IJFAC Indonesian Journal of Fundamental and Applied Chemistry最新文献_第2页

Preparation and Characterization of Catalyst Zn/Al2O3 Catalyst Using Dry and Wet Impregnation Method 干湿浸渍法制备Zn/Al2O3催化剂及表征

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2023-02-25 DOI: 10.24845/ijfac.v8.i1.25

Selpiana Selpiana, D. Bahrin, Muhammad Ridho Habibie, Faras Saskia Samara

{"title":"Preparation and Characterization of Catalyst Zn/Al2O3 Catalyst Using Dry and Wet Impregnation Method","authors":"Selpiana Selpiana, D. Bahrin, Muhammad Ridho Habibie, Faras Saskia Samara","doi":"10.24845/ijfac.v8.i1.25","DOIUrl":"https://doi.org/10.24845/ijfac.v8.i1.25","url":null,"abstract":"Metal supported catalysts are used in many catalytic cracking processes. Experiments have shown that the increasing of metal loaded within the catalyst support may affected the increasing of cracking process conversion and selectivity. Therefore, a fundamental understanding of increasing the metal loaded is needed. In this study, Zinc on Alumina supported catalyst was prepared using the dry and wet impregnation methods to obtain the best amount of Zn metal content in Al2O3 as catalyst support with good characteristics for catalytic cracking. The prepared precursor solution in wet impregnation method was varied in concentration. While the dry impregnation method was varied in drying temperature. The Atomic Absorption Spectroscopy test results the metal content of Zn on the variation of precursor solution concentration on 0,5 M; 2,5 M; 4,5 M are 1,06%; 9,65%; 15,91% and in the variation of the drying temperature at 25ºC, 50ºC, and 80ºC respectively are 18,32%; 12,48%; and 39,07%. Characteristics analysis through X-Ray Diffraction, Brunauer-Emmet-Teller, and Scanning Electron Microscopy tests have also been carried out on samples with the highest metal content of 39,07% and samples with the lowest metal content of 1,06%.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85133135","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

Characteristic Study of Biodiesel from Used Cooking Oil using Nipah Skin Ash as a Heterogeneous Catalyst 以尼帕皮灰为多相催化剂从废食用油中制备生物柴油的特性研究

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2023-02-25 DOI: 10.24845/ijfac.v8.i1.34

Zainuddin Ginting, Rizka Mulyawan, M. Meriatna, Tata Tirani, Asnadia Asnadia, Luthfi Mughni Anisa Haryono

{"title":"Characteristic Study of Biodiesel from Used Cooking Oil using Nipah Skin Ash as a Heterogeneous Catalyst","authors":"Zainuddin Ginting, Rizka Mulyawan, M. Meriatna, Tata Tirani, Asnadia Asnadia, Luthfi Mughni Anisa Haryono","doi":"10.24845/ijfac.v8.i1.34","DOIUrl":"https://doi.org/10.24845/ijfac.v8.i1.34","url":null,"abstract":"One type of renewable alternative energy that has great potential to be developed is biodiesel. Biodiesel is a fuel consisting of a mixture of mono-alkyl esters of long-chain fatty acids made from renewable sources such as vegetable oils or animal fats. Such as vegetable oils or animal fats. One of the vegetable oil products that can be used as feedstock for biodiesel production is used cooking oil. Used cooking oil is used oil. The purpose of this research is to study the characteristics of the effect of catalyst mass, the ratio of used cooking oil mole to methanol mole, and the effect of adding THF 1:1 co-solvent on the purity of biodiesel using heterogeneous catalyst ash derived from Nipah fruit skin calcined at 500°C for 4 hours. The process variables were transesterification reaction time 60, 90, 120, and 150 minutes, a mole ratio of methanol to oil 1:19, 1:21, and 1:23 with the addition of THF: methanol v/v 1:1 co-solvent. Biodiesel properties such as density, viscosity, moisture content, and acid number were evaluated and compared with the Indonesian National Standard (SNI). The characteristics of biodiesel were obtained with a density of 860.2 Kg/m3 and a viscosity of 2.37 mm2/s. They contained 44.14% Palmitic acid and 43.04% Octadecenoic acid (oleic), following the Indonesian National Standard (SNI). The maximum yield obtained was 93.3598% using a mole ratio of oil: methanol 1:23 at 60°C for 120 minutes, TFT 1:1, and 3% catalyst mass. The results obtained in this study indicate that heterogeneous catalysts made from kapok skin can be used to produce biodiesel. Adding TFT co-solvent can increase biodiesel production and methyl ester yield so that high purity is obtained.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83192820","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

Synthesis of Chitosan−Al2O3 Composite using the Sol-Gel Method and Its Application in Photodegradation of Methylene Blue 溶胶-凝胶法制备壳聚糖- Al2O3复合材料及其在亚甲基蓝光降解中的应用

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2023-02-25 DOI: 10.24845/ijfac.v8.i1.40

D. Desnelli, Ipro Hati Padilah, M. Ulfa, E. Eliza, A. Mara, Fatma Fatma

{"title":"Synthesis of Chitosan−Al2O3 Composite using the Sol-Gel Method and Its Application in Photodegradation of Methylene Blue","authors":"D. Desnelli, Ipro Hati Padilah, M. Ulfa, E. Eliza, A. Mara, Fatma Fatma","doi":"10.24845/ijfac.v8.i1.40","DOIUrl":"https://doi.org/10.24845/ijfac.v8.i1.40","url":null,"abstract":"The research on synthesis of composites Kitosan-Al2O3 by the sol-gel method for photodegradation of methylene blue has been carried out. Chitosan-Al2O3 varied by mass ratios (1:1), (1:2) and (1:3). The product were characterized using XRD and UV-DRS. Chitosan-Al2O3 ratio (1:1) were characterized by SEM-EDS. The best material will be used to degrade the mehtylene blue by various condition, i.e., effect of pH, contact time and initial concentration of methylene blue. The Chitosan-Al2O3 (1:1) composite was chosen as a material for degrading methylene blue. The result of characterization using XRD showed crystal size the Chitosan- Al2O3 (1:1) composites result were 3,17 nm. UV-DRS characterization, The band gap energy is 1,35 eV. The morphological condition by SEM of Chitosan-Al2O3 ratio (1:1) showed a spherical shape with a small size, and a porous surface the constituent elements C (4.93%), O (33.31%), Na (13.92%), Al (45.59%) dan Zn (2.24%). The degradation process showed the effective condition were pH 10 and contact time of 200 minutes. The optimum concentration of methylene blue at 20 ppm with percent effectivity of concentration reduction methylene blue i.e. 79.35% and the result of TOC analysis i.e. 22,36%. The Chitosan-Al2O3 can be used to degraded the Methylene blue.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78394819","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

Antibacterial Activity Test of Tropical Plants (Morinda citrifolia) and (Melaleuca leucadendra) Against Pneumonia-causing Bacteria 热带植物桑葚和千层树对致肺炎细菌的抑菌活性试验

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2023-02-25 DOI: 10.24845/ijfac.v8.i1.8

Nadila Pitriani, H. Hermansyah, Ferlinahayati Ferlinahayati

{"title":"Antibacterial Activity Test of Tropical Plants (Morinda citrifolia) and (Melaleuca leucadendra) Against Pneumonia-causing Bacteria","authors":"Nadila Pitriani, H. Hermansyah, Ferlinahayati Ferlinahayati","doi":"10.24845/ijfac.v8.i1.8","DOIUrl":"https://doi.org/10.24845/ijfac.v8.i1.8","url":null,"abstract":"This study aims to determine the antibacterial activity of tropical plants against bacteria that cause pneumonia. The initial stage is to prepare samples of tropical plants that are macerated with methanol and produce a thick extract, namely 38.3881 grams of noni fruit with a yield of 13.422%, and cajuput leaves as much as 11.211 grams with a yield of 3.38%. The next step, each sample was fractionated using VLC then produced ethyl acetate fraction and methanol fraction. Bacterial activity test was carried out by disc diffusion method, and the MIC value was determined by liquid dilution method using UV-Vis spectrophotometry. Based on the results of antibacterial testing, the noni fruit extract and cajuput extract obtained the most active fraction in response to inhibiting bacteria causing pneumonia (S. pneumonia, S. aureus and K. pneumoniae) was the ethyl acetate fraction with a strong average response zone of inhibition up to very strong with MIC value of ethyl acetate fraction from noni fruit extract 6250 ppm each and MIC value of ethyl acetate fraction from cajuput extract (Melaleuca leucadendra) 390.625 ppm each; 390.625 ppm; and 195.3125 ppm.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89543424","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

Removal of TDS, Fe, Oil and Greases of Laboratory Wastewater Using Ceramic Membrane Technology 陶瓷膜技术去除实验室废水中的TDS、Fe和油脂

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2023-02-25 DOI: 10.24845/ijfac.v8.i1.17

Destri Yunita, M. Faizal, S. Suheryanto

{"title":"Removal of TDS, Fe, Oil and Greases of Laboratory Wastewater Using Ceramic Membrane Technology","authors":"Destri Yunita, M. Faizal, S. Suheryanto","doi":"10.24845/ijfac.v8.i1.17","DOIUrl":"https://doi.org/10.24845/ijfac.v8.i1.17","url":null,"abstract":"Biochemistry Laboratory and Medicinal Chemistry as supporting facilities for practicum and research results in wastewater, which contains organic matter and suspended solids, such as TDS, Fe, Oil and Greases. If wastewater discarded directly to the drainage without passing sewage treatment system, then it potentially pollutes the environment and endangers the lives of living creatures. The purpose of this research is to evaluate the effectivity of the filtration system using ceramic membrane filtration technology to reduce the amount of TDS, Fe, Oil and Greases on laboratory’s wastewater. The filtration process is using ceramic membrane made of clay, activated carbon from lignite, and Fe powder. Pretreatment is done with the neutralization using NaOH 5N and coagulation using aluminum sulfate 400 mg/L. Variable in this research is the operating time of 5 and 20 minutes with operating pressure 1 kg/cm2. The result of this research shows that after 20 minutes operating, the reduction percentage of TDS, Fe, Oil and Greases after the process using ceramic membrane filtration technology were 0.97; 96.01; and 91.03 %, respectively. As the conclusion, the ceramic membrane is able to reduce the parameter of wastewater optimally.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88251980","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 and Characterization of CaO-Zeolite Catalyst by Sonochemical Engineering Method 用声化学工程方法合成曹石分子筛催化剂及表征

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2022-10-25 DOI: 10.24845/ijfac.v7.i3.113

Widyarini Widyarini, M. D. Bustan, S. Haryati

{"title":"Synthesis and Characterization of CaO-Zeolite Catalyst by Sonochemical Engineering Method","authors":"Widyarini Widyarini, M. D. Bustan, S. Haryati","doi":"10.24845/ijfac.v7.i3.113","DOIUrl":"https://doi.org/10.24845/ijfac.v7.i3.113","url":null,"abstract":"Calcium Oxide (CaO) loaded on zeolite was categorized as a heterogeneous catalyst. The utilization of CaO catalyst could be implemented in catalytic pyrolysis enhance gaseous production. In this paper, CaSO4.2H2O is an active site embedded in natural zeolite, and the activity of the CaO-Zeolite catalyst is synthesized by a sonochemical impregnation-assisted drying process and calcination. The stirrer impregnation method was used as a control. CaO-Zeolite catalyst characterization and properties were identified via Scanning Electron Microscopy- Energy Dispersive X-Ray (SEM-EDX).The activation experiments were performed at an oven temperature of 120oC for 5 h and a calcination temperature of 300oC for 2 h. The synthesized catalysts of sonochemical were performed at 20 minutes, 20 kHz, and 1200 Watt, and the synthesized catalyst of stirrer were performed at 120 minutes, 1500 rpm, and 1000 watts. The experimental results revealed that the characterization of the catalysts prepared by the sonochemical method was better than that of the stirrer. Specifically, obtained CaO-Zeolite catalyst with Ca wt % increased from 0.86 wt% NZ (natural zeolite) to (11.3 wt%, 14.15 wt% and 23.48 wt%) of sonochemical and (11.82wt%, 13.95 wt% and 20.64wt%) of stirrer. The results demonstrated that Ca wt% by sonochemical in 20 minutes dispersed at support surface (zeolite) more effective than stirrer in 120 minutes. These results were impacted by acoustic cavitation and shockwave of ultrasonic on solid-liquid transport and distribution. On the other side, sonochemical assisted the activation technique to minimize particle size and allowed metal oxide (CaSO4.2H2O) to be dispersed uniformly into the pores structure of the zeolite. The utilization of sonochemical in CaO-Zeolite synthesizing enhanced catalyst activity.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83308601","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

Standardization in ethanolic extract of Paronema canescens leaves 槟榔叶乙醇提取物的标准化

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2022-10-25 DOI: 10.24845/ijfac.v7.i3.136

Dirli Fahmi Rizal, M. Muharni, H. Yohandini, Ferlinahayati Ferlinahayati

引用次数: 0

Comparison of Acidity Test Method of Nickel Phosphate Silica Catalyst for Production Levulinic Acid from Glucose 葡萄糖制乙酰丙酸用磷酸镍硅催化剂酸度试验方法比较

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2022-10-25 DOI: 10.24845/ijfac.v7.i3.106

Qodria Utami Putri, H. Hasanudin, A. Mara

{"title":"Comparison of Acidity Test Method of Nickel Phosphate Silica Catalyst for Production Levulinic Acid from Glucose","authors":"Qodria Utami Putri, H. Hasanudin, A. Mara","doi":"10.24845/ijfac.v7.i3.106","DOIUrl":"https://doi.org/10.24845/ijfac.v7.i3.106","url":null,"abstract":"The reaction of levulinic acid production from glucose has a reaction stage that requires a high temperature and high activation energy so that in this levulinic acid production reaction a catalyst is needed. The required catalyst must have a lewis acid site and a bronsted acid site so that the acidity of the catalyst is very influential for the successful production of levulonic acid. Silica nickel phosphate catalysts have lewis acid sites from Ni metal and bronsted acid sites from phosphoric and silica groups. The acidity of the catalyst was measured using the pyridine and ammonia adsorption method and the acidity center strength method using the TGA-DTA base adsorption-desorption. The adsorption of ammonia and pyridine uses the gravimetric method so that it can easily obtain the amount of total acidity of the catalyst and the acidity of the catalyst surface while the TGA-DTA method shows the acid strength of the actual catalyst, which is the real state of the catalyst when catalyzing a reaction and shows the catalyst's resistance to high temperatures. These two methods of measuring acidity have the same disadvantage that they cannot show and know the number of lewis acid sites and bronsted acid sites.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85157519","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

In silico screening of natural compounds from Jatropha curcas (Euphorbiaceae, Linn) and Jatropha gossypifolia (Euphorbiaceae, Linn) against SARS-CoV2, a COVID-19 main protease, using molecular docking approach 采用分子对接方法对麻疯树(Euphorbiaceae, Linn)和麻疯树(Euphorbiaceae, Linn)抗新冠病毒主要蛋白酶SARS-CoV2的天然化合物进行了筛选

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2022-10-25 DOI: 10.24845/ijfac.v7.i3.148

Emmanuel Kitete Mulongo, J. T. Kilembe, G. Bongo, K. Ngbolua, Dorothée Tshilanda Dinangayi, D. Tshibangu, P. Mpiana

{"title":"In silico screening of natural compounds from Jatropha curcas (Euphorbiaceae, Linn) and Jatropha gossypifolia (Euphorbiaceae, Linn) against SARS-CoV2, a COVID-19 main protease, using molecular docking approach","authors":"Emmanuel Kitete Mulongo, J. T. Kilembe, G. Bongo, K. Ngbolua, Dorothée Tshilanda Dinangayi, D. Tshibangu, P. Mpiana","doi":"10.24845/ijfac.v7.i3.148","DOIUrl":"https://doi.org/10.24845/ijfac.v7.i3.148","url":null,"abstract":"SARS-Cov2, the COVID-19 main protease is set to be a good target for potential inhibitors especially from plants. 6LU7, the crystal structure of COVID-19 has been used for docking with natural compounds from Jatropha curcas and Jatropha gossypifolia. The following compounds identified within J. curcas have given good binding affinities than Azythromycin (control sample): 2-methyl anthraquinone, Curcusone D, Palmarumycin CP1, Apigenin, Jatropholone A, Jatropholone B, Spirocurcasone and Multidione. The best score is for Palmarumycin CP1 -8.2 Kcal/mol. All these compounds are R05 satisfied, good HIA scores and good pharmacokinetic properties. In J.gossypifolia, 2,24,25-Trihydroxylanosta-1,7-dien-3-one ; Cleomiscosin A, Citlalitrione, Gossypifan, Jatrophenone, Jatropholone A, Jatropholone B, Gadain, Gossypidien, Falodone and Gossypiline are having good binding affinities than Azythromycin (control sample). The best score is for Cleomiscosin A -8.2 Kcal/mol. All these compounds are R05 satisfied, good HIA scores and good pharmacokinetic properties. This study has shown anti-COVID-19 potential of these two plants.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85922053","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

Coal Dust Characteristics and Its Association with Air Quality in Palembang Coal Unloading Station 巨港卸煤站煤尘特征及其与空气质量的关系

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2022-10-25 DOI: 10.24845/ijfac.v7.i3.92

Arie Wahyudi, H. Zulkifli, S. Arita, R. Sitorus

引用次数: 0