Journal of the Indian Chemical Society最新文献

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Efficient removal of artificial petroleum fraction from aqueous system by surface modified, superhydrophobic, cum superoleophilic natural betel nut husk fiber 表面改性、超疏水、超亲油天然槟榔壳纤维对水体系中人工石油组分的高效去除
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-01 DOI: 10.1016/j.jics.2025.102365
K. Jeyasubramanian, S. Parani Bramma Nayagi, B. Thangagiri, S. Malathi Devi
{"title":"Efficient removal of artificial petroleum fraction from aqueous system by surface modified, superhydrophobic, cum superoleophilic natural betel nut husk fiber","authors":"K. Jeyasubramanian,&nbsp;S. Parani Bramma Nayagi,&nbsp;B. Thangagiri,&nbsp;S. Malathi Devi","doi":"10.1016/j.jics.2025.102365","DOIUrl":"10.1016/j.jics.2025.102365","url":null,"abstract":"<div><div>A facile strategy adopted to separate petroleum oil dispersed in water using a superoleophilic adsorbent is reported. Normally, superhydrophobic materials are superoleophilic; one such a material was developed using a naturally available betel nut (<em>Areca catechu</em>) husk fiber using copper stearate (CuSt<sub>2</sub>) dissolved in a toluene solution. The copper stearate used in this study was prepared using a wet chemical method. The physical characteristics and surface topography of the fibers with and without low surface energy CuSt<sub>2</sub> were explored using FTIR, XRD, and SEM with EDX. The water contact angle of the fiber after surface modification was measured using water contact angle goniometer as 157.1°. Because of its high water repellency, the superhydrophobic betel nut husk (SHBNH) obviously exhibits superoleophilic nature. Such unparalleled properties of the surface-modified fiber were practically tested against the oil removal from an artificially prepared oil–water mixture obtained by mixing varying amounts of Two-stroke engine oil, popularly called 2T oil, with distilled water. On suspending 0.5 g of SHBNH fiber in a water–oil mixture, oil was absorbed by the SHBNH, leaving pure water as an oil-free liquid. All these quantitative analyses were spectrophotometrically evaluated employing a UV–Vis spectrophotometer. As the colored constituents present in the 2T-oil show a distinct peak in the visible region (513 nm), but they do not show any characteristic peak corresponding to the <em>λ<sub>max</sub></em> = 513 nm, confirming the 100 % removal of SHBNH fiber; such constituents can be used as a better adsorbent for the removal of oil from water in a real-time applications in future.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102365"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aluminum foam-based sandwich composites for high-efficiency removal of reactive blue 19 dye 泡沫铝基夹层复合材料高效去除活性蓝19染料
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.jics.2026.102403
Hany M. Youssef , Ahlem Guesmi , Naoufel Ben Hamadi , Mohammed T. Alotaibi , El-Sayed M. El-Sayed , Mahmoud F. Mubarak
{"title":"Aluminum foam-based sandwich composites for high-efficiency removal of reactive blue 19 dye","authors":"Hany M. Youssef ,&nbsp;Ahlem Guesmi ,&nbsp;Naoufel Ben Hamadi ,&nbsp;Mohammed T. Alotaibi ,&nbsp;El-Sayed M. El-Sayed ,&nbsp;Mahmoud F. Mubarak","doi":"10.1016/j.jics.2026.102403","DOIUrl":"10.1016/j.jics.2026.102403","url":null,"abstract":"<div><div>This study investigated the successful elimination of reactive dyes using sandwich composites incorporating aluminum foam cores. The composites comprised an aluminum foam core surrounded by face sheets composed of carbon fiber-reinforced epoxy matrix. The adsorption mechanism was evaluated based on interactions between dye molecules and the composite surface. Experimental and computational techniques were employed to assess flow characteristics, adsorption efficiency, and environmental impact. Surface morphology was examined using scanning electron microscopy (SEM), while elemental composition was determined using energy-dispersive X-ray spectroscopy (EDS). Functional groups were identified using Fourier-transform infrared spectroscopy (FTIR). Under optimized conditions (initial concentration = 100 mg/L, pH = 7.0, contact time = 30 min), the aluminum foam-based sandwich composite achieved 95 % removal efficiency for Reactive Blue 19 dye. The study systematically analyzed the adsorption performance, pH influence, and sustainability aspects of the composite, providing insight into its potential for practical wastewater treatment applications. The findings contribute to optimizing sandwich composite structures for dye removal and support their applications in sustainable wastewater treatment.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102403"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence laws of jump density on Stefan phase change model of thermal dissociation hydrate 跳跃密度对热解离水合物Stefan相变模型的影响规律
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jics.2026.102418
Mingchuan Li , Shuanshi Fan
{"title":"Influence laws of jump density on Stefan phase change model of thermal dissociation hydrate","authors":"Mingchuan Li ,&nbsp;Shuanshi Fan","doi":"10.1016/j.jics.2026.102418","DOIUrl":"10.1016/j.jics.2026.102418","url":null,"abstract":"<div><div>For a one-dimensional slab hydrate reservoir, a generalized heat-conduction equation with velocity term was built. By solving the uniform divergence equation with a jump density, a Rankine-Hugoniot jump relation in general form was derive in detail. The Stefan's model in cubic form with respect to velocity term coupled at the dissociation interface was established, and the cubic term could often be ignored within the allowable error range of engineering. By substituting mass as a space variable into, and eliminating the velocity term in the heat conduction equation, the Stefan's model with jump density was transformed into a classical Stefan-like's model, and the analytical solution of this model could be obtained successfully. By an example, the influence laws of constant/jump density on the Stefan's model solution were compared and analysed, the temperature distribution and the interface position during the thermal dissociation hydrate were studied. It was discussed that the maximum error due to the jump density was 1.897 %, which was within the allowable error range for engineering applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102418"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigate the designing of deep eutectic solvents and their interaction with Congo red through DFT calculations and MD simulations 通过DFT计算和MD模拟研究深共晶溶剂的设计及其与刚果红的相互作用
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2025-12-26 DOI: 10.1016/j.jics.2025.102383
Ayushi Prajapat , Madhur Babu Singh , Pooja Bhagat , Bakusele Kabane , Prashant Singh
{"title":"Investigate the designing of deep eutectic solvents and their interaction with Congo red through DFT calculations and MD simulations","authors":"Ayushi Prajapat ,&nbsp;Madhur Babu Singh ,&nbsp;Pooja Bhagat ,&nbsp;Bakusele Kabane ,&nbsp;Prashant Singh","doi":"10.1016/j.jics.2025.102383","DOIUrl":"10.1016/j.jics.2025.102383","url":null,"abstract":"<div><div>The release of dyes, including congo red (CR), into water bodies poses a big challenge of water remediation for society and a pressing issue for the academicians and scientists to resolve. Herein, deep eutectic solvents (DES) comprised of choline chloride (ChCl) and ethylene glycol (EG) in different ratios (DES<sub>1</sub> and DES<sub>2</sub>), respectively, have been designed. Further, the interactions of ChCl, DES<sub>1</sub> and DES<sub>2</sub> with the CR are being explored by computational calculations (density functional theory computation and molecular dynamics simulations). The DFT calculations revealed various non-covalent interactions occurring among the IL/DES and high negative binding energies. Further, the comparative affinity of dye towards water and DESs was analyzed by performing the MD simulation in a multiphase system (triphasic and biphasic systems). The relative affinity of the dye in DESs was analyzed by mean square deviation (MSD), Radial Density Function (RDF) and relative concentration analysis. To quantify the interaction between dye and DES, the interaction energy was calculated, which revealed DES<sub>2</sub> as the most suitable for extraction of CR. Further, the DFT calculations for the DES<sub>2</sub>-CR system was performed with a higher level of theory to quantify its non-covalent interactions. Its binding mechanism was analyzed by non-covalent interaction analysis (NCI). The NCI analysis showed delocalization of electrons within the dye molecule as well as between DES and dye molecules. NCI analysis also confirmed the presence of hydrogen bonding, van der Waals and electrostatic interactions among the dye-DES system. Overall, this work supplied a promising and green DES for the binding of CR and its successful removal from wastewater.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102383"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","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 chitosan thiosemicarbazone complexes with nickel, zinc, and Palladium: Enhanced antimicrobial efficacy and potential applications 含镍、锌、钯的壳聚糖硫代氨基脲配合物的合成与表征:增强抗菌效果及其应用前景
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-10 DOI: 10.1016/j.jics.2026.102420
M. Ali , Essam Nageh Sholkamy , Abdulmajeed Abdullah Alayyaf , Muhanna K. AL- Muhanna , Ayman A. abdullgafar , Ahmed S. Alobaidi , Assem barakat
{"title":"Synthesis and characterization of chitosan thiosemicarbazone complexes with nickel, zinc, and Palladium: Enhanced antimicrobial efficacy and potential applications","authors":"M. Ali ,&nbsp;Essam Nageh Sholkamy ,&nbsp;Abdulmajeed Abdullah Alayyaf ,&nbsp;Muhanna K. AL- Muhanna ,&nbsp;Ayman A. abdullgafar ,&nbsp;Ahmed S. Alobaidi ,&nbsp;Assem barakat","doi":"10.1016/j.jics.2026.102420","DOIUrl":"10.1016/j.jics.2026.102420","url":null,"abstract":"<div><div>A series of metal complexes was synthesized using the Schiff base method. In this study, low molecular weight chitosan (CS) was functionalized to produce a novel chitosan thiosemicarbazone pyridine-2-carboxaldehyde by first introducing the thiosemicarbazone group, followed by the addition of pyridine-2-carboxaldehyde to form the Schiff base ligand. This ligand was then used in a one-pot synthesis to produce nickel (Ni), zinc (Zn), and palladium (Pd) complexes. The successful formation of the chitosan thiosemicarbazone pyridine-2-carboxaldehyde ligand and its Ni, Zn, and Pd complexes was confirmed by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and elemental analysis. The thermal stability of these complexes was evaluated through thermogravimetric analysis (TGA), which revealed enhanced stability. The antimicrobial activity of the Ni, Zn, and Pd complexes were tested against various bacterial strains, with the Pd complex demonstrating the highest efficacy. These results revel the potential of these metal complexes, particularly the Pd complex, as promising antimicrobial agents.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102420"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon enriched MgO, NiO, and BaCO3 as novel nanocomposite for facilitated basic red 46 sequestration from contaminated wastewater 富碳MgO、NiO和BaCO3作为新型纳米复合材料促进污染废水中碱性红46的吸附
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-01 DOI: 10.1016/j.jics.2026.102398
Ehab A. Abdelrahman , Mohamed R. Elamin , Reem K. Shah , Nada S. Al-Kadhi
{"title":"Carbon enriched MgO, NiO, and BaCO3 as novel nanocomposite for facilitated basic red 46 sequestration from contaminated wastewater","authors":"Ehab A. Abdelrahman ,&nbsp;Mohamed R. Elamin ,&nbsp;Reem K. Shah ,&nbsp;Nada S. Al-Kadhi","doi":"10.1016/j.jics.2026.102398","DOIUrl":"10.1016/j.jics.2026.102398","url":null,"abstract":"<div><div>Basic red 46 is a cationic azo dye that can cause serious risks to aquatic ecosystems and human health because it is persistent, colored, and potentially toxic even at low levels. In this work, MgO/NiO/BaCO<sub>3</sub>/C nanocomposites, denoted NBM600 and NBM800, were synthesized by a facile Pechini sol–gel route at 600 as well as 800 °C, respectively, for the removal of basic red 46 from contaminated wastewater. XRD patterns confirmed multiphase crystalline MgO, NiO, and BaCO<sub>3</sub> with carbon and showed an increase in average crystallite size from about 65.22 nm for NBM600 to 75.88 nm for NBM800, reflecting enhanced crystallinity at higher temperature. EDX analysis verified the presence of C, O, Mg, Ni, and Ba, with higher C and Ba content in NBM600 and higher Mg and Ni content in NBM800. FE-SEM images revealed irregular porous aggregates for NBM600 and more compact polygonal or hexagonal grains for NBM800, while HR-TEM micrographs showed fine nearly spherical particles for NBM600 and larger faceted particles for NBM800. The maximum uptake capabilities reached 371.75 mg/g concerning NBM600 as well as 310.56 mg/g concerning NBM800. Thermodynamic evaluation indicated that dye sequestration is exothermic, spontaneous, and physical in nature. Also, kinetic and isotherm analyses demonstrated harmony with the pseudo-first-order model as well as Langmuir monolayer adsorption. Besides, both nanocomposites were efficiently regenerated by HCl and reused with only limited loss in performance, and they achieved efficient removal of basic red 46 from real wastewater.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102398"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation and influence of ionic liquid functional group for leaching of yttrium oxide from ion adsorption clay 离子液体官能团对离子吸附粘土中氧化钇浸出的影响及评价
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jics.2026.102419
Shafeeque Ahmed, Abdulhalim Shah Maulud, Muhammad Nawaz, Mohamad Azmi Bustam
{"title":"Evaluation and influence of ionic liquid functional group for leaching of yttrium oxide from ion adsorption clay","authors":"Shafeeque Ahmed,&nbsp;Abdulhalim Shah Maulud,&nbsp;Muhammad Nawaz,&nbsp;Mohamad Azmi Bustam","doi":"10.1016/j.jics.2026.102419","DOIUrl":"10.1016/j.jics.2026.102419","url":null,"abstract":"<div><div>Ion adsorption clay (IAC) serves as a source of rare earth elements. However, their leaching with conventional leaching agent using ammonium sulfate exhibits the challenges of ammonia nitrogen pollution. The ionic liquids (ILs) have emerged as green and efficient alternatives for the recovery of rare earth elements. In this study potential ionic liquids and the influence of functional groups have been explored using conductor-like screening model for real solvents (COSMO-RS) for leaching of yttrium oxide. A total of 437 ILs combination were screened, and their interaction with yttrium oxide was evaluated using the activity coefficient at infinite dilution; subsequently, their hydrophobicity, ecotoxicity, and influence of functional groups were investigated. The molecular interactions between ILs and yttrium oxide were examined from sigma surface, sigma profile, and sigma potential parameters. The findings of the study show that betainium-based ILs have more interactions as compared to cholinium-based ILs, and fluoride-based anions such as bis(trifluoromethyl sulfonyl)imide and tetrafluoroborate exhibit the stronger interaction with yttrium oxide compared to halide and amino acid-based anions. Additionally, the alkyl chain length of the cation, family, symmetry, and functional group have been investigated, suggesting a decrease in interaction with an increase in the alkyl chain length of the cation. These insights highlight the potential of ILs in more sustainable and efficient leaching of yttrium oxide from ion adsorption clay.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102419"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of UPLC-DAD and GC×GC-ToFMS for phenolic and volatile compounds profiling of Campomanesia sessiliflora (O.Berg) Mattos infusion: Antioxidant and antimicrobial insights UPLC-DAD和GC×GC-ToFMS应用于无核木芋注射液中酚类和挥发性化合物的分析:抗氧化和抗菌的见解
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-11 DOI: 10.1016/j.jics.2026.102405
Thiago Luis Aguayo de Castro , João Víctor de Andrade dos Santos , Cátia Martins , Sílvia M. Rocha , Kelly Mari Pires de Oliveira , Gilberto José de Arruda , Claudia Andrea Lima Cardoso
{"title":"Application of UPLC-DAD and GC×GC-ToFMS for phenolic and volatile compounds profiling of Campomanesia sessiliflora (O.Berg) Mattos infusion: Antioxidant and antimicrobial insights","authors":"Thiago Luis Aguayo de Castro ,&nbsp;João Víctor de Andrade dos Santos ,&nbsp;Cátia Martins ,&nbsp;Sílvia M. Rocha ,&nbsp;Kelly Mari Pires de Oliveira ,&nbsp;Gilberto José de Arruda ,&nbsp;Claudia Andrea Lima Cardoso","doi":"10.1016/j.jics.2026.102405","DOIUrl":"10.1016/j.jics.2026.102405","url":null,"abstract":"<div><div>This study presents an advanced analytical characterization of <em>Campomanesia sessiliflora</em> (O. Berg) Mattos leaf infusion, with an emphasis on phenolic and volatile compounds and their associated biological activities. Ultra-performance liquid chromatography with diode array detection (UPLC-DAD) was used to identify syringic acid (24.03 ± 0.60 mg 200 mL<sup>−1</sup>) and gallic acid (69.19 ± 0.16 mg 200 mL<sup>−1</sup>). The volatile organic composition was elucidated through comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC-ToFMS), revealing 87 tentatively identified volatiles, primarily oxygenated sesquiterpenes, including eucalyptol, α-terpineol, and β-copaen-4α-ol. The combined use of UPLC-DAD and GC × GC-ToFMS allowed a detailed chemo-profiling of the infusion, supporting its functional potential. The extract exhibited notable antioxidant capacity, as evidenced by an electrochemical index of 13.59, and antimicrobial activity against <em>Candida species</em> and Gram-positive bacteria. These findings highlight the suitability of <em>C. sessiliflora</em> infusion as a natural source of bioactive compounds with potential application in clean-label food products and natural preservative systems.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102405"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation of Zr–Hf from local Zr(SO4)3−2 anion solution feed using the CAC prototype filled with Dowex-1X8 resin 使用填充Dowex-1X8树脂的CAC原型从局部Zr(SO4)3−2阴离子溶液进料中分离Zr - hf
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-11 DOI: 10.1016/j.jics.2026.102417
Herry Poernomo , Muzakky , Yayat Iman Supriyatna , Nur Dewi Pusporini
{"title":"Separation of Zr–Hf from local Zr(SO4)3−2 anion solution feed using the CAC prototype filled with Dowex-1X8 resin","authors":"Herry Poernomo ,&nbsp;Muzakky ,&nbsp;Yayat Iman Supriyatna ,&nbsp;Nur Dewi Pusporini","doi":"10.1016/j.jics.2026.102417","DOIUrl":"10.1016/j.jics.2026.102417","url":null,"abstract":"<div><div>The Zr–Hf separation process is carried out using a Continuous Annular Chromatography (CAC) prototype filled with Dowex-1X8 resin and a solution in the form of the local Zr(SO<sub>4</sub>)<sub>3</sub><sup>−2</sup> anion containing Zr = 91,570 ppm and Hf of 5320 ppm. The experimental parameters were the annular-containing resin's rotation speed and the elution time in stages using 2 M and 4 M H<sub>2</sub>SO<sub>4</sub> as eluents. The results of the Zr–Hf separation study with CAC prototype showed that at a rotational speed of 20 rpm, elution with 4 M H<sub>2</sub>SO<sub>4</sub> for 4 h obtained the average calculation results on the 18 eluate fraction numbers with a concentration of Zr = 31,070 ppm containing Hf = 10.72 ppm, Hf removal efficiency is 99.79 %, Hf purification factor is 0.0050, and Zr purification factor is 199.30.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102417"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sorption-enhanced chemical looping reforming (SE-CLR) of ethanol, glycerol and butanol over hydrotalcite-based multifunctional materials for improved hydrogen production 乙醇、甘油和丁醇在水滑石基多功能材料上的吸附强化化学环重整(SE-CLR)以提高产氢率
IF 3.4 4区 化学
Journal of the Indian Chemical Society Pub Date : 2026-02-01 Epub Date: 2026-01-03 DOI: 10.1016/j.jics.2026.102400
Sheraj Z. Sayyed, Prakash D. Vaidya
{"title":"Sorption-enhanced chemical looping reforming (SE-CLR) of ethanol, glycerol and butanol over hydrotalcite-based multifunctional materials for improved hydrogen production","authors":"Sheraj Z. Sayyed,&nbsp;Prakash D. Vaidya","doi":"10.1016/j.jics.2026.102400","DOIUrl":"10.1016/j.jics.2026.102400","url":null,"abstract":"<div><div>Carbon dioxide sorption-enhanced chemical looping reforming (SE-CLR) technology provides a candidate route for hydrogen (H<sub>2</sub>) generation from bio-oxygenates through a two-step redox process. In this work, SE-CLR of ethanol, glycerol and butanol was investigated in a fixed bed reactor using the oxygen carriers NiO–CaO-HTlc (NCH) and Ce–NiO–CaO-HTlc (or CNCH, here, HTlc denotes hydrotalcite-like materials). Oxygen carriers (OC) were synthesized using impregnation method and characterized using BET method (or Brunauer-Emmett-Teller method), XRD (X-ray diffraction) and SEM-EDX (scanning electron microscopy-energy dispersive X-ray spectroscopy). The reduction stage of the CLR process was performed using 2 g OC between 673 and 873 K. Weight hourly space velocity (WHSV) was varied in the 0.44–1.79 mL/g-min range. For the reaction of ethanol over NCH carrier, H<sub>2</sub> formation rate (0.48 mmol/g-min) was maximized during reduction at T = 773 K and WHSV = 1.79 mL/g-min. A dead time was initially observed during the SE-CLR tests. Pre-breakthough periods for NCH (15 min) and CNCH (30 min) were observed; thereafter, the presence of CO<sub>2</sub> in the product was evident. The highest concentration of H<sub>2</sub> during the reactions of glycerol, butanol and ethanol over CNCH was 26.2, 21.7 and 18.6 %; correspondingly, the highest CO<sub>2</sub> content of the product was 3.7, 4.4 and 2.3 %. Traces of methane were detected in the product. The oxidation stage yielded a maximum of 4.1 % CO<sub>2</sub> during SE-CLR of glycerol. CNCH was successfully tested for 18 redox cycles. On an average, H<sub>2</sub> and CO<sub>2</sub> formation rates during reduction were 0.43 and 0.08 mmol/g-min. Clearly, the outcomes suggested that the application of the chosen materials for SE-CLR of bio-oxygenates was encouraging.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102400"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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