Research on Chemical Intermediates最新文献_第3页

Loofah-supported Ce-doped ZnO photocatalyst fabricated via plant-mediated synthesis for gas-phase chlorobenzene degradation 植物介导合成丝瓜丝瓜负载ce掺杂ZnO光催化剂用于气相氯苯降解

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-16 DOI: 10.1007/s11164-026-06119-4

Memnune Kardeş

{"title":"Loofah-supported Ce-doped ZnO photocatalyst fabricated via plant-mediated synthesis for gas-phase chlorobenzene degradation","authors":"Memnune Kardeş","doi":"10.1007/s11164-026-06119-4","DOIUrl":"10.1007/s11164-026-06119-4","url":null,"abstract":"<div>Ce-doped ZnO nanoparticles (NPs) were synthesized using sumac extract via a plant-mediated precipitation method to develop sustainable photocatalysts effectively removing chlorinated volatile organic compounds (CVOCs). A recyclable hybrid photocatalyst for the degradation of gaseous chlorobenzene was produced by immobilizing NPs on a naturally porous loofah sponge. Structural analyses revealed non-monotonic variations in the ZnO lattice parameters with increasing Ce content, while optical characterizations revealed that Ce doping slightly narrowed the optical band gap to 3.17 eV. Photoluminescence (PL) analysis further indicated a reduction in the near-band-edge emission intensity of 1%Ce/ZnO relative to pure ZnO, suppressed radiative electron–hole recombination. The photocatalytic performance strongly depended on the Ce concentration, with the 1% Ce-doped hybrid exhibiting the highest activity, reaching approximately 80% chlorobenzene removal, the highest pseudo-first-order kinetic constant (0.0036 s−1), and the highest CO2 concentration (~ 140 ppm). The 1%Ce/ZnO@Lf hybrid also retained substantial photocatalytic activity under > 400 nm irradiation, reaching ~ 74% chlorobenzene removal. The enhanced photocatalytic performance was related to the modified electronic structure of Ce-doped ZnO and the porous three-dimensional (3D) architecture of the loofah support. This architecture facilitated efficient nanoparticle immobilization and gas–solid interactions. Moreover, the hybrid maintained stable photocatalytic performance over five consecutive degradation cycles, with the removal efficiency decreasing only slightly from approximately 80% to 76%. Post-cycling SEM/EDS characterization indicated retention of the catalyst-coated morphology and Zn/Ce distribution after repeated cycles.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7675 - 7697"},"PeriodicalIF":3.3,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

S-scheme Bi(C2O4)OH/Bi2WO6 heterojunction enriched with oxygen vacancies for enhanced photocatalytic degradation of rhodamine B 富氧空位的S-scheme Bi(C2O4)OH/Bi2WO6异质结增强光催化降解罗丹明B

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-16 DOI: 10.1007/s11164-026-06114-9

Yong-hu Ma, Fu Ma, Tiao-bin Zhao, Zi-yi Gao, Ying-hong La, Hong-jian Zhao

{"title":"S-scheme Bi(C2O4)OH/Bi2WO6 heterojunction enriched with oxygen vacancies for enhanced photocatalytic degradation of rhodamine B","authors":"Yong-hu Ma, Fu Ma, Tiao-bin Zhao, Zi-yi Gao, Ying-hong La, Hong-jian Zhao","doi":"10.1007/s11164-026-06114-9","DOIUrl":"10.1007/s11164-026-06114-9","url":null,"abstract":"<div>Limited interfacial charge separation efficiency and insufficient redox capacity severely hinder the practical application of conventional Bi2WO6-based photocatalysts. To address these issues, a novel Bi(C2O4)OH/Bi2WO6 heterojunction was constructed via a facile room-temperature one-pot liquid-phase deposition method. Multiple characterizations confirm the intimate interfacial contact between Bi(C2O4)OH nanorods and uniformly anchored Bi2WO6 nanoparticles, accompanied by the introduction of abundant oxygen vacancies. On the basis of radical trapping experiments, EPR measurements, and electrochemical tests, an S-scheme charge-transfer model is proposed. This model retains the strong redox potentials of both semiconductors, while oxygen vacancies are speculated to act as efficient interfacial charge-trapping and transfer sites to synergistically promote the migration and separation of photogenerated carriers. The optimized 7%Bi(C2O4)OH/Bi2WO6 composite achieves an RhB removal efficiency of 97.6% within 60 min for 50 mL of RhB solution (30 mg·L-1) under 5-W LED lamp irradiation. Radical trapping and EPR tests confirm that ·O2-, h⁺, and ·OH are the dominant active species. This work presents a facile and efficient room-temperature fabrication strategy for Bi-based heterojunctions and systematically elucidates the synergistic promotion mechanism between oxygen vacancies and the proposed S-scheme charge-transfer pathway, offering new insights for designing high-performance photocatalysts for organic wastewater remediation.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7319 - 7343"},"PeriodicalIF":3.3,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Degradation of polycyclic aromatic hydrocarbons by different oxidation systems activated with sulfidated zero-valent iron nanoparticles: comparison of activation performance and reaction mechanism 硫化零价铁纳米颗粒活化不同氧化体系对多环芳烃的降解：活化性能和反应机理的比较

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-15 DOI: 10.1007/s11164-026-06117-6

Xianxian Sheng, Lu Chen, Guilu Zeng, Jiaqian Yang, Baicai Wu, Jiangbo Zhong, Jun Li, Shuguang Lyu

{"title":"Degradation of polycyclic aromatic hydrocarbons by different oxidation systems activated with sulfidated zero-valent iron nanoparticles: comparison of activation performance and reaction mechanism","authors":"Xianxian Sheng, Lu Chen, Guilu Zeng, Jiaqian Yang, Baicai Wu, Jiangbo Zhong, Jun Li, Shuguang Lyu","doi":"10.1007/s11164-026-06117-6","DOIUrl":"10.1007/s11164-026-06117-6","url":null,"abstract":"<div>The remediation of soils and groundwater contaminated with polycyclic aromatic hydrocarbons (PAHs) poses a significant challenge for in situ environmental remediation. The effectiveness of sulfur-modified nanoscale zero-valent iron (S-nZVI) in activating peroxymonosulfate (PMS) and peroxydisulfate (PDS) for fluoranthene (FLT) removal in aqueous solution was compared. Radical scavenging trials, electron paramagnetic resonance analyses, and radical probe experiments were conducted, through which SO4−· and HO· were identified as the dominant reactive oxygen species responsible for FLT removal in both systems. The significant contribution of S-nZVI to the regeneration of dissolved Fe(II) was explored via analysis of material characterization, thereby clarifying the activation mechanisms of PMS and PDS by S-nZVI. The effective pH range for both PMS/S-nZVI and PDS/S-nZVI systems was 3.0–7.0. HCO3− and humic acid (high concentrations) were found to adversely affect FLT degradation. Experiments simulating actual groundwater conditions indicated that both systems possess considerable potential for practical application. The system proposed in this study exhibits high PAHs removal efficiency even in complex environmental matrices, indicating its tremendous potential for large-scale in situ remediation. By investigating the interference of complex water quality parameters, it provides a practical and promising solution for the cleanup of PAHs contamination at actual sites.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7503 - 7528"},"PeriodicalIF":3.3,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 of core–shell SiO2@ZIF-71/Pd dielectric-based metal–organic framework for boosting CO2 reduction 核-壳SiO2@ZIF-71/Pd介电基金属有机骨架的合成促进CO2还原

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-15 DOI: 10.1007/s11164-026-06099-5

Zeeshan Akmal, Mazhar Khan, Muhammad Tayyab, Seemal Mansoor, Qiao Peng, Muhammad Adnan Zeb, Maria Siddique, Jinlong Zhang, Ziwei Ye, Lingzhi Wang

{"title":"Synthesis of core–shell SiO2@ZIF-71/Pd dielectric-based metal–organic framework for boosting CO2 reduction","authors":"Zeeshan Akmal, Mazhar Khan, Muhammad Tayyab, Seemal Mansoor, Qiao Peng, Muhammad Adnan Zeb, Maria Siddique, Jinlong Zhang, Ziwei Ye, Lingzhi Wang","doi":"10.1007/s11164-026-06099-5","DOIUrl":"10.1007/s11164-026-06099-5","url":null,"abstract":"<div>Efficient, low-cost catalysts for CO2 conversion are vital to mitigating climate change. In this study, we report the design and synthesis of a Pd single-atom-anchored ZIF-71 integrated with a SiO2 core–shell structure (SiO2@ZIF-71/Pd) to enhance photocatalytic CO2 reduction. The SiO2 core enhances light harvesting via Mie scattering, which increases photon absorption, while the core–shell structure reduces charge transport distance and minimizes electron–hole recombination, facilitating efficient charge separation. Pd single atoms, embedded within the ZIF-71 framework, serve as highly active sites for CO2 reduction, significantly improving catalytic efficiency. This hybrid catalyst achieved an impressive CO production rate of 50.5 μmol g−1 h−1 under AM 1.5 illumination, demonstrating its high performance under practical conditions. The results underscore the potential of SiO2-based MOF composites with single-atom catalysts for efficient CO2 conversion, contributing to advancements in sustainable energy solutions and the pursuit of carbon neutrality.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 10","pages":"7045 - 7063"},"PeriodicalIF":3.3,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Interfacial electronic perturbation and a proposed two-stage charge-transfer scenario in g-C3N4/rGO heterojunctions for photocatalysis 光催化中g-C3N4/rGO异质结的界面电子扰动和两阶段电荷转移方案

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-12 DOI: 10.1007/s11164-026-06100-1

Pham Do Chung, Le Thi Mai Oanh, Vu Thi Hau, Doan Viet Tuyen, Lam Thi Hang, Nguyen Manh Hung, Do Danh Bich, Nguyen Van Quang, Nguyen Van Minh

{"title":"Interfacial electronic perturbation and a proposed two-stage charge-transfer scenario in g-C3N4/rGO heterojunctions for photocatalysis","authors":"Pham Do Chung, Le Thi Mai Oanh, Vu Thi Hau, Doan Viet Tuyen, Lam Thi Hang, Nguyen Manh Hung, Do Danh Bich, Nguyen Van Quang, Nguyen Van Minh","doi":"10.1007/s11164-026-06100-1","DOIUrl":"10.1007/s11164-026-06100-1","url":null,"abstract":"<div>A series of g-C3N4/reduced graphene oxide (CN/rGO) composites were synthesized via a facile ultrasonic-assisted approach to address the intrinsically high electron–hole recombination in g-C3N4. While most previous studies on CN/rGO systems have mainly emphasized the electron-sink role of rGO, the possible interfacial electronic redistribution occurring prior to illumination remains insufficiently clarified. In this work, a set of CN/rGO composites were systematically prepared and investigated using XRD, Raman, FTIR, XPS, UV–vis spectroscopy, PL, and photocatalytic decolorization tests to examine this hypothesis. The results reveal composition-dependent structural and local bonding perturbations in the composites, together with XPS binding-energy shifts consistent with an electronically perturbed interfacial environment within the g-C3N4 framework. Upon excitation, pronounced PL quenching indicates suppressed radiative recombination and is consistent with additional interfacial charge-transfer pathways involving rGO. Among the samples studied, CN/rGO-40/1 exhibits the best balance between interfacial interaction and structural integrity, achieving nearly complete RhB removal within 60 mins under natural sunlight and the highest mean apparent rate constant among the investigated compositions. Collectively, these observations are consistent with a proposed two-stage interfacial scenario in which heterojunction formation is associated with ground-state structural/electronic perturbations, followed by modified charge-transfer and recombination behavior under illumination.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7699 - 7720"},"PeriodicalIF":3.3,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Boric acid-assisted preparation and characterization of laurel (Laurus nobilis L.) leaves-derived activated carbon for efficient hydrogen generation via NaBH4 alcoholysis 硼酸辅助下月桂叶活性炭NaBH4醇解高效产氢的制备及表征

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-11 DOI: 10.1007/s11164-026-06110-z

Uğur Işık, Mesut Namlı, Duygu Elma Karakaş

{"title":"Boric acid-assisted preparation and characterization of laurel (Laurus nobilis L.) leaves-derived activated carbon for efficient hydrogen generation via NaBH4 alcoholysis","authors":"Uğur Işık, Mesut Namlı, Duygu Elma Karakaş","doi":"10.1007/s11164-026-06110-z","DOIUrl":"10.1007/s11164-026-06110-z","url":null,"abstract":"<div>In this study, an active carbon-based Ln-B-900 catalyst is synthesized by a chemical activation method using boric acid as an activating agent. It is evaluated as a metal-free catalyst in the NaBH4 alcoholysis reaction. The metal-free porous carbons are prepared by pyrolysis, and the effects of various carbonization temperatures and times are investigated. The highest catalytic activity is observed for the sample carbonized at 900 °C for 45 min. Following this process, the specific surface area of Ln-B-900 catalyst is observed to increase from 0.80 m2g−1 to 397.6 m2/g, and the pore volume reach to 0.62 cm3/g. Boric acid promoted the formation of mesopores and micropores during the activation process, resulting in a more efficient development of the porous structure. In methanol/propylene glycol reactions carried out at 30 °C using Ln-B-900 catalyst, a hydrogen generation rate reaches up to 241,200 mLmin−1gcat−1 is achieved with 0.25 g NaBH4. Furthermore, the activation energy of the Ln-B-900 catalyst is calculated to be 33.20 kJ/mol over the temperature range of 20–50 °C. Although 100% conversion is achieved in each cycle in successive applications, only around 84% of the catalytic activity is retained by the third cycle. These results show that biochar activated with boric acid is an effective porous catalyst for hydrogen production by NaBH4 alcoholysis.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7441 - 7467"},"PeriodicalIF":3.3,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149188961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Microwave assisted fuel effects on the physicochemical and photocatalytic properties of CoFe₂O₄ for hydrogen evolution and removal of oxytetracycline 微波辅助燃料对CoFe₂O₄析氢脱除土霉素的理化和光催化性能的影响

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-10 DOI: 10.1007/s11164-026-06113-w

Olga K. Mmelesi, Ntakadzeni Madima, Xinying Liu

{"title":"Microwave assisted fuel effects on the physicochemical and photocatalytic properties of CoFe₂O₄ for hydrogen evolution and removal of oxytetracycline","authors":"Olga K. Mmelesi, Ntakadzeni Madima, Xinying Liu","doi":"10.1007/s11164-026-06113-w","DOIUrl":"10.1007/s11164-026-06113-w","url":null,"abstract":"<div>Cobalt ferrite is a promising magnetic photocatalytic material owing to its tuneable magnetic properties and visible-light-driven photocatalytic activity. In this study, the effects of fuels on the structural, optical, magnetic, and photocatalytic properties of cobalt ferrite were investigated by employing urea and L-arginine as fuel sources. The samples, denoted as CF-U (urea-derived) and CF-L (L-arginine-derived), exhibit distinct physicochemical characteristics arising from differences in fuel decomposition behaviour. BET analyses reveal that CF-U possesses a higher surface area (28.668 m2 g−1) compared to CF-L (11.872 m2 g−1). UV–Vis indicates that both samples absorb in the visible-light region; however, photoluminescence measurements confirm a reduced electron–hole recombination rate for CF-U. Magnetic measurements show enhanced saturation magnetization for CF-U (42 emu g−1) relative to CF-L (36 emu g−1), attributed to improved crystallinity and cation distribution. Owing to its favourable structural integrity, larger surface area, and superior charge carrier separation, CF-U exhibited enhanced photocatalytic performance for degradation of OTC (70.42%) and H2 production (11.74 mmol g−1) under solar simulated irradiation. These findings highlight the critical role of fuel selection in tailoring the physicochemical properties of cobalt ferrite.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 11","pages":"7373 - 7398"},"PeriodicalIF":3.3,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-026-06113-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Merrifield resin-supported acidic benzimidazolium ionic liquid as an efficient and recyclable catalyst for the green synthesis of decahydroacridine−1,8-dione and octahydroxanthene−1,8-dione derivatives Merrifield树脂负载的酸性苯并咪唑离子液体作为高效可回收催化剂，用于绿色合成十氢吖啶- 1,8-二酮和八羟基蒽- 1,8-二酮衍生物

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-09 DOI: 10.1007/s11164-026-06106-9

Sameer Abdullah Mutahar Al Ans, Amardeep Manikrao Vaygavkar, Abdulfatah Abdullah Abdu Saifan, Sangita Sanjay Makone

{"title":"Merrifield resin-supported acidic benzimidazolium ionic liquid as an efficient and recyclable catalyst for the green synthesis of decahydroacridine−1,8-dione and octahydroxanthene−1,8-dione derivatives","authors":"Sameer Abdullah Mutahar Al Ans, Amardeep Manikrao Vaygavkar, Abdulfatah Abdullah Abdu Saifan, Sangita Sanjay Makone","doi":"10.1007/s11164-026-06106-9","DOIUrl":"10.1007/s11164-026-06106-9","url":null,"abstract":"<div>Herein, we present the synthesis and catalytic application of a novel Merrifield resin-supported acidic benzimidazolium ionic liquid, [MRmBim][OTs]. The resulting supported ionic liquid was characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Brunauer–Emmett–Teller surface area analysis (BET), and dynamic light scattering (DLS). The catalytic activity of [MRmBim][OTs] in the one-pot multicomponent synthesis of decahydroacridine−1,8-dione and octahydroxanthene−1,8-dione derivatives was investigated. The catalytic system afforded the desired products in excellent yields (88–98%) under mild reaction conditions and within short reaction times (7–25 min). In addition, the catalyst showed good recyclability and retained its catalytic activity for seven cycles, demonstrating its potential as an efficient and reusable heterogeneous catalyst for greener organic synthesis.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 10","pages":"6823 - 6846"},"PeriodicalIF":3.3,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148985349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Rational design of ZnCo2O4@MnO2/g-C3N4 heterostructures toward high-performance CO2 gas sensing 面向高性能CO2气敏的ZnCo2O4@MnO2/g-C3N4异质结构的合理设计

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-08 DOI: 10.1007/s11164-026-06105-w

T. Archana, J. Sasidevi, C. Venkatesh Kumar, G. Sasikala, Prasanthi Kumari Nunna, Shrikant Upadhyay

{"title":"Rational design of ZnCo2O4@MnO2/g-C3N4 heterostructures toward high-performance CO2 gas sensing","authors":"T. Archana, J. Sasidevi, C. Venkatesh Kumar, G. Sasikala, Prasanthi Kumari Nunna, Shrikant Upadhyay","doi":"10.1007/s11164-026-06105-w","DOIUrl":"10.1007/s11164-026-06105-w","url":null,"abstract":"<div>The development of highly sensitive, low-temperature CO2 sensors is critical for environmental monitoring and industrial safety. We successfully built a ternary ZnCo2O4@MnO2/g-C3N4 heterostructure using a hydrothermal-assisted technique with an ideal weight ratio of 60:20:20. We subsequently utilized it to create a sensor on Ag interdigitated electrodes. The structural and surface characterizations confirmed the successful fabrication of the heterostructure with intimate interfacial contact, constant elemental distribution, and abundant oxygen-related active sites, resulting in optimal paths for gas adsorption and charge transfer. The sensor has an ideal operating temperature of 140 °C, which is much lower than many reported CO2 sensors. The ZnCo2O4@MnO2/g-C3N4 sensor has a low activation energy of 142 meV, compared to 161 and 220 meV for pure ZnCo2O4 and g-C3N4, indicating quicker charge transfer kinetics. The sensor response was 32.5 ± 0.8 at 50 ppm CO2 and increased steadily to 175 ± 4 at 1000 ppm, indicating a wide detection range. Furthermore, the sensor demonstrated fast response and recovery times of 25 ± 1 s and 20 ± 1 s, respectively, high selectivity to CO2, consistent repeatability over seven sensing cycles, and excellent operational stability for 60 days. The synergistic heterojunction effect, enhanced electron transport, abundant active adsorption sites, and effective depletion-layer modulation all contribute to this exceptional sensing performance. The findings indicate that the ZnCo2O4@MnO2/g-C3N4 heterostructure might be a viable candidate for high-performance CO2 gas sensing and environmental monitoring applications.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 10","pages":"7065 - 7086"},"PeriodicalIF":3.3,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148985330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Electrochemical Synthesis of Phenylethanamines via the Hydrogenation Reduction Reaction of Imines from Water Hydrolysis, Facilitated by the Presence of HNFM@NiCl3 Metallic DES HNFM@NiCl3金属DES催化水解亚胺加氢还原反应电化学合成苯乙胺

IF 3.3 3区化学

Research on Chemical Intermediates Pub Date : 2026-09-07 DOI: 10.1007/s11164-026-06102-z

Bilal A. Dylan, Jasur Tursunqulov, Gafur Abdulakimov, Raouf Hassan, Hussein Ali Al-Bahrani, Zafar Adilov, Dilafruz Kholmurodova, Bekzod Madaminov, Abdullah Yahya Abdullah Alzahrani, Elyor Berdimurodov, Khasan Berdimuradov, Khasanov Okhunjon

{"title":"Electrochemical Synthesis of Phenylethanamines via the Hydrogenation Reduction Reaction of Imines from Water Hydrolysis, Facilitated by the Presence of HNFM@NiCl3 Metallic DES","authors":"Bilal A. Dylan, Jasur Tursunqulov, Gafur Abdulakimov, Raouf Hassan, Hussein Ali Al-Bahrani, Zafar Adilov, Dilafruz Kholmurodova, Bekzod Madaminov, Abdullah Yahya Abdullah Alzahrani, Elyor Berdimurodov, Khasan Berdimuradov, Khasanov Okhunjon","doi":"10.1007/s11164-026-06102-z","DOIUrl":"10.1007/s11164-026-06102-z","url":null,"abstract":"<div>Hydrogenation reactions catalyzed by nickel (Ni) are well-established processes extensively employed in the oil production industry. While these reactions frequently utilize hydrogen generated via the electrolysis of H2O a method regarded as environmentally friendly several limitations persist. A primary challenge is the substantial electrical energy required for electrolysis, coupled with the use of non-recyclable Ni catalysts that typically possess low surface areas. To address these issues, the incorporation of metal-based electrolytes has been proposed to enhance process efficiency. However, the selection of suitable electrolytes and the optimization of operational parameters continue to present significant challenges. In this study, an electro-catalytic system was developed using the metal electrolyte HNFM@NiCl3 DES and inexpensive, readily available graphite rod electrodes. An electro-catalytic reduction reaction was then performed to synthesize 1-phenylethanamine 3(a-l) and bis(1-phenylethyl)amine 4(a-i) derivatives in the presence of acetophenone 1(a-l) and NH4Cl 2(a). The reaction conditions included ambient temperature, atmospheric pressure, a reaction time of 1 h, and an electric current of 20 mA. The derivatives were synthesized with good to excellent yields ranging from 89 to 98% and were identified using 1H NMR, 13C NMR, and CHN analyses.<h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"52 10","pages":"6847 - 6871"},"PeriodicalIF":3.3,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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