JKPK (Jurnal Kimia dan Pendidikan Kimia)最新文献_第2页

Photocatalytic Degradation of Methylene Blue using Fe2O3-TiO2/Kaolinite under Visible Light Illumination 可见光下Fe2O3-TiO2/高岭石光催化降解亚甲基蓝

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-12-08 DOI: 10.20961/jkpk.v7i3.66567

A. B. Aritonang, Hanopa Selpiana, M. A. Wibowo, W. Warsidah, Adhitiawarman Adhitiawarman

{"title":"Photocatalytic Degradation of Methylene Blue using Fe2O3-TiO2/Kaolinite under Visible Light Illumination","authors":"A. B. Aritonang, Hanopa Selpiana, M. A. Wibowo, W. Warsidah, Adhitiawarman Adhitiawarman","doi":"10.20961/jkpk.v7i3.66567","DOIUrl":"https://doi.org/10.20961/jkpk.v7i3.66567","url":null,"abstract":"Combining TiO2 and a semiconductor with a smaller band gap, such as Fe2O3, to form a heterojunction composite can increase its photocatalytic activity. In this work, the Fe2O3-TiO2/kaolinite composites were successfully synthesized by ultrasonic-assisted coprecipitation using titanium-tetraisopropoxide (TTIP) dan Fe (NO3)3.9H2O as precursors. Using kaolinite as a matrix also increases the photocatalyst’s surface area. The obtained Fe2O3-TiO2/kaolinite composites were characterized. The crystal phase was characterized using X-Ray Diffraction and resulted in anatase with a crystallite size average of 9,7 nm. Fourier Transform Infrared Spectrophotometer (FTIR) shows the peak at a wavenumber 574-1210 cm−1 ascribed TiO2 and Fe2O3 incorporated into kaolinite. The Optical properties show the absorption edge of Fe2O3-TiO2/kaolinite is redshift toward the visible light region. The result showed that the photocatalytic activity of Fe2O3-TiO2/kaolinite composites with heterostructure was more active than the corresponding Fe2O3 or pure TiO2 in the degradation of methylene blue under visible light illumination, which can degrade 83% for 180 minutes. Fe2O3 and kaolinite cause its synergistic effect as supporting materials. Furthermore, it indicates that the recombination of photo hole and photoelectron charge pair can be minimized. The Fe2O3-TiO2/kaolinite composite is a promising photocatalyst to degrade organic pollutants for wastewater treatment.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130324597","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}

引用次数: 0

Synthesis of PMCA (P-Methoxy Cinnamic Acid) using Perkin Reaction and Its Activity as Photo Protective and Antifungal Agent Perkin反应合成对甲氧基肉桂酸及其光防护抗真菌活性

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.61294

Y. Purwaningsih, E. Indriyanti, A. F. Masduqi

{"title":"Synthesis of PMCA (P-Methoxy Cinnamic Acid) using Perkin Reaction and Its Activity as Photo Protective and Antifungal Agent","authors":"Y. Purwaningsih, E. Indriyanti, A. F. Masduqi","doi":"10.20961/jkpk.v7i2.61294","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.61294","url":null,"abstract":"This study aimed to synthesize p-methoxy cinnamic acid through the Perkin reaction and to determine its activity as a photoprotective and antifungal agent against Candida albicans. The PMCA compound was synthesized by reacting p-methoxy benzaldehyde with acetic anhydride using a sodium acetate catalyst in a sonicator at 50oC for 60 minutes. The synthesized was a white precipitate with a % yield of 2.09% and a melting point of 172-175oC. ATR-FTIR identified this compound with several functional groups, C=O, OH carboxylic acid, para-substituted benzene, and C=C. Analysis by GC-MS showed a single peak at a retention time of 11.710 minutes with m/z 178. Characterization of this compound by 1H-NMR spectrometry showed several chemical shifts showing the presence of OH groups of carboxylic acids, C=C groups, aromatic benzene groups, and methoxy. The results of this characterization indicated that the synthesis product was PMCA. The antioxidant activity of PMCA using the DPPH radical gave IC50 at a concentration of 352.6138 ppm. In vitro sunscreen activity against PMCA compounds provided high protection at a concentration of 30 ppm with SPF 32,505. The antifungal activity against Candida albicans showed inhibition zones of 0.257cm± 0.044, 1.397cm± 0.093, and 1.533cm± 0.111, respectively at concentrations of 5%, 10%, and 15%. The PMCA compounds can be synthesized through the Perkin reaction assisted by ultrasonic waves and can potentially be photoprotective and antifungal agents.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125246201","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}

引用次数: 0

Synergy of Carbon Nanofiber Innovation from Zinc Oxide Modified Sugar Palm Fiber as Advanced Materials for Arsenic Heavy Metal Waste Remediation 氧化锌改性糖棕榈纤维纳米碳纤维在砷重金属废弃物修复中的协同作用

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.55969

E. Nugrahini, L. Mahardiani, Ida Setiarini, Wieke Helma Anjelina

{"title":"Synergy of Carbon Nanofiber Innovation from Zinc Oxide Modified Sugar Palm Fiber as Advanced Materials for Arsenic Heavy Metal Waste Remediation","authors":"E. Nugrahini, L. Mahardiani, Ida Setiarini, Wieke Helma Anjelina","doi":"10.20961/jkpk.v7i2.55969","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.55969","url":null,"abstract":"Heavy metal wastes cause water pollution. One of them is very toxic arsenic heavy metal waste; thus, treating them before they are released freely into the waters is necessary. In this case, the manufacture of carbon nanofibers (CNF) from sugar palm fiber waste is an innovation that can produce adsorbents to remediate heavy metals, thereby increasing the use value of sugar palm fiber waste. Carbon nanofiber from palm fiber (Arenga pinnata) was modified with ZnO metal, with varying concentrations of 0.1%, 1%, and 10%, in 1 gram of carbon nanofiber. Carbon nanofibers were made by carbonizing sugar palm fibers at 300oC for two hours. Furthermore, wet impregnation was carried out with Zn(CH3COO)2.2H2O and ended with calcination at 250oC for an hour, resulting in black nanofiber powder. This research was conducted to determine the effect of ZnO concentration on the characteristics of the carbon nanofiber produced and its effectiveness in remediating heavy metal arsenic. The ZnO/carbon nanofiber adsorbent material was then characterized using FTIR, XRD, and SEM analyses. Determination of the absorption of ZnO/carbon nanofibers on heavy metal arsenic was also assessed employing AAS analysis.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114357690","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}

引用次数: 0

Study of BOD, COD and TSS Removal in Batik Industry Wastewater using Electrocoagulation Method 电絮凝法去除蜡染工业废水中BOD、COD和TSS的研究

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.59977

E. B. Agustina, Abdul Hakim Prima Yuniarto

引用次数: 0

Biosynthesis of ZnO Nanoparticles using Lime Leaf Extract (Citrus auraantifolia) for Identification of Latent Fingerprints 酸橙叶提取物生物合成氧化锌纳米颗粒鉴别潜在指纹图谱

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.62090

Sri Adelila Sari, Dinda Hawari

{"title":"Biosynthesis of ZnO Nanoparticles using Lime Leaf Extract (Citrus auraantifolia) for Identification of Latent Fingerprints","authors":"Sri Adelila Sari, Dinda Hawari","doi":"10.20961/jkpk.v7i2.62090","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.62090","url":null,"abstract":"Fingerprints are an identification tool in forensic science because of their unique properties. Unfortunately, some of the chemicals used in fingerprint powders are toxic and pose a potential health hazard. This study was conducted to analyze the ability of ZnO nanoparticles to identify latent fingerprints. ZnO nanopowder was synthesized with lime leaf extract using the green synthesis method with double-distilled water solvent and characterized by FT-IR at a wavenumber of 4000-400 cm-1 and SEM-EDX analysis to provide information about the morphology and to detect the elemental composition nanoparticles. The average particle diameter through SEM was around 173.4 nm and formed a spherical with a rough surface with beige color. Identification of latent fingerprints using the powder dusting method on various porous surfaces (craft paper and greaseproof paper) and non-porous surfaces (glass preparations, aluminium foil, and compact disk) shows visualization with the characteristics of the ridges that look good and clear. The study showed the highest frequency of loops (47%), followed by double loops (20%), plain whorls (30%), and central pocket whorls pattern (3%) from 30 fingerprint samples consisting of 14 men and 16 women. Development identification fingerprints using TiO2 show visualization more clearly because color contrast from bright white color and detail ridges is shown better with ZnO nanopowder.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129049235","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}

引用次数: 0

Effectiveness of The Guided Inquiry-Based Flipped Classroom Learning System on Buffer Solution Materials on Students’ Learning Outcomes 引导式探究型翻转课堂学习系统对缓冲解决方案材料对学生学习成果的影响

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.63618

Megi Hartandi, M. Mawardi

引用次数: 2

Preparation and Characterization of White Mineral Trioxide Aggregate (WMTA) using Silica from Rice Husk Ash 稻壳灰二氧化硅制备白色矿物三氧化物骨料及其性能研究

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.57429

Leny Yuliatun, N. Nuryono, Y. Kamiya, R. Dharmastiti

{"title":"Preparation and Characterization of White Mineral Trioxide Aggregate (WMTA) using Silica from Rice Husk Ash","authors":"Leny Yuliatun, N. Nuryono, Y. Kamiya, R. Dharmastiti","doi":"10.20961/jkpk.v7i2.57429","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.57429","url":null,"abstract":"The preparation of white mineral trioxide aggregate (WMTA) was carried out using a solid technique using silica (SiO2) from rice husk ash (RHA). The process included extraction of SiO2 from RHA, the effect of SiO2 composition on material characterization and material compressive strength. Silica was extracted from RHA using NaOH and washed with distilled water until it was sodium-free. WMTA was prepared by mixing extracted SiO2, Bi2O3 commercial (18.0%), CaO commercial and Al2O3 commercial (2.0%), and the mixture was heated at various temperatures (900, 1000, 1100 oC). MTA was made from two variation silica sources: RHA and extracted silica, and each source varied at 15, 20, and 25% by weight, while the CaO content was adjusted. Characterization was carried out by FT-IR spectrophotometry, XRD and UTM for compressive strength measurement conducted after cementation for a day. The RHA extraction results were obtained from sodium-free SiO2. The peak showed the success of WMTA preparation at wave number 910 cm-1 in FTIR spectra, indicating the presence of C-S-H and C3S, C2S, and C3A bonds both before and after thermal treatment in XRD data. The highest compressive strength test after cementation for one day (3.21±0.13MPa) was given by WMTA using RHA, heating at 900 oC, and the percentage of CaO and SiO2 were 60% and 20%, respectively.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115203320","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}

引用次数: 0

Metal Ion Complex Compound Fe(III) with Pyrazoline Derivative Ligand as Cd(II) and Zn(II) Heavy Metal Ion Sensor Based on Fluorescence 金属离子配合物Fe(III)与吡唑啉衍生物配体作为Cd(II)和Zn(II)重金属离子荧光传感器

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.55419

Y. Syahputri, A. Iryani, L. J. Kusumawardani, Shinta Safitri

{"title":"Metal Ion Complex Compound Fe(III) with Pyrazoline Derivative Ligand as Cd(II) and Zn(II) Heavy Metal Ion Sensor Based on Fluorescence","authors":"Y. Syahputri, A. Iryani, L. J. Kusumawardani, Shinta Safitri","doi":"10.20961/jkpk.v7i2.55419","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.55419","url":null,"abstract":"The purpose of this research is to synthesize the complex compound of ion Fe3+ with para-di-2-(1-phenyl-3-pyridyl-4,5-dihydro-1H-pyrazole-5-yl)benzene ligand and its potentials as the sensor of Cd2+ and Zn2+ heavy metal ions based on fluorescence. Complex compounds are characterized with a Fourier-Transform Infrared (FTIR) Spectrophotometer, Ultraviolet-Visible (UV-Vis) Spectrophotometer and Spectrofluorometer. Then, a complex compound fluorosensor study is conducted by adding Cd2+ and Zn2+ heavy metal ions using a UV-Vis Spectrophotometer and Spectrofluorometer. The results show that the synthesis of the complex compound formed by reacting Fe metal and pyrazoline derived ligands generates brown precipitate with a yield of 51.25% and a range of melting points of 252.2-253.2 . The result of characterization with FTIR (cm-1) generates 3380.20 (tertiary amine), 2922.31-2852.42 (C-H pyridine), 2360.38 (C=C aromatic), 1595.93-1451.88 (C=N), 1232.25-982.66 (C-N pyrazoline), 751.61-690.29 (C-H aromatic) and 366.54-339.44 (Fe-N). The Uv-Vis spectrophotometer study with a concentration of 5x10-5 M showed two absorption peaks at 246 nm, 354 nm, and 440 nm. The resulting fluorescence intensity of 813.1 a.u. at the wavelenght of 500 nm. The study of complex compound fluorescence shows that the addition of Cd2+ heavy metal ion can be made as fluorosensor with turn-on (enhancement) type, while the complex compound in the addition of Zn2+ heavy metal ion can be made as fluorosensor with turn off-on (quenching-enhancement) type.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131091448","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}

引用次数: 0

Highly Selective and Sensitive Determination of Hg(II) Ions Using Ion Selective Electrodes (ISE) Coated with the BEC4ND1 Ionophore as Membranes 以BEC4ND1离子载体为膜的离子选择电极(ISE)高选择性、高灵敏度测定Hg(II)离子

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-31 DOI: 10.20961/jkpk.v7i2.62213

Nasriadi Dali, S. Dali, Armadi Chairunnas, H. Amalia, Srie Puspitasari

{"title":"Highly Selective and Sensitive Determination of Hg(II) Ions Using Ion Selective Electrodes (ISE) Coated with the BEC4ND1 Ionophore as Membranes","authors":"Nasriadi Dali, S. Dali, Armadi Chairunnas, H. Amalia, Srie Puspitasari","doi":"10.20961/jkpk.v7i2.62213","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.62213","url":null,"abstract":"The research on the highly selective and sensitive determination of Hg(II) ions using ion-selective electrodes (ISE) coated with the BEC4ND1 ionophore as a membrane has been successfully carried out. ISE was designed using the membrane composition of the [(BEC4ND1 ionophore : PTCPB : DOS : PVC) (3 : 2 : 60 : 35 % w/w)]. The ESI-BEC4ND1 ionophore has good characteristics where it shows a sensitivity value of 29.933 mV/decade in the Hg(II) ion concentration range of 10-9 - 10-1 M with a limit of detection (LoD) of 10-7 M. The response time obtained is in the range of 4 - 8 minutes with a relative standard deviation (RSD) of 0.548. The ESI-BEC4ND1 ionophore also shows the average value of selectivity coefficient (Kij) < 1. These results indicate that the presence of Zn(II), Cd(II), and Pb(II) ions as interfering ions in the analyte solution does not affect the performance of the ESI-BEC4ND1 ionophore in detecting Hg(II) ions. The ESI-BEC4ND1 ionophore that has been developed shows good selectivity, sensitivity, stability, and reproducibility, so the ESI-BEC4ND1 ionophore is promising to be used as a Hg(II) ion detector in the environment.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132460409","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}

引用次数: 0

Ethnochemistry Study of The Use of Plants as Traditional Medicine In The Community of Samadua District, South Aceh Regency 南亚齐县Samadua地区社区植物作为传统药物使用的民族化学研究

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2022-08-30 DOI: 10.20961/jkpk.v7i2.61521

A. Gani, E. Erlidawati, Nurmalasari Nurmalasari

{"title":"Ethnochemistry Study of The Use of Plants as Traditional Medicine In The Community of Samadua District, South Aceh Regency","authors":"A. Gani, E. Erlidawati, Nurmalasari Nurmalasari","doi":"10.20961/jkpk.v7i2.61521","DOIUrl":"https://doi.org/10.20961/jkpk.v7i2.61521","url":null,"abstract":"Research on the ethnochemistry study of using plants as traditional medicine in the Samadua District community has been conducted. In general, there are two ways to use plants as medicine: internal medicine (oral) and external medicine (topical). This type of research is descriptive qualitative with an ethnographic approach that aims to determine the types, benefits, processing methods, and chemical content of plants used as internal medicine by the people of Samadua District. Data collection techniques in this study were observation, interviews, and documentation. The sampling technique was carried out by purposive sampling, namely by conducting interviews with herbal practitioners, community leaders, and users. The results showed that in Samadua District, 54 plants were used by the community to treat diabetes, high blood pressure, cough, gout, cholesterol, diarrhea, and other complaints. Medicinal plants are processed by boiling, grinding, kneading, eating, making juice, or brewing. The most processing method is boiling at 46.34%, while the least is brewing at 1.21%. Plants can be used as drugs because they contain certain chemicals produced from secondary metabolites. The chemical constituents of these medicinal plants include flavonoids, alkaloids, saponins, tannins, terpenoids, phenolic compounds, glycosides, vitamins, steroids, and essential oils. Ethnochemistry studies combine public opinion with science regarding the effectiveness of plants considered useful as drugs based on the chemical compounds contained in these plants.","PeriodicalId":394335,"journal":{"name":"JKPK (Jurnal Kimia dan Pendidikan Kimia)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115351615","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}

引用次数: 1