Indonesian Journal of Chemistry最新文献_第2页

Synthesis of Mesoporous Silica from Palm Oil Boiler Ash (MS-POBA) with Addition of Methyl Ester Sulfonate as a Template for Free Fatty Acid Adsorption from Crude Palm Oil (CPO) 以棕榈油锅炉灰为原料合成介孔二氧化硅（MS-POBA），并添加甲基酯磺酸盐作为吸附粗棕榈油（CPO）中游离脂肪酸的模板

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.87703

Cita Sitohang, A. Kuncaka, A. Suratman

{"title":"Synthesis of Mesoporous Silica from Palm Oil Boiler Ash (MS-POBA) with Addition of Methyl Ester Sulfonate as a Template for Free Fatty Acid Adsorption from Crude Palm Oil (CPO)","authors":"Cita Sitohang, A. Kuncaka, A. Suratman","doi":"10.22146/ijc.87703","DOIUrl":"https://doi.org/10.22146/ijc.87703","url":null,"abstract":"The synthesis of mesoporous material by utilizing palm oil boiler ash (POBA) waste as the silica source and methyl ester sulfonate (MES) surfactant as the template for a high-porosity was investigated for free fatty acids (FFA) adsorption. The research was initiated with silica extraction from POBA by sodium hydroxide addition through the sol-gel precipitation method. Silica modification was carried out with MES surfactant and 3-aminopropyltrimethoxysilane (APTMS) as the co-structure-directing agent (CSDA) in different calcination temperatures. Mesoporous silica-POBA (MS-POBA) free template had a surface area, pore diameter, and pore volume (41.033 m2/g, 4.180 nm, and 0.250 cm3/g) lower than MS-POBA with the template (71.0147 m2/g, 7.923 nm, and 0.524 cm3/g). The ability of MS-POBA to adsorb FFA reached its optimum conditions with an adsorption time of 20 min and an adsorbent dosage of 0.24 g. The FFA removal by MS-POBA with the template was found to have higher adsorption ability, which was 35.54%, compared to the MS-POBA free template of 26.68%. The high porosity of MS-POBA with a template makes the FFA adsorption capacity of this material higher than MS-POBA free template.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141275720","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

Chromatographic and Spectrophotometric Determination of Clindamycin in Pharmaceutical Products 色谱法和分光光度法测定药品中的克林霉素

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.91599

I. Al-Momani, Lana Mohammad Zaid Al-Kilani

引用次数: 0

Kinetics and Thermodynamics Study of Ammonia Leaching on Spent LMR-NMC Battery Cathodes 废 LMR-NMC 电池阴极上的氨浸出动力学和热力学研究

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.93312

Indra Perdana, Muhammad Irfan Rahman, D. Aprilianto, H. T. Petrus, Divita Hayyu Kinanti

{"title":"Kinetics and Thermodynamics Study of Ammonia Leaching on Spent LMR-NMC Battery Cathodes","authors":"Indra Perdana, Muhammad Irfan Rahman, D. Aprilianto, H. T. Petrus, Divita Hayyu Kinanti","doi":"10.22146/ijc.93312","DOIUrl":"https://doi.org/10.22146/ijc.93312","url":null,"abstract":"The recycling of spent lithium NMC-type batteries, widely used in electric vehicles, presents a challenge due to manganese content, which complicates metal separation and purification. This study explored a selective leaching process using ammonia to recover metals from high-manganese-content LMR-NMC cathodes. By adjusting the (NH4)2SO4 reagent concentration to 1–2 M and maintaining the temperature between 50–80 °C, the recovery rates of lithium, nickel and cobalt metals were enhanced, leaving manganese primarily as residue in the form of Mn(OH)₂ and (NH4)2Mn(SO4)2. A kinetics model, integrating an equilibrium-shrinking core model with a modified temperature-dependent Arrhenius approach, accurately simulates the metal recovery. The activation energies of the forward leaching reactions of Li, Ni, and Co were respectively (1.4331±0.0036)×105, (1.5494±0.0034)×105, and (1.5743±0.0040)×105 J/mol, while those for the backward reactions were (5.3307±0.0041)×105, (2.4753±0.0093)×105, and (1.6289±0.0092)×105 J/mol, respectively. The leaching mechanism was found to be exothermic, which allows maximum recovery at low temperatures. The findings highlight ammonia’s effectiveness as a selective leachant, significantly reducing manganese in the leaching solution, and streamlining nickel and cobalt separation, thus enhancing the recycling process’s efficiency and sustainability.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141276909","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

Reducing Free Fatty Acids in Crude Palm Oil Using Diethylene Glycol and Zinc(II) Chloride Based Deep Eutectic Solvent 使用二乙二醇和氯化锌（II）深共晶溶剂降低粗棕榈油中的游离脂肪酸含量

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.85980

Lieli Suriyanti, T. Usman, W. Rahmalia

{"title":"Reducing Free Fatty Acids in Crude Palm Oil Using Diethylene Glycol and Zinc(II) Chloride Based Deep Eutectic Solvent","authors":"Lieli Suriyanti, T. Usman, W. Rahmalia","doi":"10.22146/ijc.85980","DOIUrl":"https://doi.org/10.22146/ijc.85980","url":null,"abstract":"Deep eutectic solvents (DES) were prepared by precise combinations of mol fractions of chemical compounds, resulting in a lowered melting point due to hydrogen bonding. This research aimed to elucidate the physicochemical attributes of DES and its effectiveness in mitigating free fatty acid (FFA) levels in crude palm oil (CPO). Zinc(II) chloride (ZnCl2) served as the hydrogen bond acceptor (HBA) while diethylene glycol (DEG) as the hydrogen bond donor (HBD). Characterization included freezing point, density, viscosity, conductivity, and pH determination. At a ZnCl2 mol fraction of 0.30, the resulting DES exhibited homogeneity with transparent liquid properties, featuring a freezing point below −10 °C, density of 1.42 g/mL, viscosity of 1933.40 cP, conductivity of 66.13 µS/cm, and pH 3.42. FTIR spectra confirmed hydrogen bond interactions between HBA and HBD. Applied to CPO at a 1:1 volumetric ratio (DES:CPO), with 2 h of stirring time at 50 °C, FFA content decreased from 4.11 to 0.86%. This research highlights DES as an environmentally sustainable purification agent, significantly reducing FFA levels in unrefined palm oil.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281696","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 Chitosan Silica Membrane from Petung Bamboo (Dendrocalamus asper) Leaves and Its Application as Pb(II) Metallic Adsorbent 利用楠竹叶合成壳聚糖硅胶膜并将其用作铅（II）金属吸附剂

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.82065

H. Hasri, Diana Eka Pratiwi, Isriyanti Safitri, Satria Putra Jaya Negara

{"title":"Synthesis of Chitosan Silica Membrane from Petung Bamboo (Dendrocalamus asper) Leaves and Its Application as Pb(II) Metallic Adsorbent","authors":"H. Hasri, Diana Eka Pratiwi, Isriyanti Safitri, Satria Putra Jaya Negara","doi":"10.22146/ijc.82065","DOIUrl":"https://doi.org/10.22146/ijc.82065","url":null,"abstract":"Membrane synthesis through a phase inversion method using chitosan and sodium silicate solutions has been conducted. This research aims to characterize the silica chitosan membrane (SCM) of petung bamboo leaves and determine the synthesized product's adsorption capacity for Pb(II) ions. The XRF characterization showed the silica content of petung bamboo leaves with a percentage of 78.03%. SEM analysis before adsorption is around 13.0 μm, and the pore diameter after adsorption is around 9.7 μm. The results of adsorption analysis of Pb(II) metal using AAS showed that the SCM variation A at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.8101 ppm, and at an initial concentration of 25.0000 ppm Pb(II) metal was 22.3421 ppm. The variation B at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.8870 ppm and at an initial concentration of 25.0000 ppm Pb(II) metal adsorbed was 23.5806 ppm. The variation C at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.9639 ppm, and at an initial concentration of 25.0000 ppm Pb(II) metal was 24.1855 ppm. The results of this research conclude that the highest SCM adsorption power is variation C (2%:22.95%) with a percentage of 99.63%.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141282061","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 Study of Aptamer Specificity for Detection of Insulin as Development for Diabetes Mellitus Diagnosis 检测胰岛素的质谱特异性研究，为糖尿病诊断提供新思路

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.91602

Dinda Exelsa Mulyani, I. Maksum, Muhammad Yusuf

{"title":"In Silico Study of Aptamer Specificity for Detection of Insulin as Development for Diabetes Mellitus Diagnosis","authors":"Dinda Exelsa Mulyani, I. Maksum, Muhammad Yusuf","doi":"10.22146/ijc.91602","DOIUrl":"https://doi.org/10.22146/ijc.91602","url":null,"abstract":"Diabetes mellitus (DM) is a metabolic disorder characterized by elevated blood glucose levels. There are 2 types of DM where molecular-level diagnosis becomes very important because both have different treatments to avoid treatment errors. An electrochemical aptasensor as a type 2 DM detector with insulin target has been developed. This study aims to determine the interaction and specificity based on the values of RMSD, RMSF, and binding energy between aptamer and insulin when it reaches stability in silico compared to HbA1c and glucose. Docking simulations were performed on the HDOCK webserver and dynamics simulations for 1000 ns on the aptamer and protein molecular models used. The simulation results were analyzed to see the stability and visualized using VMD to see the conformation of the aptamer-ligand complex. The docking result showed higher binding energy between aptamer-insulin compared to other molecules, namely −221.87 kcal/mol. The results of RMSF and RMSD analysis of molecular dynamics simulations show that the system is stable, has the best binding energy value of −9.9510 kcal/mol. The aptamer complex with insulin showed better specificity compared to glucose and HbA1c based on RMSD, RMSF, and binding energy.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281032","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

Antibacterial Activity and CO2 Capture by Cerium-Copper Mixed Oxides Prepared Using a Co-precipitation Method 用共沉淀法制备的铈铜混合氧化物的抗菌活性和二氧化碳捕获能力

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.88872

S. Kamonwannasit, C. Futalan, P. Khemthong, Saran Youngjan, P. Phatai

{"title":"Antibacterial Activity and CO2 Capture by Cerium-Copper Mixed Oxides Prepared Using a Co-precipitation Method","authors":"S. Kamonwannasit, C. Futalan, P. Khemthong, Saran Youngjan, P. Phatai","doi":"10.22146/ijc.88872","DOIUrl":"https://doi.org/10.22146/ijc.88872","url":null,"abstract":"Indoor air pollution is comprised of fine particles, bacteria, fungi, and hydrocarbons. Acceptable indoor air quality is maintained using several layers of air filters. Alternative materials with the capacity to remove CO2 from indoor air with antibacterial efficacy need to be further investigated. Mixed oxides of Ce1.0-xCuxO (x = 0.0, 0.1, 0.5, 0.9, 1.0) were synthesized using a co-precipitation method. Characterization studies revealed that single oxides of Ce1.0O and Cu1.0O were of cubic fluorite and monoclinic crystal structures, respectively. Results also show that Ce0.1Cu0.9O and Ce0.5Cu0.5O were composites. All samples were classified as mesoporous materials with a type IV isotherm, and the main functional group was identified as Ce–O–Cu. The surface area of Ce0.5Cu0.5O was 17.63 m2/g. The highest CO2 adsorption capacity was 5.72 cm3/g for Ce0.5Cu0.5O. Moreover, the greatest antibacterial activity against B. subtilis (12.22 mm inhibition zone) and P. aeruginosa (7.34 mm inhibition zone) was observed for Ce0.5Cu0.5O at a 30 mg/L concentration. The synthesis of mixed Ce1.0-xCuxO oxides along with their satisfactory antibacterial performance and CO2 adsorption capacity, indicate its potential use as an alternative material for inclusion in indoor air filters.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141274448","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

Molecular Docking, Synthesis and In Vitro Antiplasmodium Assay of Monoketone Curcumin Analogous from 2-Chlorobenzaldehyde 2-氯苯甲醛单酮姜黄素类似物的分子对接、合成和体外抗疟原虫试验

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.81122

Chessy Rima Mustika, Endang Astuti, Muhammad Idham Darussalam Marjan

{"title":"Molecular Docking, Synthesis and In Vitro Antiplasmodium Assay of Monoketone Curcumin Analogous from 2-Chlorobenzaldehyde","authors":"Chessy Rima Mustika, Endang Astuti, Muhammad Idham Darussalam Marjan","doi":"10.22146/ijc.81122","DOIUrl":"https://doi.org/10.22146/ijc.81122","url":null,"abstract":"This research aimed to develop new curcumin analogous as antiplasmodium candidates. Six curcumin analogous (1-6) were proposed and docked against three Plasmodium falciparum receptors, namely PfENR, PfLDH, and PfATP6. The docking studies were carried out to predict the interaction among the compounds and receptors as well as their binding affinity. Three curcumin analogous (3, 4, and 6), which displayed specific interactions with the target receptors and possessed the lowest binding affinity were further proceeded to synthesis and in vitro antiplasmodium assay. Synthesis of the analogous 3, 4, and 6 was carried out from 2-chlorobenzadehyde via aldol condensation reaction and the products were obtained in good yields. Their in vitro antiplasmodium activities were then evaluated against P. falciparum FCR3 and 3D7 strains. The results showed that analogous 3, 4, and 6 were active against both strains with low levels of resistance. The in silico evaluation of the physicochemical and pharmacokinetic parameters showed that curcumin analogous displayed a better ADMET profile than curcumin, demonstrating the great potential of the developed curcumin analogous as antiplasmodium candidates.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281550","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

Evaluation of Lead Ion in the Wastewater of the Lifting and Treatment Stations Using ICP-MS and CPE Methods 使用 ICP-MS 和 CPE 方法评估提升和处理站废水中的铅离子

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.87545

Mohammed Nasser Hussain, A. F. Khudhair, Hussain Jawad Ahmed

{"title":"Evaluation of Lead Ion in the Wastewater of the Lifting and Treatment Stations Using ICP-MS and CPE Methods","authors":"Mohammed Nasser Hussain, A. F. Khudhair, Hussain Jawad Ahmed","doi":"10.22146/ijc.87545","DOIUrl":"https://doi.org/10.22146/ijc.87545","url":null,"abstract":"To pre-concentrate trace amounts of lead before determining it by UV-vis spectrophotometer, a new method for micelle-mediated phase separation has been created. The process depends on the extraction of lead from iodine media using Triton X-114 in the cloud point extraction method without the need for any chelating agents, where the optimal conditions for the method were achieved, which temperature 50 °C, pH 4, and 30 mmol L−1 concentration of KI, 0.3 mL of 2% (v/v) Triton X-114, and time of 10 min in the water bath. Linearity was followed between 1 and 16 µg/mL of lead concentration. The method's lead detection limit is 0.1 µg/mL and %RSD 3.633. Additionally, the interference impact of certain cations was evaluated. The proposed technique was successfully applied to determine the lead ion in the wastewater in ten different stations in the center and district of Al-Hur in Karbala City. The lead ion of the wastewater of the stations under study was also determined directly using inductively coupled plasma-mass spectrometry (ICP-MS) technology comparing its results with the new method and performing the statistical analysis of both methods. The p-value was less than 0.05, showing significant differences between both methods.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141275323","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

Surface Properties of Graphene and Graphene Oxide Aerogels for Energy Storage Applications 用于储能应用的石墨烯和氧化石墨烯气凝胶的表面特性

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI: 10.22146/ijc.89639

Rasha Shakir Mahmood, Dhiaa Hadi Hussian

{"title":"Surface Properties of Graphene and Graphene Oxide Aerogels for Energy Storage Applications","authors":"Rasha Shakir Mahmood, Dhiaa Hadi Hussian","doi":"10.22146/ijc.89639","DOIUrl":"https://doi.org/10.22146/ijc.89639","url":null,"abstract":"This review is mainly on the relevance of graphene aerogels for energy storage systems highlighting their distinct properties and applications. Today, electronic devices such as smartphones, laptops, and other electrical appliances have become the axe of our daily lives. As a result, electrical energy is required for these devices. Despite the discovery of renewable energy sources as an alternative to fossil fuels, the construction of energy storage systems is still necessary to store energy. Lithium-ion batteries and supercapacitors are considered essential systems for this purpose and have witnessed tremendous development in recent years. The efficiency of these systems depends on the structure of the materials used in their formation. Graphene oxide and graphene aerogel materials improve the properties of energy storage systems in terms of stability of charging and discharging cycles, longevity, and reduction of combustion incidents resulting from ordinary compounds. However, the development of graphene aerogels faces challenges in improving their mechanical properties, the cost of their preparation, and their high agglomeration ability in solvents. Therefore, intensive efforts are needed to develop these materials for a new revolution in energy storage.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141274773","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