Journal of the Indian Chemical Society最新文献

{"title":"Synergistic insights into rare earth element affinity with unburned carbon in coal ash: A DFT mechanistic exploration","authors":"Mohd Danish Khan ,&nbsp;Sonam Shakya ,&nbsp;Tuan Lai Quang ,&nbsp;YoungJu Song ,&nbsp;Ji Whan Ahn","doi":"10.1016/j.jics.2025.101929","DOIUrl":"10.1016/j.jics.2025.101929","url":null,"abstract":"<div><div>Rare earth elements (REEs) are vital but scarce, requiring alternative recovery methods. This study examines REE interaction with unburned carbon in coal fly ash (CFA). Flotation experiments isolated ∼24 wt% unburned carbon, enriched with heavy and critical REEs (HREEs and CREEs). Advanced analyses (XRF, XRD, TEM) confirmed 323 ppm REEs in the carbon matrix. Density functional theory (DFT) simulations revealed selective REE adsorption on carbon's functional groups. Findings suggest unburned carbon's strong affinity for HREEs and CREEs, presenting a sustainable REE recovery route from CFA and enhancing its role in resource recycling and environmental remediation.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101929"},"PeriodicalIF":3.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653270","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}

{"title":"Decolorization of Rhodamine B using activated sodium percarbonate by ultrasound and MgMn2O4 spinel nanoparticles","authors":"Yurii Sukhatskiy ,&nbsp;Mariana Shepida ,&nbsp;Martyn Sozanskyi ,&nbsp;Zenovii Znak ,&nbsp;Parag Ratnakar Gogate","doi":"10.1016/j.jics.2025.101918","DOIUrl":"10.1016/j.jics.2025.101918","url":null,"abstract":"<div><div>The current work demonstrates the effectiveness of the simultaneous activation of sodium percarbonate (SPC) by ultrasound (US) and MgMn₂O₄ spinel nanoparticles for the efficient decolorization of the Rhodamine B (Rh B) dye. MgMn₂O₄ spinel nanocatalyst was synthesized using the co-precipitation approach in the presence of ultrasound, followed by subsequent characterization using XRD, SEM, and FTIR analysis. The effect of several factors, such as SPC concentration, pH, catalyst dosage, and specific power of US, on the decolorization of Rh B has been studied. Experimental results demonstrated that Rh B (initial concentration in aqueous solution – 0.209 mM) could be efficiently decolorized (98 % in 60 min) by the US/MgMn₂O₄/SPC system. The best conditions for the Rh B decolorization were obtained as pH of 3, the initial SPC concentration of 5 mM, catalyst loading of 1.0 g/L, and the specific power of US of 51 W/L. Scavenging experiments elucidated that HO^• and ¹O₂ played a dominant role in the decolorization of Rh B using the US/MgMn₂O₄/SPC process. The synthesized MgMn₂O₄ spinel nanocatalyst showed excellent reusability for recycle (92.3 % removal of Rh B after four cycles).</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101918"},"PeriodicalIF":3.2,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653269","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}

{"title":"Novel bimetallic organic frameworks of Cu/Ni-BTC for enhanced remediation of methylene blue from aqueous medium","authors":"Saima Momin,&nbsp;Tahira Mahmood,&nbsp;Abid Ullah,&nbsp;Rahmat Ali","doi":"10.1016/j.jics.2025.101905","DOIUrl":"10.1016/j.jics.2025.101905","url":null,"abstract":"<div><div>Cu/Ni-BTC bimetal-organic frameworks was prepared hydrothermally and used for methylene blue (MB) removal from wastewater. Prepared Cu/Ni-BTC was analyzed through different techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDX), Thermogravimetric analysis (TGA) and point of zero charge (pH_PZC). Different parameters such as pH, reaction time, dose of Cu/Ni-BTC, initial dye concentration, and temperature were studied. It was examined that increasing time and dosage of Cu/Ni-BTC, adsorption and photocatalytic degradation also increased. The interpretation of kinetic data of sorption is in agreement with pseudo second order while equilibrium isotherm data agreed well with Langmuir model and highest removal capacity was 392 mg g⁻¹. Moreover, intraparticle diffusion recommended that adsorption process follow both pore and film diffusion phenomenon. Thermodynamic factors such as ΔG°, ΔH° and ΔS° confirmed that sorption was exothermic and spontaneous in nature. Furthermore, active species in photo-degradation process were ^•O₂-, ^•OH and h⁺. Desorption study suggested that adsorbent can be efficiently used up to five cycles. Because of highly removal efficiency, prepared MOF can be used as a proficient material for dyes removal.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101905"},"PeriodicalIF":3.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653365","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}

{"title":"Effect of hexanal nano-fiber matrix on quality parameters of tomato fruits during storage","authors":"Kwaghgba Elijah Gbabe ,&nbsp;Olasubomi Akinnola Akinyera ,&nbsp;Imoleayo Gabriel Adarabierin ,&nbsp;Owoicho John Onuh ,&nbsp;Kizhaeral Sevathapandian Subramanian ,&nbsp;Francis Zashachia Igbua ,&nbsp;Ndi Betrand Bongjo ,&nbsp;Michael Ayodele Omodara","doi":"10.1016/j.jics.2025.101912","DOIUrl":"10.1016/j.jics.2025.101912","url":null,"abstract":"<div><div>The study introduced an innovative hexanal nano-fiber matrix created through electrospinning, aimed at enhancing the storage life of tomato fruits in noncontact packaging applications. Hexanal is highly volatile and easily evaporates on the fruit surface during post-harvest treatment. Electrospinning was done using polyvinyl alcohol and β-cyclodextrin moisture sensitivity polymers for the encapsulation of hexanal molecules<strong>.</strong> The nano-fibre matrix was created using a mix ratio of 1:2:5 by weight. Gas chromatography revealed the continuous diffusion of hexanal vapour from the nano-fiber. The scanning electron microscope demonstrated the presence of nanowires with diameters varying between 195.5 and 345.8 nm. The hexanal particles were depicted in the images obtained from the transmission electron microscope, which revealed individual fibre diameters ranging from 151.2 to 244 nm. The characteristic peak at 1692 cm⁻¹ verified the successful integration of hexanal into the nanofiber matrix, as shown by the FT-IR spectrum. Under ambient conditions, the shelf life of commercially mature green tomato fruits was increased to 32 days with the nanofiber treatment, compared to 18 days for the control fruits. The fruits that were treated exhibited superior quality characteristics, like reduced physiological weight loss, lower percentage of decay, and enhanced firmness along with improved colour. Consequently, it may serve as a reliable solution for numerous African nations where the availability of electricity for operating cold storage facilities, particularly in rural regions, is insufficient. This may play a significant role in enhancing food and nutrition security in tropical nations.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101912"},"PeriodicalIF":3.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663457","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}

{"title":"Enhanced electrochemical performance and stability of biomass-derived activated carbon for supercapacitor applications","authors":"El Houssaine Benaddi ,&nbsp;My Rachid Laamari ,&nbsp;Aziz Boutouil","doi":"10.1016/j.jics.2025.101927","DOIUrl":"10.1016/j.jics.2025.101927","url":null,"abstract":"<div><div>This study explores the synthesis of porous activated carbons (ACs) derived from the Calotropis procera fruit (CPF) using two activators, KOH and NaOH (CPF-AC_(KOH) and CPF-AC_(NaOH)), to produce low-cost and advanced electrode materials for high-performance supercapacitors. The findings indicate that CPF-AC_(KOH) and CPF-AC_(NaOH) form the best porous structures and combine micropores and mesopores. The Activation with NaOH favors mesopore formation more strongly than Activation with KOH. The CPF-AC_(KOH) exhibits the best specific surface area (2953.13 m² g⁻¹) with higher graphitization than that of CPF-AC_(NaOH). In a three-electrode system, CPF-AC _(KOH) and CPF-AC_(NaOH) demonstrate gravimetric-specific-capacitances of 341 and 286 F g⁻¹ at a current density of 1 A g⁻¹. CPF-AC_(KOH) at 0.1 A g⁻¹ reaches a peak gravimetric-specific-capacitance of 438 F g⁻¹, retaining 288 F g⁻¹ at 10 A g⁻¹. In a two-electrode, the CPF-AC_(KOH) demonstrates a high specific-energy of 41.1 Wh kg⁻¹ at a specific-power of 2489 W kg⁻¹. The efficient charge/discharge properties, low internal resistance, and powerful cycle stability, retaining 82 % of its capacitance after 10000 cycles at 5 A g⁻¹, highlight CPF-AC_(KOH) as a sustainable and environmentally friendly candidate for advanced supercapacitor applications and part of advancing energy-storage technologies.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101927"},"PeriodicalIF":3.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634261","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}

{"title":"Unleashing the potential of bifunctional electrocatalyst: Designing efficient Ni@MnS/SGCN nanocomposite for clean energy conversion","authors":"Saba Shahzadi Bashir ,&nbsp;Sammia Shahid ,&nbsp;Sana Mansoor ,&nbsp;Momna Qayyum ,&nbsp;Mohsin Javed ,&nbsp;Muhammad Faizan ,&nbsp;Owais Raza ,&nbsp;Syed Kashif Ali ,&nbsp;M. Alhabradi ,&nbsp;M. Alruwaili ,&nbsp;Ali Bahadur ,&nbsp;Shahid Iqbal ,&nbsp;Sajid Mahmood ,&nbsp;Meznah M. Alanazi","doi":"10.1016/j.jics.2025.101925","DOIUrl":"10.1016/j.jics.2025.101925","url":null,"abstract":"<div><div>The two main problems facing the world now are global warming and fossil fuel depletion. Using hydrogen as a substitute energy source is one way to potentially solve these issues. A sustainable, renewable, and environmentally beneficial energy source is electrochemical water splitting among the various energy routes available. The difficult problem is to create a strong, affordable, and effective dual-purpose electrocatalyst that increases electrochemical water splitting. Because of their strong and excellent electrical conductivity, transition metal sulfides are utilized in electrochemical energy storage systems. MnS is employed as the electrocatalyst in this work initially, and its electrocatalytic properties are then increased by two methods: doping and synthesis of composite material. The facile and simple co-precipitation method is employed to create a series of Ni-doped MnS with different percentages of the weight of Nickel (10 %, 8 %, 6 %, 4 %, and 2 wt %) and 6 % Ni@MnS composite material with varied weight percentages of SGCN (10, 30, 50, 70, and 90 % wt. %). The electrocatalyst is characterized using XRD, SEM and EDX to examine its composition, size, and structure. Electro-catalysts are employed as working electrodes and are placed using the drop-casting method on the FTO glass. Doping and the production of composite materials increase the activity of electrochemical water splitting, as demonstrated by EIS, CV, LSV, and chronopotentiometry. 70 % Ni@MnS/SGCN produces the optimum electrochemical water splitting activity when used with a lower overpotential of 380 mV for oxygen evolution reaction (OER) and 650 mV for hydrogen evolution reaction (HER) to attain 10 mA/cm² current density. The results thus indicate that 70 % composite material could potentially have been employed as an electrocatalyst in the process of water splitting.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101925"},"PeriodicalIF":3.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613881","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}

{"title":"Estimation of the composition of nitro-aci forms of nitromethane tautomerism by refrachor (F) an old tool for a new contemporary observation","authors":"Sanjeev Rachuru ,&nbsp;Jagannadham Vandanapu","doi":"10.1016/j.jics.2025.101922","DOIUrl":"10.1016/j.jics.2025.101922","url":null,"abstract":"<div><div>Compounds containing methylene group (−CH₂−) and bonded directly to electron withdrawing groups such as –NO₂ and –COCH₃ etc., are called active methylene compounds. The methylene group is active and acidic. These compounds can undergo tautomerism giving acid form. The specific and simplest example is nitromethane. Nitromethane undergoes 1,3−protropy tautomerism giving rise to aciform of nitromethane (CH₃–NO₂ <span><math><mrow><mo>⇌</mo></mrow></math></span> CH₂<img>NO₂H). In the present work we have tried to calculate the percentage composition of the nitroform and the aciform in the tautomeric mixture of nitromethane using a seventy-five-year-old tool called the <strong>refrachor (<em>F</em>)</strong>.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101922"},"PeriodicalIF":3.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665749","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}

{"title":"Cr–V substituted nanospinel oxides as efficient electrocatalysts for hydrogen evolution reaction","authors":"Refah S. Alkhaldi ,&nbsp;M.A. Almessiere ,&nbsp;B. Abuobied ,&nbsp;A. Baykal ,&nbsp;E. Cevik ,&nbsp;M.A. Gondal ,&nbsp;S.E. Shirsath ,&nbsp;A. Manikandan","doi":"10.1016/j.jics.2025.101923","DOIUrl":"10.1016/j.jics.2025.101923","url":null,"abstract":"<div><div>In this work, a novel Co_0.5Ni_0.5Cr_xV_2-xO₄ (x ≤ 0.04) electronanocatalyst was prepared using a facile hydrothermal approach for the first time. Impressively, the Co_0.5Ni_0.5Cr_xV_2-xO₄ electronanocatalyst greatly regulates electron reconfiguration by varying the composition ratio and enhances the reaction kinetics. It also ensures superior hydrogen adsorption energy and an improved number of catalytic species in the material. Profiting from the merits described above, the configured Co_0.5Ni_0.5Cr_xV_2-xO₄ (x = 0.02) electronanocatalyst has showed exceptional HER activity and produced an overpotential of 227 mV at −10 mA/cm² with a small Tafel value of 86 mV/dec in a 0.5 M H₂SO₄. The catalyst's durability is maintained at a steady current rate of 10 mA cm⁻² even after 18h of operation. The overall experimental findings showcase a feasible approach for exploring the potential of the nonprecious metal-based Co_0.5Ni_0.5Cr_xV_2-xO₄ (x ≤ 0.04) elecronanocatalyst towards alkaline HER.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101923"},"PeriodicalIF":3.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653267","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}

{"title":"HPLC-UV method for Crizotinib and its Impurities: Integration of AQbD and green chemistry principles","authors":"Belal Muneeb Kanaan ,&nbsp;Ayman M. Algohary ,&nbsp;Mona H. Alhalafi ,&nbsp;Ahmed M. Ibrahim","doi":"10.1016/j.jics.2025.101915","DOIUrl":"10.1016/j.jics.2025.101915","url":null,"abstract":"<div><div>Crizotinib (CZB) demonstrates therapeutic efficacy in the treatment of ALK-positive non-small cell lung cancer (NSCLC). This study reports the first development of a stability-indicating HPLC-UV method for CZB and its related impurities using an integrated Analytical Quality by Design (AQbD) and green chemistry. Separation was accomplished using a ZORBAX Eclipse XDB - C18 column with a stepped gradient elution system, employing a mobile phase consisting of 0.02 M potassium phosphate buffer (pH adjusted to 7.5) and acetonitrile. The proposed HPLC-UV method utilized a 40 °C column, a mobile phase flow rate of 0.9 mL/min, and UV detection set to 215 nm. Forced degradation studies confirmed the method stability-indicating properties, which revealed no interference from degradation products in the accurate determination of CZB and its related impurities. Acceptable accuracy and precision were confirmed across the concentration ranges by validation employing accuracy profiles. The ecological footprint of the technique was appraised using established greenness metrics, while the RGBfast algorithm were used to gauge its overall sustainability and practicality. Also, the method has attained a well-rounded level of proficiency through Efficient Valid Green (EVG) framework. This method provided a reliable and environmentally sound approach for quality control analysis of CZB in both bulk materials and pharmaceutical preparations, fulfilling the demand for advanced analytical methodologies for this important therapeutic compound.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101915"},"PeriodicalIF":3.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604717","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}

{"title":"Efficient C–H selenation of heterocycles using MWCNTs/MNPs-Triazine/TMA-CuI nanocomposite as sustainable catalyst","authors":"Reza Mohammadi ,&nbsp;Suranjana V. Mayani ,&nbsp;Abdulqader Faris Abdulqader ,&nbsp;Suhas Ballal ,&nbsp;Abhayveer Singh ,&nbsp;Kavitha V ,&nbsp;Kamal Kant Joshi","doi":"10.1016/j.jics.2025.101901","DOIUrl":"10.1016/j.jics.2025.101901","url":null,"abstract":"<div><div>In this study, we present the development of an eco-friendly magnetic nanocatalyst, MWCNTs/MNPs-Triazine/TMA-CuI, to efficiently synthesize heteroaryl selenide derivatives. The catalyst, synthesized by anchoring CuI onto MWCNTs functionalized with magnetic nanoparticles and modified with a triazine-based ligand, enhances dispersion, surface area, and catalytic activity. The catalyst enables a one-pot, three-component reaction involving aryl iodides, potassium selenocyanate (KSeCN), and heterocyclic compounds under mild conditions using glycerol as a green solvent, underscoring the sustainability of the methodology. Characterization techniques confirmed the nanocatalyst's spherical morphology, thermal stability, magnetic recyclability, and copper content. Under optimized conditions, 26 heteroaryl selenide derivatives were synthesized with high yields within 3 h. The catalyst exhibited excellent reusability, maintaining high activity across multiple cycles with minimal efficiency loss. This methodology presents a sustainable alternative by integrating green chemistry principles with efficient metal catalysis and simplified product recovery, providing reassurance about its environmental impact.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101901"},"PeriodicalIF":3.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679893","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}