Journal of the Indian Chemical Society最新文献

{"title":"AV2O6 (A = Zn, Ca, Mg) and NaBH4 - Reduced AV2O6: A Comparative study of structural, optical, and photocatalytic insights for Methylene blue degradation","authors":"Mittal Bathwar,&nbsp;R. Vijayaraghavan","doi":"10.1016/j.jics.2025.101965","DOIUrl":"10.1016/j.jics.2025.101965","url":null,"abstract":"<div><div>In this study, we present findings on the photocatalytic degradation of methylene blue (MB) by AV₂O₆ (A = Zn, Ca, Mg) and sodium borohydride reduced AV₂O₆ (A = Zn, Ca, Mg) under both visible light and sunlight. AV₂O₆ compounds were synthesized via a solid-state method, and their morphology, electronic structure, and optical properties were examined using various characterization techniques. The reduced form of AV₂O₆, referred to as R-AV₂O₆ (A = Zn, Ca, Mg), exhibits superior photocatalytic performance compared to the original AV₂O₆ materials, attributed to improved charge carrier separation. X-ray diffraction (XRD) analysis confirmed the formation of a single-phase structure for all AV₂O₆ materials. Field emission scanning electron microscopy (FESEM) revealed particle sizes in the range of 2.5–2.8 μm, 1.1–1.4 μm, and 0.8–1.1 μm for ZnV₂O₆, CaV₂O₆, and MgV₂O₆, respectively. Analysis via UV–Vis DRS explained that the bandgap values for AV₂O₆ varied between 2.15 and 2.64 eV and for R-AV₂O₆ varied between 1.78 and 2.52 eV. R-AV₂O₆ (A = Zn, Ca, Mg) phases demonstrate a significantly higher degradation rate of MB compared to the individual AV₂O₆ components. Potential degradation pathways for MB were proposed based on high-resolution mass spectrometry (HRMS) analysis. Importantly, this research marks the first report on the photocatalytic application of MgV₂O₆ and reduced AV₂O₆ (A = Zn, Ca, Mg) materials for MB degradation, establishing a new class of efficient visible and sunlight active photocatalysts.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101965"},"PeriodicalIF":3.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686745","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":"Cost-effective zinc powder utilization via weak-acid activation: Industrial-scale optimization for enhanced efficiency in hydrometallurgical zinc purification","authors":"Wen Li,&nbsp;Chen Yang,&nbsp;Chunlong Yang,&nbsp;Jigao He,&nbsp;Xinzhi Zhang,&nbsp;Xuegui Yang,&nbsp;Chunping He,&nbsp;Runchun He,&nbsp;Yuan Gao","doi":"10.1016/j.jics.2025.101974","DOIUrl":"10.1016/j.jics.2025.101974","url":null,"abstract":"<div><div>Zinc hydrometallurgical purification faces critical challenges in balancing zinc powder utilization efficiency with operational safety due to surface passivation and hazardous byproduct generation. A weak-acid activation strategy optimizes industrial-scale purification processes by selectively dissolving zinc oxide (ZnO) passivation layers while suppressing excessive zinc corrosion. By precisely regulating pH (3.8–4.2) through controlled electrolytic spent acid addition during secondary cadmium removal, the process achieves a 55.36 % reduction in ZnO surface content. Dynamic pH adjustment via a Distributed Control System (DCS) stabilizes arsenic hydride (AsH₃) concentrations below detection limits (&lt;0.02 ppm) and reduces zinc powder consumption to 42.2 kg/t-Zn, marking a 23.96 % improvement over conventional methods. The process achieves exceptional impurity removal efficiencies of 99.96 % for Cd and 85.02 % for Co, effectively purifying zinc sulfate solutions to facilitate subsequent zinc electrolysis. Industrial validation over 780 days confirms enhanced operational stability, with zinc utilization reaching 94.93 %. The strategy eliminates toxic gas risks, minimizes slag generation, and establishes an economically viable paradigm for sustainable zinc production.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101974"},"PeriodicalIF":3.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702436","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":"Superior photocatalytic degradation of highly photostable R6G dye catalyzed with CuO/ZB-CdS binary heterostructure: catalyst dosage optimization and recyclability for wastewater remediation","authors":"Chan Kok Sheng,&nbsp;Nor Azlia Aziz","doi":"10.1016/j.jics.2025.101961","DOIUrl":"10.1016/j.jics.2025.101961","url":null,"abstract":"<div><div>Cadmium sulphide (CdS) is extensively used as a catalyst for various organic or inorganic pollutant decomposition, heavy metal adsorption, and hydrogen evolution. Continuous efforts are needed to improve its utility by integrating it with appropriate functional materials, such as copper oxide (CuO) with a reduced bandgap that facilitates the charge carrier transition. In this work, copper oxide (CuO) and zinc blende CdS (ZB-CdS) were combined to create a CuO/ZB-CdS binary photocatalyst by a precipitation-impregnation approach. The catalyst dosage was raised to effectively degrade a photostable rhodamine 6G (R6G) dye as a pollutant model under ultraviolet (UV) irradiation. The experimental analysis of XRD, EDS and FTIR confirms the presence of CuO and ZB-CdS in the binary heterostructure. SEM analysis indicates a homogeneous distribution and close interfacial contact of CdS and CuO by preserving their respective morphologies. Absorbance spectra demonstrate a broader band with increased intensity, coupled with bandgap widening, thereby confirming an effective creation and separation of charge carriers in CuO/ZB-CdS. The greatest degradation efficiency accomplished for CuO/ZB-CdS is 94.52 % with a kinetic rate constant of 1.139 × 10⁻² min⁻¹ (R² ≈ 0.913). CuO/ZB-CdS demonstrates a significant breakdown capability after three consecutive recycling cycles, indicating that it might serve as an essential catalyst for future wastewater remediation of diverse hazardous contaminants.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101961"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679785","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":"Spectrophotometric analysis of the degradation products of carmoisine azo dye after removing from aqueous solutions","authors":"Lamia L.G. Al-mahamad,&nbsp;Muntadher M. Alwan Almijbilee","doi":"10.1016/j.jics.2025.101950","DOIUrl":"10.1016/j.jics.2025.101950","url":null,"abstract":"<div><div>In this work, the removal of carmoisine dye (E122) from aqueous solutions by adsorption on alumina (Al₂O₃) as an active adsorbent and using ascorbic acid as a catalyst, followed by analysis of the degradation products of the removed dye, has been investigated spectrophotometrically. The obtained data showed that using ascorbic acid as a strong reducing agent can accelerate the adsorption process. The impact of different significant factors, including adsorbent dosage, dye concentration, contact time, pH of the solution, and effect of temperature, was carried out. The maximum adsorption capacity (qmax) of carmoisine dye was found to be 97 mg g⁻¹. In addition, the degradation products of carmoisine dye were investigated by measuring the absorption using UV–visible spectroscopy and FTIR technique. The method can be applied successfully in waste water treatment and food industries.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101950"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686635","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 removal of nickel ions from aqueous solutions using dicalcium phosphate Dihydrate: Synthesis and valorization into trinickel phosphate octahydrate","authors":"Brahim Lizoul ,&nbsp;El Mokhtar El Hafidi ,&nbsp;Abdelmalek Matine ,&nbsp;Abdelhadi Mortadi ,&nbsp;Ali Sbai ,&nbsp;Said Kounbach ,&nbsp;Zouhair Lakbaibi","doi":"10.1016/j.jics.2025.101970","DOIUrl":"10.1016/j.jics.2025.101970","url":null,"abstract":"<div><div>Wastewater contaminated with nickel poses a significant threat to the ecosystem due to its toxicity and bioaccumulation in living organisms. This work explores the removal of nickel ions from aqueous solutions through the formation of trinickel phosphate octahydrate (Ni₃(PO₄)₂.8H₂O) using dicalcium phosphate dihydrate (DCPD). The experimental method adopted consist to introduce DCPD into aqueous solutions of Ni²⁺ at room temperature and stirred for different durations. The X-ray diffraction, Infrared Spectroscopy, Differential thermal and thermogravimetric analysis, Scanning Electron Microscopy coupled with X-ray Energy Dispersive Spectroscopy, X-ray photoelectron spectroscopy X, Inductively Coupled Plasma and Impedance Spectroscopy were employed. The results indicate that DCPD exhibits a sorption capacity of 293.467 mg/g for Ni²⁺, while the recovered phosphates are crystallized into (Ni₃(PO₄)₂.8H₂O). The removal mechanism occurs in two distinct stages. The first stage, for a processing time of less than 1200 min, involves an ion exchange between nickel ions in the solution and calcium ions in the phosphate, achieving a maximum exchange of 25 %. The second stage, occurring between 1200 and 8740 min, entails the dissolution of the intermediate precipitated phosphate (Ca_0.75Ni_0.25HPO₄.2H₂O) and the concurrent formation of Ca_3-xNi_x(PO₄)₂.8H₂O. This stage culminates in a second ion exchange process, leading to the formation of (Ni₃(PO₄)₂.8H₂O). Impedance spectroscopy results further confirm the structural transformation by revealing a two-step electrochemical response. The Nyquist and Bode plots show a transition from surface adsorption at high frequencies to diffusion-controlled ion incorporation at lower frequencies. Electrical circuit modeling highlights the progressive charge transfer and conduction evolution, correlating with the formation of a stable nickel phosphate phase. The final product exhibits high grain boundary resistance, indicating a dense and well-structured material with potential applications in electrochemical systems.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101970"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686634","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":"Hydrothermal synthesis of Co3O4@soybean-derived carbon for sensitive electrochemical detection of chloramphenicol in food products","authors":"Sujeet Pandey,&nbsp;Vikram Rathour,&nbsp;Smita Singh,&nbsp;Varsha Singh,&nbsp;Ananya Tiwari,&nbsp;Shalinee Dubey,&nbsp;Vellaichamy Ganesan","doi":"10.1016/j.jics.2025.101964","DOIUrl":"10.1016/j.jics.2025.101964","url":null,"abstract":"<div><div>This study reports the development of an electrochemical sensing platform for the precise detection of chloramphenicol (CMP). The sensor is based on cobalt oxide (Co₃O₄) incorporated into soybean-derived carbon (Co₃O₄@soya-C), synthesized <em>via</em> a hydrothermal method. CMP is a broad-spectrum antibiotic commonly used to treat infections such as salmonellosis and typhoid fever. However, its presence in animal-derived food products poses potential health risks to consumers, highlighting the need for effective monitoring of CMP levels in food. The formation of the Co₃O₄@soya-C nanocomposite was confirmed using FT-IR, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, and scanning electron microscopy. Glassy carbon electrodes modified with Co₃O₄@soya-C electrocatalytically reduce CMP, enabling its sensitive detection through cyclic voltammetry and amperometry. The sensor exhibits a sensitivity of 0.271 μA/μMcm² and a limit of detection of 0.2 μM. Furthermore, the sensing platform is successfully applied to detect CMP in a real sample, specifically a milk product.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101964"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702437","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":"Synthesis of lapatinib using a novel, inexpensive, and environmentally friendly approach","authors":"Vandanaben B. Sompura ,&nbsp;Rizwan Y. Gumrah ,&nbsp;Naresh R. Kiri ,&nbsp;Tarunkumar N. Akhaja ,&nbsp;Tushar R. Sutariya ,&nbsp;Keyurkumar A. Kamani","doi":"10.1016/j.jics.2025.101967","DOIUrl":"10.1016/j.jics.2025.101967","url":null,"abstract":"<div><div>A novel and environmentally benign synthetic route for the oral breast cancer drug lapatinib is presented. Unlike conventional methods that rely extensively on organic solvents, the proposed approach predominantly employs water and recycled water as reaction media, significantly reducing the environmental footprint. The synthesis is streamlined into three main steps, enhancing cost-effectiveness and process efficiency. In a fourth step, lapatinib is converted into its ditosylate salt to improve aqueous solubility. All intermediates and final products were thoroughly characterized using IR, ¹H NMR, ¹³C NMR, and mass spectrometry. To assess the sustainability of the synthetic route, green chemistry metrics—including E-factor, atom economy, reaction mass efficiency (RME), optimum efficiency (OE), and Eco-scale—were calculated for each stage. The results confirm that the described method provides a greener and more sustainable alternative for the synthesis of lapatinib ditosylate.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101967"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696996","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":"An efficient photo-degradation of hazardous dye using AOP assisted metal oxide supported CNT coated cotton material under UV light irradiation","authors":"Rajagopal Saravanakumar ,&nbsp;Rajendran Babhu Vignesh ,&nbsp;Sundararajan Ashok Kumar ,&nbsp;Ramasamy Raj Kumar ,&nbsp;Gimna Maria George ,&nbsp;Muniasamy Kottaisamy","doi":"10.1016/j.jics.2025.101962","DOIUrl":"10.1016/j.jics.2025.101962","url":null,"abstract":"<div><div>The Advanced Oxidation Process (AOP) assisted photo-degradation process was developed for the removal of methylene blue (MB) dye using CeO₂@TiO₂–SiO₂ supported carbon nano tube coated cotton (CNT/Cotton) material under UV light irradiation in the presence of H₂O₂. The photo-catalytic cotton material was synthesized using precipitation, followed by dip coating method. The extensive characterization techniques such as FTIR, XRD, FE-SEM, EDX, and UV-DRS analysis were investigated for the prepared photo-active material. The obtained findings clearly demonstrated that the chosen metal oxide and CNT were successfully combined on the surface of cotton material. The fabricated UV-light driven material consisting of Ce@Ti–Si/CNT/Cotton was utilized to degrade MB dye molecules serving as a model and remarkable photo-catalytic efficiency of 99 % was achieved for MB dye within 90 min under UV-light irradiation. The dye degradation was measured using a UV–Visible (UV–Vis) spectrophotometer for determination of process efficiency. This present investigation paves huge scale improvement of photo-catalytic degradation of composite materials (Ce@Ti–Si/CNT) with cotton fabric. Interestingly, the photo-catalytic degradation efficiency of MB remained at around 80 % even after five cycles. Therefore, the recycle stability of prepared Ce@Ti–Si/CNT/Cotton was found to be satisfactory. This photo-catalytic material could be useful for the degradation of textile effluent of dye molecules in the presence of UV light.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101962"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704179","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":"Theoretical insights on spectral and electrochemical properties of BODIPY-bipyridine and Re(BODIPY-bipyridine) (CO)3Cl dyes for dye-sensitized solar cells","authors":"Daniel Álvarez ,&nbsp;Ramón López ,&nbsp;M. Isabel Menéndez","doi":"10.1016/j.jics.2025.101953","DOIUrl":"10.1016/j.jics.2025.101953","url":null,"abstract":"<div><div>Density functional theory calculations provided structural, spectral, and electrochemical properties of BODIPY-bipyridine conjugates as potential dyes for dye-sensitized solar cells. Our BODIPY, <strong>B</strong>, carries styryl and pyrrole arms at positions C3 and C5, respectively, but lacks substituents at positions C1 and C7 and its spectrum has peaks at 627 nm (band-1) and 413 nm (band-2). One and two <strong>B</strong> units are attached via their C8 or C7 atoms to the <strong>xx’</strong> atoms of 2,2′-bipyridine, <strong>b</strong>, (<strong>Bbx</strong>/<strong>Bbx_C7</strong> and <strong>BBbxx’</strong>/<strong>BBbxx’_C7</strong> conjugates). These attachments do not alter the HOMO but allow the LUMO and HOMO-1 orbitals to spread over the <strong>b</strong> fragment, affecting their orbital energies and absorption wavelengths. The C8 connection increases the intensity and red-shifts band-2, whereas the C7 one benefits band-1. The greater the number of <strong>B</strong> units, the greater the intensity of the bands. In <strong>Re_BBb55′</strong> and <strong>Re_BBb55'_C7</strong> complexes the Re orbitals do not participate in the electronic transitions. <strong>BBb55′</strong> and <strong>BBb55’_C7</strong> are the best candidates since they exhibit high light harvesting efficiencies, reasonable driving forces for electron injection and dye regeneration, and the lowest reorganization energy. They adsorb on the surface of TiO₂ nanotubes, rendering photoexcitations from the <strong>B</strong> units to <strong>b</strong>, the two <strong>B</strong>, and TiO₂.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101953"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686631","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":"Bio-treatment of mixed dye wastewater in aerobic sequential batch reactor","authors":"Vijay Kumar ,&nbsp;Ayush Agrawal ,&nbsp;Parmesh Kumar Chaudhari ,&nbsp;Chandrakant Thakur ,&nbsp;Jai Prakash Kushwaha ,&nbsp;Ashish N. Sawarkar","doi":"10.1016/j.jics.2025.101957","DOIUrl":"10.1016/j.jics.2025.101957","url":null,"abstract":"<div><div>Wastewater from textile and dye industries is hazardous due to the presence of various dyes and chemicals. To address this, strict discharge regulations have been imposed by regulatory bodies. In this study, synthetic mixed dye wastewater (MDW) containing four dyes—two acid azo dyes (Acid Red 3BN, Metanil Yellow), one basic azo dye (Malachite Green), and one heterocyclic thiazine dye (Methylene Blue)—was treated using laboratory-scale aerobic sequential batch reactors (ASBR) at a total dye concentration of 500 mg/L (125 mg/L each). The effects of hydraulic retention time (HRT) and fill time (tF) on color removal, pH, COD reduction, and dissolved oxygen were investigated. Treated batch effluent was further processed in a continuous ASBR. An optimal HRT of 2.5 days resulted in 90–95 % reduction in COD and color within 22 h. Kinetic studies revealed a specific growth rate (μ) of 0.03 h⁻¹ and a yield coefficient (Y) of 0.908 at this HRT. Based on comparative results, it is recommended that MDW be pre-treated in batch mode before initiating continuous treatment, as this effectively lowers dye concentration and color, enhancing overall treatment efficiency.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 9","pages":"Article 101957"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704180","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}