Pub Date : 2026-01-24DOI: 10.1016/j.inoche.2026.116229
Bryan López-Nájera , Jonatán Joel Aguirre-Camacho , Lucía Z. Flores-López PhD , Heriberto Espinoza-Gómez PhD , Gabriel Alonso-Núñez PhD. , Rubén Darío Cadena-Nava PhD
This research work focused on the green synthesis of gold nanoparticles (AuNPs) using a novel photobiological engineering method with an aqueous extract of fresh Gardenia jasminoides (G. jasminoides) leaves (AuNPs/ExGj); which was used as a reducing-stabilizing (RS) agent, for the first time. A reactor with narrow-band LEDs of different colors (blue, green, yellow, red, and white) and solar light was used to carry out the green synthesis. The synthesized AuNPs/ExGj were characterized through ultraviolet-visible spectrophotometry (UV–Vis), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and field emission transmission electron microscopy (FETEM-EDX). The AuNPs/ExGj were obtained in various morphologies, including spherical, triangular, pentagonal, and icosahedron (regular and irregular shapes), as well as nanorods, with average sizes between 27 and 52 nm. Moreover, the AuNPs/ExGj resulted efficient catalysts in the photodegradation of over-the-counter commercial dye derived from benzidine. The photocatalytic efficiency, using sunlight or white LED (WhL) as a radiation source, was 94.9% and 99.8%, respectively, in a reaction time of two hours.
{"title":"Photobiological engineering method with colors LEDs for the green synthesis of gold nanoparticles and their photocatalytic activity","authors":"Bryan López-Nájera , Jonatán Joel Aguirre-Camacho , Lucía Z. Flores-López PhD , Heriberto Espinoza-Gómez PhD , Gabriel Alonso-Núñez PhD. , Rubén Darío Cadena-Nava PhD","doi":"10.1016/j.inoche.2026.116229","DOIUrl":"10.1016/j.inoche.2026.116229","url":null,"abstract":"<div><div>This research work focused on the green synthesis of gold nanoparticles (AuNPs) using a novel photobiological engineering method with an aqueous extract of fresh <em>Gardenia jasminoides</em> (<em>G. jasminoides</em>) leaves (AuNPs/ExGj); which was used as a reducing-stabilizing (RS) agent, for the first time. A reactor with narrow-band LEDs of different colors (blue, green, yellow, red, and white) and solar light was used to carry out the green synthesis. The synthesized AuNPs/ExGj were characterized through ultraviolet-visible spectrophotometry (UV–Vis), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and field emission transmission electron microscopy (FETEM-EDX). The AuNPs/ExGj were obtained in various morphologies, including spherical, triangular, pentagonal, and icosahedron (regular and irregular shapes), as well as nanorods, with average sizes between 27 and 52 nm. Moreover, the AuNPs/ExGj resulted efficient catalysts in the photodegradation of over-the-counter commercial dye derived from benzidine. The photocatalytic efficiency, using sunlight or white LED (WhL) as a radiation source, was 94.9% and 99.8%, respectively, in a reaction time of two hours.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116229"},"PeriodicalIF":5.4,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074386","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}
Pub Date : 2026-01-24DOI: 10.1016/j.inoche.2026.116223
Yuesong Han , Jingyi Sun , Xinghui Wang , Yishuo Zhang , Lingling Peng , Guo feng Wang , Bo Liu , Hao Jiang , Xiaoliang Liu , Yibao Liu , Yuhui Liu , Xiaoyan Li
Thorium exhibits notable environmental and health risks as a result of its prolonged half-life and radioactive toxicity, which renders the remediation of thorium-laden wastewater highly significant. A novel economical, efficient and environmentally friendly Th (IV) adsorbent was synthesized by one-step method using 3-aminopropyltriethoxysilane(APTES) as modifier to functionalize attapulgite(ATP). Characterization analysis results demonstrated that the prepared material possessed a distinct rod-shaped morphology, abundant amino and hydroxyl groups on the surface, and had good adsorption for Th(IV) in wastewater. At room temperature, the adsorption capacity of APTES/ATP for Th(IV) reached 1521.98 mg/g. The results of adsorption kinetics, adsorption isotherms and thermodynamics showed that the reaction of APTES/ATP with Th(IV) conformed to the pseudo-second-order kinetics and Langmuir isothermal adsorption model. The adsorption process of Th(IV) by this material was a monolayer endothermic reaction. The adsorption mechanism mainly involves the complexation and coordination of Th(IV) with amino, OH-and Si-OH groups in APTES/ATP, which can effectively remove Th(IV) in wastewater.
{"title":"The mechanism of efficient removal of Th(IV) in solution by amino-functionalized attapulgite: complexation-coordination","authors":"Yuesong Han , Jingyi Sun , Xinghui Wang , Yishuo Zhang , Lingling Peng , Guo feng Wang , Bo Liu , Hao Jiang , Xiaoliang Liu , Yibao Liu , Yuhui Liu , Xiaoyan Li","doi":"10.1016/j.inoche.2026.116223","DOIUrl":"10.1016/j.inoche.2026.116223","url":null,"abstract":"<div><div>Thorium exhibits notable environmental and health risks as a result of its prolonged half-life and radioactive toxicity, which renders the remediation of thorium-laden wastewater highly significant. A novel economical, efficient and environmentally friendly Th (IV) adsorbent was synthesized by one-step method using 3-aminopropyltriethoxysilane(APTES) as modifier to functionalize attapulgite(ATP). Characterization analysis results demonstrated that the prepared material possessed a distinct rod-shaped morphology, abundant amino and hydroxyl groups on the surface, and had good adsorption for Th(IV) in wastewater. At room temperature, the adsorption capacity of APTES/ATP for Th(IV) reached 1521.98 mg/g. The results of adsorption kinetics, adsorption isotherms and thermodynamics showed that the reaction of APTES/ATP with Th(IV) conformed to the pseudo-second-order kinetics and Langmuir isothermal adsorption model. The adsorption process of Th(IV) by this material was a monolayer endothermic reaction. The adsorption mechanism mainly involves the complexation and coordination of Th(IV) with amino, OH-and Si-OH groups in APTES/ATP, which can effectively remove Th(IV) in wastewater.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116223"},"PeriodicalIF":5.4,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074324","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}
Pub Date : 2026-01-23DOI: 10.1016/j.inoche.2026.116204
C.P. Prathibha , Srinivas Mallapur , B.M. Rajesh , Sanjeev P. Maradur , Sakthivel Kandaiah , S. Girish Kumar
The synthesis of titania crystals from the conventional titanium precursors (alkoxides, halides) is a challenging task as the rapid hydrolysis leads to aggregates in the solution phase. In this context, Ti3C2 MXene emerged as a versatile precursor owing to their inherent sheet-like structure and easy crystallization of TiO2 from its surface under the moderate reaction conditions. The titania formation was evidenced for 16 h of hydrothermal reaction time, while the longer reaction time (30 h) showed the presence of TiO2 with co-exposed (001) and (101) facets under the assistance of NaBF4. It was revealed that the Ti3C2/TiO2 obtained at low reaction time (16 h) had an extremely negative surface charge density, which favoured the pollutant adsorption and degradation process. The electron paramagnetic spectroscopic studies indicated the presence of oxygen vacancies and Ti3+ sites, which facilitated the spatial separation of electron-hole pairs. The formation of Schottky contact between the Ti3C2 and TiO2 was confirmed by computational analysis, which additionally contributed to the overall efficiency. The findings of the present work might open an avenue for the synthesis of co-exposed faceted crystals using MXenes substrate under the wet-chemical approaches.
{"title":"Hydrothermal assisted in-situ growth of faceted titania on Ti3C2 surface: Exploration of photocatalytic mechanism for the removal of HAMLA-550 insecticide","authors":"C.P. Prathibha , Srinivas Mallapur , B.M. Rajesh , Sanjeev P. Maradur , Sakthivel Kandaiah , S. Girish Kumar","doi":"10.1016/j.inoche.2026.116204","DOIUrl":"10.1016/j.inoche.2026.116204","url":null,"abstract":"<div><div>The synthesis of titania crystals from the conventional titanium precursors (alkoxides, halides) is a challenging task as the rapid hydrolysis leads to aggregates in the solution phase. In this context, Ti<sub>3</sub>C<sub>2</sub> MXene emerged as a versatile precursor owing to their inherent sheet-like structure and easy crystallization of TiO<sub>2</sub> from its surface under the moderate reaction conditions. The titania formation was evidenced for 16 h of hydrothermal reaction time, while the longer reaction time (30 <em>h</em>) showed the presence of TiO<sub>2</sub> with co-exposed (001) and (101) facets under the assistance of NaBF<sub>4</sub>. It was revealed that the Ti<sub>3</sub>C<sub>2</sub>/TiO<sub>2</sub> obtained at low reaction time (16 h) had an extremely negative surface charge density, which favoured the pollutant adsorption and degradation process. The electron paramagnetic spectroscopic studies indicated the presence of oxygen vacancies and Ti<sup>3+</sup> sites, which facilitated the spatial separation of electron-hole pairs. The formation of Schottky contact between the Ti<sub>3</sub>C<sub>2</sub> and TiO<sub>2</sub> was confirmed by computational analysis, which additionally contributed to the overall efficiency. The findings of the present work might open an avenue for the synthesis of co-exposed faceted crystals using MXenes substrate under the wet-chemical approaches.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116204"},"PeriodicalIF":5.4,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074381","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}
Pub Date : 2026-01-23DOI: 10.1016/j.inoche.2026.116215
Mihiriguli Abulimiti , Xiao Kang , Anwar Mamat , Xiangyan Li , Abulikemu Abulizi , Ailijiang Nuerla
Developing efficient, eco-friendly photocatalytic degradation processes using non-toxic and recyclable photocatalysts is a critical demand for wastewater treatment. To address tetracycline (TC) pollution, this study fabricated an S-type g-C3N4/ Bi2WO6 OVs/CdS (CN/BWO OVs/CdS; OVs: Oxygen Vacancies) heterojunction via an in-situ solvothermal approach. The composition, crystal structure, and micromorphology of the as-fabricated samples were systematically characterized. Under simulated solar irradiation, the CN/BWO OVs/CdS composite exhibited superior TC degradation performance compared to pristine g-C3N4, Bi2WO6 OVs, CdS, and their binary composites: by optimizing the component ratio, a 98.6% TC degradation efficiency was achieved within 120 min. Additionally, the CN/BWO OVs/CdS catalyst demonstrated excellent cycling stability, confirming its potential for practical application. Electron paramagnetic resonance (EPR) measurements and free radical quenching assays demonstrated that superoxide radicals (•O2−) and holes (h+) serve as the primary reactive species driving TC degradation. The improved photocatalytic performance was largely ascribed to the S-scheme charge transfer mechanism, which efficiently facilitates the separation of photogenerated electron-hole pairs. This study offers an innovative approach to engineering high-efficiency ternary photocatalysts for wastewater treatment.
{"title":"Performance study of CN/BWO OVs/CdS ternary system in photocatalytic degradation of tetracycline","authors":"Mihiriguli Abulimiti , Xiao Kang , Anwar Mamat , Xiangyan Li , Abulikemu Abulizi , Ailijiang Nuerla","doi":"10.1016/j.inoche.2026.116215","DOIUrl":"10.1016/j.inoche.2026.116215","url":null,"abstract":"<div><div>Developing efficient, eco-friendly photocatalytic degradation processes using non-toxic and recyclable photocatalysts is a critical demand for wastewater treatment. To address tetracycline (TC) pollution, this study fabricated an S-type g-C<sub>3</sub>N<sub>4</sub>/ Bi<sub>2</sub>WO<sub>6</sub> OVs/CdS (CN/BWO OVs/CdS; OVs: Oxygen Vacancies) heterojunction via an in-situ solvothermal approach. The composition, crystal structure, and micromorphology of the as-fabricated samples were systematically characterized. Under simulated solar irradiation, the CN/BWO OVs/CdS composite exhibited superior TC degradation performance compared to pristine g-C<sub>3</sub>N<sub>4</sub>, Bi<sub>2</sub>WO<sub>6</sub> OVs, CdS, and their binary composites: by optimizing the component ratio, a 98.6% TC degradation efficiency was achieved within 120 min. Additionally, the CN/BWO OVs/CdS catalyst demonstrated excellent cycling stability, confirming its potential for practical application. Electron paramagnetic resonance (EPR) measurements and free radical quenching assays demonstrated that superoxide radicals (•O<sub>2</sub><sup>−</sup>) and holes (h<sup>+</sup>) serve as the primary reactive species driving TC degradation. The improved photocatalytic performance was largely ascribed to the S-scheme charge transfer mechanism, which efficiently facilitates the separation of photogenerated electron-hole pairs. This study offers an innovative approach to engineering high-efficiency ternary photocatalysts for wastewater treatment.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116215"},"PeriodicalIF":5.4,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074323","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}
Pub Date : 2026-01-23DOI: 10.1016/j.inoche.2026.116219
Ranran Zheng , Jian Rong , Chujun Feng , Yuzhe Zhang , Xudong Zheng , Zhongyu Li , Song Xu
Among photocatalytic semiconductors, graphitic carbon nitride (g-C3N4) is widely utilized owing to its non-toxicity, tunable bandgap, high thermal stability, and facile synthesis. Acetylacetone-derived carbon nitride (ECN) was synthesized via the thermal copolymerization of a mixture of urea and acetylacetone. ECN exhibited enhanced the visible-light absorption and accelerated charge transfer efficiency relative to pristine CN. ECN were combined with the sulfide solid solution Mn0.3Cd0.7S (MCS) with excellent photocatalytic performance through electrostatic self-assembly to form high-performance ECN/MCS composites. Among composites with varying ratios, ECN/MCS-80 demonstrated the optimal photocatalytic hydrogen evolution rate of 24.74 mmol·g−1·h−1. Photoelectronic characterization confirmed the formation of a Type-II heterojunction between ECN and MCS, which substantially facilitated charge separation and consequently enhanced photocatalytic hydrogen evolution. This work provides new insights for designing efficient heterojunction photocatalysts through precise molecular doping and optimized interfacial charge separation for enhanced solar-to‑hydrogen energy conversion.
{"title":"Boosting photocatalytic hydrogen evolution over acetylacetone-derived g-C3N4/Mn0.3Cd0.7S Type-II heterojunction: Interfacial engineering and mechanism insights","authors":"Ranran Zheng , Jian Rong , Chujun Feng , Yuzhe Zhang , Xudong Zheng , Zhongyu Li , Song Xu","doi":"10.1016/j.inoche.2026.116219","DOIUrl":"10.1016/j.inoche.2026.116219","url":null,"abstract":"<div><div>Among photocatalytic semiconductors, graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) is widely utilized owing to its non-toxicity, tunable bandgap, high thermal stability, and facile synthesis. Acetylacetone-derived carbon nitride (ECN) was synthesized via the thermal copolymerization of a mixture of urea and acetylacetone. ECN exhibited enhanced the visible-light absorption and accelerated charge transfer efficiency relative to pristine CN. ECN were combined with the sulfide solid solution Mn<sub>0.3</sub>Cd<sub>0.7</sub>S (MCS) with excellent photocatalytic performance through electrostatic self-assembly to form high-performance ECN/MCS composites. Among composites with varying ratios, ECN/MCS-80 demonstrated the optimal photocatalytic hydrogen evolution rate of 24.74 mmol·g<sup>−1</sup>·h<sup>−1</sup>. Photoelectronic characterization confirmed the formation of a Type-II heterojunction between ECN and MCS, which substantially facilitated charge separation and consequently enhanced photocatalytic hydrogen evolution. This work provides new insights for designing efficient heterojunction photocatalysts through precise molecular doping and optimized interfacial charge separation for enhanced solar-to‑hydrogen energy conversion.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116219"},"PeriodicalIF":5.4,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170372","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}
The present study reported the synthesis approach, antibacterial, and photocatalytic activity of TiO2/K2SO4@MoS2 nanocomposites. In contrast to previously reported TiO2-MoS2 based photocatalysts that primarily focus on single-function dye degradation, the present work emphasizes a multifunctional nanocomposite design. This study investigates the use of UV light to enhance the degradation of organic contaminants in wastewater by photocatalysis. Titanium dioxide-doped potassium sulphate and molybdenum disulfide nanocomposites (TiO2/K2SO4@MoS2 NCs) synthesized by the co-precipitation method were applied to the photodegradation of Brilliant Green (BG) and Rose Bengal (RB) dyes under UV light. The synthesized TiO2/K2SO4@MoS2 novel nanocomposites underwent comprehensive characterization using SEM-EDS, XRD, FTIR, and UV–visible spectroscopy techniques, confirming the successful insertion of TiO2/K2SO4 into the MoS2 nanosheets. Compared to previously reported TiO2/K2SO4 based nanocomposite, the incorporation of MoS2 provides improved interfacial charge transfer and suppresses electron-hole recombination. The results showed that TiO2/K2SO4@MoS2 hybrid nanocomposites exhibited enhanced activity in oxidizing BG and RB dyes in water under UV light irradiation compared to pure TiO2/K2SO4 within 60 min. The results indicate that the effectiveness of photodegradation of the TiO2/K2SO4 nanoparticles improved from 77.87% to 85.22% in the presence of MoS2 for BG and 78.14% to 86.8% for RB. The produced TiO2/K2SO4@MoS2 NCs photocatalysts were shown to be stable during BG and RB photodegradation in reusable studies, suggesting potential uses for environmental remediation. The antibacterial activity of the TiO2/K2SO4@MoS2 nanocomposite was evaluated through the inactivation of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria.
{"title":"Multifunctional TiO2/K2SO4@MoS2 nanocomposite with superior photocatalytic degradation of Brilliant Green and Rose Bengal dyes, along with potent antibacterial activity","authors":"Krishna Raj Chinnadurai , Siranjeevi Ravichandran , Susmitha Ravichandran , Sameera Shabnum Saleem","doi":"10.1016/j.inoche.2026.116220","DOIUrl":"10.1016/j.inoche.2026.116220","url":null,"abstract":"<div><div>The present study reported the synthesis approach, antibacterial, and photocatalytic activity of TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> nanocomposites. In contrast to previously reported TiO<sub>2</sub>-MoS<sub>2</sub> based photocatalysts that primarily focus on single-function dye degradation, the present work emphasizes a multifunctional nanocomposite design. This study investigates the use of UV light to enhance the degradation of organic contaminants in wastewater by photocatalysis. Titanium dioxide-doped potassium sulphate and molybdenum disulfide nanocomposites (TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> NCs) synthesized by the co-precipitation method were applied to the photodegradation of Brilliant Green (BG) and Rose Bengal (RB) dyes under UV light. The synthesized TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> novel nanocomposites underwent comprehensive characterization using SEM-EDS, XRD, FTIR, and UV–visible spectroscopy techniques, confirming the successful insertion of TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub> into the MoS<sub>2</sub> nanosheets. Compared to previously reported TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub> based nanocomposite, the incorporation of MoS<sub>2</sub> provides improved interfacial charge transfer and suppresses electron-hole recombination. The results showed that TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> hybrid nanocomposites exhibited enhanced activity in oxidizing BG and RB dyes in water under UV light irradiation compared to pure TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub> within 60 min. The results indicate that the effectiveness of photodegradation of the TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub> nanoparticles improved from 77.87% to 85.22% in the presence of MoS<sub>2</sub> for BG and 78.14% to 86.8% for RB. The produced TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> NCs photocatalysts were shown to be stable during BG and RB photodegradation in reusable studies, suggesting potential uses for environmental remediation. The antibacterial activity of the TiO<sub>2</sub>/K<sub>2</sub>SO<sub>4</sub>@MoS<sub>2</sub> nanocomposite was evaluated through the inactivation of Gram-positive (<em>Staphylococcus aureus</em>) and Gram-negative (<em>Escherichia coli</em>) bacteria.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116220"},"PeriodicalIF":5.4,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074456","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}
Pub Date : 2026-01-22DOI: 10.1016/j.inoche.2026.116206
Chen-Lu Zhang , Yu-Yao Li , Xiao-Hui Li , Zhi-Xuan An , Zhong Zhang , Xiu-Li Wang
In this work, two new metal-organic complexes (MOCs), namely [Co(L)(BTEC)0.5]·H2O (1) and [Co(L)(2,2-BDC)]·H2O (2) (L = (E)-4,4′-(diazene-1,2-diyl)bis(N-(pyridin-3-yl)benzamide); H4BTEC = benzene-1,2,4,5-tetracarboxylic acid; 2,2-BDC = [1,1′-biphenyl]-2,2′-dicarboxylic acid) were synthesized under hydrothermal conditions by a dual-ligand strategy, which were characterized by IR, PXRD, TG and single crystal X-ray diffraction. The diamide derivative L was used as the main ligand, while the tetradentate H4BTEC and the bidentate 2,2-BDC were employed as the secondary ligands respectively, to regulate the coordination geometry of the central Co atoms in the title MOCs. In the sulfide oxidation reaction, complexes 1 and 2 can act as heterogeneous catalysts with highly catalytic activity and excellent sulfoxide selectivity. Notably, the distinct coordination geometry of the Co centers in complexes 1 and 2 resulted in different accessibility to catalytic active sites, leading to distinct catalytic effects. For methyl phenyl thioether oxidation, complex 1 with a four-coordinated distorted tetrahedral Co(II) configuration (τ₄ = 0.765) achieved 99% conversion (sel. 99%), while complex 2 with a four-coordinated more slightly distorted tetrahedral Co(II) configuration (τ₄ = 0.809) showed 94% conversion (sel. 98%). The influence of different metal coordination geometry in the complexes on their catalytic effect was investigated, which provide meaningful guidance for the design and synthesis of efficient heterogeneous MOCs catalysts.
{"title":"Metal coordination geometry-dependent catalytic performance: Two cobalt complexes for sulfide oxidation reaction","authors":"Chen-Lu Zhang , Yu-Yao Li , Xiao-Hui Li , Zhi-Xuan An , Zhong Zhang , Xiu-Li Wang","doi":"10.1016/j.inoche.2026.116206","DOIUrl":"10.1016/j.inoche.2026.116206","url":null,"abstract":"<div><div>In this work, two new metal-organic complexes (MOCs), namely [Co(L)(BTEC)<sub>0.5</sub>]·H<sub>2</sub>O (<strong>1</strong>) and [Co(L)(2,2-BDC)]·H<sub>2</sub>O (<strong>2</strong>) (L = (<em>E</em>)-4,4′-(diazene-1,2-diyl)bis(<em>N</em>-(pyridin-3-yl)benzamide); H<sub>4</sub>BTEC = benzene-1,2,4,5-tetracarboxylic acid; 2,2-BDC = [1,1′-biphenyl]-2,2′-dicarboxylic acid) were synthesized under hydrothermal conditions by a dual-ligand strategy, which were characterized by IR, PXRD, TG and single crystal X-ray diffraction. The diamide derivative L was used as the main ligand, while the tetradentate H<sub>4</sub>BTEC and the bidentate 2,2-BDC were employed as the secondary ligands respectively, to regulate the coordination geometry of the central Co atoms in the title MOCs. In the sulfide oxidation reaction, complexes <strong>1</strong> and <strong>2</strong> can act as heterogeneous catalysts with highly catalytic activity and excellent sulfoxide selectivity. Notably, the distinct coordination geometry of the Co centers in complexes <strong>1</strong> and <strong>2</strong> resulted in different accessibility to catalytic active sites, leading to distinct catalytic effects. For methyl phenyl thioether oxidation, complex <strong>1</strong> with a four-coordinated distorted tetrahedral Co(II) configuration (τ₄ = 0.765) achieved 99% conversion (sel. 99%), while complex <strong>2</strong> with a four-coordinated more slightly distorted tetrahedral Co(II) configuration (τ₄ = 0.809) showed 94% conversion (sel. 98%). The influence of different metal coordination geometry in the complexes on their catalytic effect was investigated, which provide meaningful guidance for the design and synthesis of efficient heterogeneous MOCs catalysts.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116206"},"PeriodicalIF":5.4,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096019","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}
Creating affordable and efficient electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) across different pH levels remains a significant challenge in renewable energy research. In this study, we report a novel hierarchical nanocomposite comprising CeO2 and NiO nanospheres integrated with g-C3N4 nanosheets on nickel foam (NF), demonstrating bifunctional electrocatalytic activity toward HER and OER across alkaline, acidic, and neutral media. The g-C3N4/CeO2/NiO exhibits ultra-low overpotentials (0.064 V for HER and 0.281 V for OER at 50 mA/cm2) and excellent durability. The synergistic electron transfer between Ce3+/Ce4+and Ni2+ in the porous g-C3N4 matrix reduces intermediate binding energies and boosts electrocatalytic kinetics. A two-electrode electrolyzer assembled with this hybrid catalyst achieves efficient overall water splitting at low cell voltages of 1.72 V (alkaline), 1.92 V (acidic), and 1.98 V (neutral) at 200 mA/cm2. The superior performance is attributed to strong interfacial electron interactions among Ni2+, Ce3+/Ce4+, and the g-C3N4 matrix, which optimize intermediate binding energies and accelerate reaction kinetics. These results highlight the g-C3N4/CeO2/NiO composite as a promising and versatile electrocatalyst for pH-universal water splitting.
{"title":"Ultralow-overpotential non-noble metal oxide–doped g-C₃N₄ heterostructure for efficient bifunctional water splitting electrocatalyst across all pH conditions","authors":"Kedareswari Thippana , Rakesh Kulkarni , Lakshmi Prasanna Lingamdinne , Adinarayana Reddy Somala , Shekhar Banoth , Janardhan Reddy Koduru","doi":"10.1016/j.inoche.2026.116217","DOIUrl":"10.1016/j.inoche.2026.116217","url":null,"abstract":"<div><div>Creating affordable and efficient electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) across different pH levels remains a significant challenge in renewable energy research. In this study, we report a novel hierarchical nanocomposite comprising CeO<sub>2</sub> and NiO nanospheres integrated with g-C<sub>3</sub>N<sub>4</sub> nanosheets on nickel foam (NF), demonstrating bifunctional electrocatalytic activity toward HER and OER across alkaline, acidic, and neutral media. The g-C<sub>3</sub>N<sub>4</sub>/CeO<sub>2</sub>/NiO exhibits ultra-low overpotentials (0.064 V for HER and 0.281 V for OER at 50 mA/cm<sup>2</sup>) and excellent durability. The synergistic electron transfer between Ce<sup>3+</sup>/Ce<sup>4+</sup>and Ni<sup>2+</sup> in the porous g-C<sub>3</sub>N<sub>4</sub> matrix reduces intermediate binding energies and boosts electrocatalytic kinetics. A two-electrode electrolyzer assembled with this hybrid catalyst achieves efficient overall water splitting at low cell voltages of 1.72 V (alkaline), 1.92 V (acidic), and 1.98 V (neutral) at 200 mA/cm<sup>2</sup>. The superior performance is attributed to strong interfacial electron interactions among Ni<sup>2+</sup>, Ce<sup>3+</sup>/Ce<sup>4+</sup>, and the g-C<sub>3</sub>N<sub>4</sub> matrix, which optimize intermediate binding energies and accelerate reaction kinetics. These results highlight the g-C<sub>3</sub>N<sub>4</sub>/CeO<sub>2</sub>/NiO composite as a promising and versatile electrocatalyst for pH-universal water splitting.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116217"},"PeriodicalIF":5.4,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074376","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}
Pub Date : 2026-01-21DOI: 10.1016/j.inoche.2026.116207
Nurcan Kızılbulut , Nuray Yılmaz Baran , Talat Baran
Energy is essential for modern life, but reliance on fossil fuels is unsustainable due to environmental and health risks. Renewable hydrogen is a promising alternative, though challenges remain in its mild production and safe storage. Formic acid (FA), a liquid, non-explosive, biomass-derived hydrogen carrier, offers a safe and efficient route, making its selective catalytic dehydrogenation a key method for hydrogen generation. In this study, we fabricated amine-modified layered double hydroxide supported Pd nanoparticles (Pd@NiAl LDHs–NH2) as a catalyst for H2 production via FA dehydrogenation. The fabricated Pd@NiAl LDHs–NH2 nanocatalyst was successfully characterized by FT-IR, TEM, EDS, XRD, and EDS mapping analyses, showing Pd particle sizes of around 15 nm. Performed studies revealed that 50 mg of the Pd@NiAl LDHs–NH2 nanocatalyst exhibited the highest initial turnover frequency (TOF) of 267 h−1 within the first 10 min at 50 °C. The activation energy for Pd@NiAl LDHs–NH2 was calculated as 46.7 kJ/mol. The Pd@NiAl LDH–NH2 was also successfully recovered and reused three times in FA dehydrogenation.
{"title":"Palladium nanoparticles supported on amine-functionalized NiAl layered double hydroxides and investigation of their catalytic role against formic acid dehydrogenation","authors":"Nurcan Kızılbulut , Nuray Yılmaz Baran , Talat Baran","doi":"10.1016/j.inoche.2026.116207","DOIUrl":"10.1016/j.inoche.2026.116207","url":null,"abstract":"<div><div>Energy is essential for modern life, but reliance on fossil fuels is unsustainable due to environmental and health risks. Renewable hydrogen is a promising alternative, though challenges remain in its mild production and safe storage. Formic acid (FA), a liquid, non-explosive, biomass-derived hydrogen carrier, offers a safe and efficient route, making its selective catalytic dehydrogenation a key method for hydrogen generation. In this study, we fabricated amine-modified layered double hydroxide supported Pd nanoparticles (Pd@NiAl LDHs–NH<sub>2</sub>) as a catalyst for H<sub>2</sub> production via FA dehydrogenation. The fabricated Pd@NiAl LDHs–NH<sub>2</sub> nanocatalyst was successfully characterized by FT-IR, TEM, EDS, XRD, and EDS mapping analyses, showing Pd particle sizes of around 15 nm. Performed studies revealed that 50 mg of the Pd@NiAl LDHs–NH<sub>2</sub> nanocatalyst exhibited the highest initial turnover frequency (TOF) of 267 h<sup>−1</sup> within the first 10 min at 50 °C. The activation energy for Pd@NiAl LDHs–NH<sub>2</sub> was calculated as 46.7 kJ/mol. The Pd@NiAl LDH–NH<sub>2</sub> was also successfully recovered and reused three times in FA dehydrogenation.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116207"},"PeriodicalIF":5.4,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074382","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}
Pub Date : 2026-01-21DOI: 10.1016/j.inoche.2026.116210
Xiao Wang, Yu Zhang, Donghui Wang, Yongqi Duan, Yuekai Zhao, Tao Xue, Kunping Guo, Jin Huang, Fanghui Zhang
In inorganic perovskite solar cells (IPSCs), interfacial stability and defect passivation remain key challenges for achieving higher photovoltaic performance. Here, we propose a buried interfacial molecular engineering strategy using pyridine-3,5-dicarboxylic acid (PDC) as a bifunctional passivator to simultaneously improve crystallinity and suppress defects. The carboxylic groups of PDC chemically anchor onto the TiO2 surface through esterification with surface hydroxyls, forming a robust interfacial layer, while the nitrogen atom in the pyridine ring coordinates with undercoordinated Pb2+ ions in the perovskite absorber. This dual interaction effectively passivates defects on both TiO2 and perovskite surfaces, facilitating efficient electron extraction, improving film crystallinity, and suppressing nonradiative recombination. As a result, the PDC-modified devices deliver a significantly enhanced power conversion efficiency of 14.05%, compared to 9.81% for the control devices, representing an improvement of over 43% under standard AM 1.5G illumination. In addition, the PDC-treated devices exhibit markedly improved environmental and mechanical stability, retaining approximately 90% of their initial efficiency after 500 h of continuous operation without encapsulation. This work demonstrates an effective interfacial molecular engineering strategy for simultaneously boosting efficiency and long-term stability in inorganic perovskite solar cells.
{"title":"Bifunctional interface engineering for stable perovskite photovoltaics: Synergistic crystallization and defect passivation with a pyridine-3,5-dicarboxylic acid interlayer","authors":"Xiao Wang, Yu Zhang, Donghui Wang, Yongqi Duan, Yuekai Zhao, Tao Xue, Kunping Guo, Jin Huang, Fanghui Zhang","doi":"10.1016/j.inoche.2026.116210","DOIUrl":"10.1016/j.inoche.2026.116210","url":null,"abstract":"<div><div>In inorganic perovskite solar cells (IPSCs), interfacial stability and defect passivation remain key challenges for achieving higher photovoltaic performance. Here, we propose a buried interfacial molecular engineering strategy using pyridine-3,5-dicarboxylic acid (PDC) as a bifunctional passivator to simultaneously improve crystallinity and suppress defects. The carboxylic groups of PDC chemically anchor onto the TiO<sub>2</sub> surface through esterification with surface hydroxyls, forming a robust interfacial layer, while the nitrogen atom in the pyridine ring coordinates with undercoordinated Pb<sup>2+</sup> ions in the perovskite absorber. This dual interaction effectively passivates defects on both TiO<sub>2</sub> and perovskite surfaces, facilitating efficient electron extraction, improving film crystallinity, and suppressing nonradiative recombination. As a result, the PDC-modified devices deliver a significantly enhanced power conversion efficiency of 14.05%, compared to 9.81% for the control devices, representing an improvement of over 43% under standard AM 1.5G illumination. In addition, the PDC-treated devices exhibit markedly improved environmental and mechanical stability, retaining approximately 90% of their initial efficiency after 500 h of continuous operation without encapsulation. This work demonstrates an effective interfacial molecular engineering strategy for simultaneously boosting efficiency and long-term stability in inorganic perovskite solar cells.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116210"},"PeriodicalIF":5.4,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035541","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}
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