa orellana), Kesumba seeds (Bixa orellana seed), Oranges (Citrus Limetta), Clabet (Trigonella foenum -graecum), Moringa Leaves (Moringa Oleifera L.), and Turi (Sesbania grandiflora). TiO2 nanoparticles can be applied as dye-sensitized solar cells (DSSC). The size of TiO2 nanoparticles synthesized with TPID precursors and utilizing various plant extractions has resulted in sizes of 20-100 nm (spherical-like) and crystalline sizes of 9-13 nm (tetragonal crystalline).","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135421097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Waktu Tahan Kalsinasi terhadap Komposisi Fasa dan Ukuran Kristalit Serbuk Mg(Ti0,99Sn0,01)O3 Hasil Sintesis dengan Metode Pencampuran Larutan","authors":"Syadza Aisyah Hermadianti, Frida Ulfah Ermawati","doi":"10.26740/ifi.v12n2.p1-9","DOIUrl":"https://doi.org/10.26740/ifi.v12n2.p1-9","url":null,"abstract":"Abstrak
 Pada penelitian ini, serbuk Mg(Ti0,99Sn0,01)O3 (disingkat MTS001) disintesis menggunakan metode pencampuran larutan yang dikalsinasi pada suhu 800 °C. Sintesis serbuk MTS001 dilakukan dengan bahan awal berupa serbuk logam Mg, Ti, dan Sn (Merck) dan HCl 12 M (37 %). Serbuk MTS001 hasil sintesis kemudian dikalsinasi selama 2, 4, dan 6 jam untuk menganalisis pengaruh waktu tahan kalsinasi terhadap %molar, %berat, densitas atom, parameter kisi, volume sel satuan, dan ukuran kristalit. Data struktural menunjukkan bahwa fasa utama adalah MgTiO3 (86,61-92,10 %berat) dan fasa impurity TiO2, diikuti dengan ekstra fasa MgO khususnya pada waktu tahan 4 jam. Data volume sel satuan dan parameter kisi mengalami kenaikan dari waktu tahan 2 jam menuju 4 jam, kemudian menurun pada 6 jam. Kenaikan kedua data tersebut dipengaruhi oleh terbentuknya fasa impurities yang lebih banyak dibandingkan waktu tahan yang lain, yaitu fasa TiO2 dan MgO, sehingga mempengaruhi transformasi pembentukan fasa MgTiO3. Perubahan data tersebut membuktikan bahwa telah terbentuk larutan padat substitusi MTS001. Seiring dengan naiknya waktu tahan kalsinasi 2-6 jam, nilai densitas atom dan ukuran kristalit mengalami kenaikan, sehingga menyebabkan terjadinya pelebaran puncak.
 Kata Kunci: serbuk Mg(Ti0,99Sn0,01)O3, komposisi fasa, ukuran kristalit, densitas atom, waktu tahan kalsinasi
 Abstract
 In this study, Mg(Ti0.99Sn0.01)O3 powders (abbreviated as MTS001) were synthesized using a liquid mixing method calcined at 800 °C. The synthesis of MTS001 powders were carried out with raw materials in the form of Mg, Ti, and Sn metal powders (Merck) and 12 M HCl (37 %). The synthesized MTS001 powders were then calcined for 2, 4, and 6 hours to analyze the effect of calcination holding time on %molar, %weight, atomic density, lattice parameters, unit cell volume, and crystallite size. The structural data showed that the main phase was MgTiO3 (86.61-92.10 wt%) and TiO2 impurity phase, followed by extra MgO phase especially at 4 h holding time. Unit cell volume data and lattice parameters increased from 2 hours to 4 hours, then decreased at 6 hours. The increase of both data is influenced by the formation of of more impurities compared to other holding times, namely the TiO2 and MgO phases, thus affecting the transformation of the formation of the MgTiO3. The change in data proves that the MTS001 substitution solid solution has been formed. Along with the increase in calcination holding time 2-6 hours, the value of atomic density and crystallite size has increased, thus causing peak broadening.
 Keywords: Mg(Ti0.99Sn0.01)O3 powders, phase composition, crystallite size, atomic density, holding time calcination","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135860129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KARAKTERISTIK KOMPOSIT PANi/ZnO SEBAGAI BAHAN DASAR SENSOR GAS","authors":"Lulu Nur Maulida, Nugrahani Primary Putri","doi":"10.26740/ifi.v11n2.p38-43","DOIUrl":"https://doi.org/10.26740/ifi.v11n2.p38-43","url":null,"abstract":"Abstrak \u0000PANi merupakan salah satu polimer konduktif yang dapat dijadikan sebagai bahan dasar sensor gas. Pada pengaplikasiannya sebagai bahan dasar sensor gas, PANi memiliki kelemahan terkait tingkat sensitivitasnya sehingga perlu dikompositkan dengan bahan oksida logam. Salah satu oksida logam yang dapat digunakan untuk mendeteksi gas adalah ZnO. Pada penelitian ini dilakukan komposit PANi/ZnO menggunakan metode polimerisasi in-situ sebagai bahan dasar sensor gas yang selanjutnya dikarakterisasi menggunakan Fourier Transform InfraRed (FTIR), X-Ray Diffraction (XRD), dan Scanning Electron Microscope (SEM). Hasil pengujian menunjukkan komposit PANi/ZnO berhasil disintesis menggunakan metode polimerisasi in-situ ditandai dengan adanya puncak serapan jenis ikatan milik ZnO pada 674 cm-1 yang menandakan keberadaan ZnO pada komposit PANi/ZnO, selanjutnya intensitas komposit menjadi lebih tinggi dibanding PANi pada 2θ = 25.7˚ yang menunjukkan adanya interaksi ZnO dan PANi dengan pembentukan ikatan hidrogen antara H-N dan oksigen dari ZnO. Komposit PANi/ZnO memiliki ukuran partikel 226 nm dengan bentuk ovoidal-shaped dan struktur berpori yang menandakan dapat digunakan sebagai bahan dasar sensor gas. \u0000Kata Kunci: komposit, oksida logam, polimer konduktif, sensor gas \u0000  \u0000Abstract \u0000PANi is a conductive polymer that can be used as the base material for gas sensors. In its application as a gas sensor base material, PANi has a weakness related to its sensitivity level, so it needs to be composited with metal oxide materials. One of the metal oxides that can be used to detect gas is ZnO. In this study, PANi/ZnO composites were used using the in-situ polymerization method as the base material for gas sensors which were further characterized using Fourier Transform InfraRed (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscope (SEM). The test results show that the PANi/ZnO composite was successfully synthesized using the in-situ polymerization method characterized by the FTIR absorption peak at 674 cm-1 with the ZnO bond type indicating the presence of ZnO in the PANi/ZnO composite, then the composite intensity became higher than PANi at 2θ = 25.7˚ which indicates the interaction of ZnO and PANi with the formation of hydrogen bonds between H-N and oxygen from ZnO. The PANi/ZnO composite has a particle size of 226 nm with an ovoidal-shaped shape and a porous structure which indicates that it can be used as a gas sensor base material. \u0000Keywords: composite, metal oxide, conductive polymer, gas sensors","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47790689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RANCANG BANGUN PERANGKAP NYAMUK OTOMATIS MENGGUNAKAN SENSOR SUHU DAN KELEMBABAN DHT11 BERBASIS ARDUINO UNO","authors":"Dzulkiflih Dzulkiflih, F. Khansa","doi":"10.26740/ifi.v11n02.p28-37","DOIUrl":"https://doi.org/10.26740/ifi.v11n02.p28-37","url":null,"abstract":"Abstrak \u0000Upaya pencegahan penyakit yang disebabkan oleh nyamuk Aedes aegypty dan Aedes albopictus telah dilakukan melalui berbagai cara seperti 3M, penggunaan obat anti nyamuk (bakar, semprot, oles), insektisida, maupun alat pembasmi elektrik. Akan tetapi hal tersebut masih memiliki beberapa efek samping diantaranya ialah penyakit kulit pada penggunaan obat anti nyamuk yang terus menerus, gangguan pernapasan pada penggunaan insektisida, serta gangguan bunyi bising dari alat pembasmi elektrik. Dalam hal ini peneliti berfokus pada pembuatan rancang bangun alat perangkap nyamuk yang tidak mengganggu pernapasan manusia dan tanpa menghasilkan bunyi bising. Penelitian ini menggunakan pemanfaatan sensor suhu DHT11, LED Strip, dan kipas yang semuanya berbasis pada Arduino uno dan nantinya akan menjadi sebuah alat perangkap nyamuk otomatis. Metode penelitian menggunakan ekperimental dengan mengontrol variabel uji coba alat di 2 ruang yang berbeda ukuran dan pengaturan rentang suhu pada alat perangkap nyamuk. Pengambilan data dilakukan pada bulan Februari 2022 di Sidoarjo dengan suhu ruang 28-31 derajat celcius. Dengan pemanfaatan sensor suhu DHT 11, diperoleh hasil tangkap nyamuk terbanyak saat suhu tinggi. LED Strip dan posisi kipas terbalik digunakan peneliti agar dapat menarik perhatian nyamuk dan yang terperangkap bisa sekaligus terbunuh akibat terkena putaran baling-baling kipas. Berdasarkan hasil yang diperoleh, keseluruhan pemanfaatan sensor suhu dan kelembaban DHT11 yang bertujuan sebagai alat perangkap nyamuk otomatis ini dapat bekerja dengan baik diantaranya; mampu menonaktifkan keluaran secara otomatis, tidak menimbulkan bunyi bisisng, dan efisiensi biaya produksi dibandingkan alat perangkap nyamuk yang lain. \u0000Kata Kunci: Nyamuk, Suhu, Mikrokontroller. \u0000  \u0000Abstract \u0000Efforts to prevent diseases caused by Aedes aegypty and Aedes albopictus mosquitoes have been carried out through various methods such as 3M, the use of mosquito repellents (burning, spraying, smearing), insecticides, and electric exterminators. However, this still has some side effects, including skin disease from continuous use of mosquito repellent, respiratory problems from using insecticides, and noise from electric exterminators. In this case, the researcher focuses on designing a mosquito trap that does not interfere with human breathing and does not produce noise. This research uses the use of the DHT11 temperature sensor, LED Strip, and fan which are all based on Arduino uno and will later become an automatic mosquito trap. The research method used experimentally by controlling the instrument’s test variables in 2 rooms with different sizes and temperature settings in the trap. Data collection was carried out in February 2022 in Sidoarjo with a room temperature of 28-31 degrees Celcius. By using the DHT 11 temperature sensor, the highest number of mosquito catches was obtained when the temperature was high. The LED Strip and an inverted fan position are used by researchers ","PeriodicalId":56254,"journal":{"name":"Inovasi Fisika Indonesia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41854870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}