Indonesian Journal of Pure and Applied Chemistry最新文献_第7页

PEMBUATAN DAN MODIFIKASI KARBON AKTIF PELEPAH KELAPA SAWIT (Cocus nucifera L.) SEBAGAI ADSORBEN METILEN BIRU (PREPARATION AND MODIFICATION OF ACTIVATED CARBON FROM PALM OIL (Cocus nucifera L.) AS ADSORBENT OF BLUE METHYLENE)

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2021-04-30 DOI: 10.26418/indonesian.v3i2.46309

Risma Achmad, S. Fauziah, M. Zakir

{"title":"PEMBUATAN DAN MODIFIKASI KARBON AKTIF PELEPAH KELAPA SAWIT (Cocus nucifera L.) SEBAGAI ADSORBEN METILEN BIRU (PREPARATION AND MODIFICATION OF ACTIVATED CARBON FROM PALM OIL (Cocus nucifera L.) AS ADSORBENT OF BLUE METHYLENE)","authors":"Risma Achmad, S. Fauziah, M. Zakir","doi":"10.26418/indonesian.v3i2.46309","DOIUrl":"https://doi.org/10.26418/indonesian.v3i2.46309","url":null,"abstract":"The methylene blue dye adsorbed by activated carbon from oil palm fronds modified with H2SO4 has been carried out. This study aims to utilize activated carbon from palm oil frond waste (Cocus nucifera L.) as an adsorbent to adsorb toxic methylene blue dye in textile industrial wastewater. The method consisted of several steps, namely: carbonization, carbon activation using 0.3M HCl activator, surface modification, and identification of functional groups using FTIR, characterization of the adsorbent material using SEM, BET, and surface area analysis with methylene blue. The optimal adsorption time of methylene blue by activated carbon is 20 minutes, longer than modified activated carbon which is 15 minutes. Adsorption of methylene blue by activated carbon and modified activated carbon according to the Langmuir isothermal model. The adsorption capacity of activated carbon was lower, namely 9.7847 mg / g compared to the adsorption capacity of modified activated carbon, which was 10.7642 mg / g. This proves that the active carbon modified by H2SO4 is better used as an adsorbent for adsorbing methylene blue dye","PeriodicalId":13554,"journal":{"name":"Indonesian Journal of Pure and Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88954818","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

KARAKTERISASI STRUKTUR TRITERPENOID DARI AKAR TANAMAN LANGSAT (Lansium domesticum) (CHARACTERIZATION OF TRITERPENOID STRUCTURE FROM LEAN PLANT (Lansium domesticum))

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2021-04-30 DOI: 10.26418/indonesian.v4i1.45237

Rizki Triadi, R. Rudiyansyah, A. Alimuddin

引用次数: 0

ADSORPSI ASAM LEMAK BEBAS DALAM MINYAK SAWIT MENTAH MENGGUNAKAN ADSORBEN ABU TANDAN KOSONG SAWIT 未稀释棕榈油脂肪酸在未经处理的棕榈油中加入脂肪酸

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36894

M. Syahwandi, W. Rahmalia, Titin Anita Zahara, T. Usman

{"title":"ADSORPSI ASAM LEMAK BEBAS DALAM MINYAK SAWIT MENTAH MENGGUNAKAN ADSORBEN ABU TANDAN KOSONG SAWIT","authors":"M. Syahwandi, W. Rahmalia, Titin Anita Zahara, T. Usman","doi":"10.26418/indonesian.v2i3.36894","DOIUrl":"https://doi.org/10.26418/indonesian.v2i3.36894","url":null,"abstract":"Research on the use of the oil palm empty fruit bunch (OPEFB) as an adsorbent for free fatty acid (FFA) adsorption on Crude Palm Oil (CPO) has been done. CPO is the main raw material in the manufacture of food products. The results of OPEFB adsorbent characteristics showed the amount of water content and ash content of 0,067% and 0,175%, XRF analysis obtained the greatest content of OPEFB in the form potassium metal as much as 44,24%, FTIR analysis identified that there were CO3 compounds in wave number 1648 cm-1 and SEM analysis indicates there are no pores in OPEFB. The result showed that the number of OPEFB with the best adsorption was 0,1 gram with 60 minute optimum contact time. The CPO adsorption process with OPEFB shows the Langmuir model with a correlation value (R2) of 0,8845 and the adsorptions kinetics follows the pseudo order 2 adsorption kinetics model with a correlation value (R2) of 0,9857. The results of this study showed the characteristics of CPO before and after adsorbed using 0,1 g of adsorbent OPEFB showed the amount of FFA level of 7,321% to 6,297%, water content of 0,0025% to 0,00119% and impurities content of 0,8847% to 0,8408%.","PeriodicalId":13554,"journal":{"name":"Indonesian Journal of Pure and Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84936355","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

KARAKTERISASI SENYAWA FENOLIK DARI BIJI BUAH RAMBUTAN (Nephelium lappaceum L.) 红毛丹果籽酚类化合物的特性(奈普氦拉帕塞姆L)

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36890

Eka Pebri Malinda, R. Rudiyansyah, Ajuk Sapar

引用次数: 0

ADSORPSI ASAM LEMAK BEBAS PADA CRUDE PALM OIL MENGGUNAKAN ZEOLIT TERAKTIVASI K2CO3 利用K2CO3激活的ZEOLIT上的自由脂肪酸沉降物

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36892

Nia Dahlia, W. Rahmalia, T. Usman

引用次数: 1

SINTESIS TIO2-KAOLIN DAN UJI AKTIVITAS FOTOKATALISIS UNTUK ANTIBAKTERI Escherichia Coli DAN Staphylococcus aureus 菌根菌聚合和光化活性测试用于耐菌大肠杆菌和菌根球菌菌

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36895

Desi Listiani, A. Sapar, A. B. Aritonang

{"title":"SINTESIS TIO2-KAOLIN DAN UJI AKTIVITAS FOTOKATALISIS UNTUK ANTIBAKTERI Escherichia Coli DAN Staphylococcus aureus","authors":"Desi Listiani, A. Sapar, A. B. Aritonang","doi":"10.26418/indonesian.v2i3.36895","DOIUrl":"https://doi.org/10.26418/indonesian.v2i3.36895","url":null,"abstract":"Synthesis of TiO2-kaolinite has been performed using solgel method with titanium tetraisopropoxide (TTIP) as precursor. Synthesis of TiO2-kaolinite by temperature calcination 450 °C for 2 hours to obtain TiO2-kaolinite anatase and then the antibacterial photocatalysis activity of E. coli and S. aureus was performed. Identification of the characteristics TiO2-kaolinite used XRD, SEM, FTIR, and DR-UV. It was found that TiO2-kaolinite has been anatase phase structure with the particle size is 19-103 nm, and have a spheric morphology. Infrared spectra indicate a specific group in wave number 921 cm-1. The antibacterial photocatalysis activity test was performed in liquid media and measurements by the Optical Density (OD) is using Spectrophotometer UV-Vis at wavelength of 600 nm. The results photocatalysisis activity of TiO2-kaolinite for E.coli, TiO2-kaolinite can kill bacteria occured in the 60th minute, while for S. aureus TiO2-kaolin can kill bacteria occured in the 100th minute. Our results clearly that the TiO2-kaolinite has potential as an antibacterial material in water sterilization.","PeriodicalId":13554,"journal":{"name":"Indonesian Journal of Pure and Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72772137","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

SINTESIS TiO2/Ti DENGAN TEKNIK ANODISASI DAN UJI AKTIVITAS FOTOKATALIS SEBAGAI ANTIBAKTERI Escherichia coli 以消毒技术和光化活性为抗菌的Escherichia大肠杆菌合成TiO2/Ti

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36899

Resti Fartiwi, W. Warsidah, A. B. Aritonang

引用次数: 3

SINTESIS DAN TRANSISI ELEKTRONIK SENYAWA KOMPLEKS KLOROFIL DENGAN LOGAM (M = Co2+, Fe3+) 用金属合成和过渡的复杂叶绿素化合物(M = Co2+， Fe3+)

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-10 DOI: 10.26418/indonesian.v2i3.36891

Roberta Anjelia, I. H. Silalahi, Gusrizal Gusrizal

引用次数: 3

KARAKTERISASI MINYAK ATSIRI DAUN UJUNG ATAP (Baeckea Frutesces L) DARI HUTAN DESA SUNGAI NANJUNG KABUPATEN KETAPANG KALBAR

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-09 DOI: 10.26418/indonesian.v2i2.36911

M. Supandi, M. A. Wibowo, Titin Anita Zahara

引用次数: 1

SINTESIS DAN KARAKTERISASI GEOPOLIMER BERBAHAN DASAR KAOLIN CAPKALA DENGAN VARIASI RASIO MOL SiO2/Al2O3 由高丽根酸根构成的地质聚合物的合成和特性，其摩尔硅比/Al2O3的变化

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2019-10-09 DOI: 10.26418/indonesian.v2i2.36912

Yatim Mustakim, N. Nurlina, I. Syahbanu

{"title":"SINTESIS DAN KARAKTERISASI GEOPOLIMER BERBAHAN DASAR KAOLIN CAPKALA DENGAN VARIASI RASIO MOL SiO2/Al2O3","authors":"Yatim Mustakim, N. Nurlina, I. Syahbanu","doi":"10.26418/indonesian.v2i2.36912","DOIUrl":"https://doi.org/10.26418/indonesian.v2i2.36912","url":null,"abstract":"One of the potential raw materials for the preparation of geopolymers is kaolin. In the present report, the used activated kaolin is from Capkala Village in West Borneo. This paper presents an experimental study on the influence of different SiO2/Al2O3 molar ratios on the compressive strength and microstructural characteristics of the Capkala kaolin-based geopolymer. The used Capkala kaolin was a product of the calcination of the source material at 750ºC 2 h. The alkaline activator solutions that were used to activate the activated capkala kaolin precursor were prepared by mixing NaOH solution with Na2SiO3 solution. The activator solution was allowed to equilibrate for a minimum of 24 h at a room temperature before use. The geopolymer was prepared by hand mixing of the Capkala kaolin and the activator solution. Experiments conducted with SiO2/Al2O3 molar ratios of 3.8; 3.9; 4.0; 4.1 and 4.2 for all mixing. The resulting pastes are cast in cylinder molds of 2.3 × 4.6 cm. The pastes hardened 24 h in the forms, at room temperature for 24 h. The geopolymer was dried at 60ºC 2 h. The geopolymer was tested for compressive strength and sample pieces were taken from ones with the highest strength for XRD and SEM. Based on the test was obtained that geopolymer with 3.9 SiO2/Al2O3 ratios has the highest compressive strength that is 2.820 Mpa. The XRD analysis showed the peak at 2θ(º) 26,69o, 20,92o dan 19,77 o. The spectra FTIR of geopolymer showed the absorption at 3289.96 cm-1; 1647.67 cm-1 and 955.65 cm-1. Moreover, there are functional groups absorption for geopolymer such Al-OH stretch vibration (near 900 cm-1), stretch vibration of Si-O and Al-O (600-700 cm-1), Si-O-Al bend vibration (near 500 cm-1). The morphology of the capkala kaolin based geopolymer with SEM has succeeded in changing the kaolin structures in the form of regular slabs to be more irregular due to heating with a temperature of 750ºC.","PeriodicalId":13554,"journal":{"name":"Indonesian Journal of Pure and Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87556962","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: 3