Journal of Photochemistry and Photobiology A-chemistry最新文献

{"title":"Enhanced photocatalytic hydrogen production coupled with tetracycline degradation using Ru-ZnIn2S4 nanostructures","authors":"Suping Zhang ,&nbsp;Shuang Zhou ,&nbsp;Qianchen Ou ,&nbsp;Likang Zhou ,&nbsp;Qiaoyi Xiao ,&nbsp;Yuan Lian ,&nbsp;Liping Guo ,&nbsp;Hongmei Wang","doi":"10.1016/j.jphotochem.2025.116441","DOIUrl":"10.1016/j.jphotochem.2025.116441","url":null,"abstract":"<div><div>Ru-doped ZnIn₂S₄ (Ru-ZnIn₂S₄) nanostructures were prepared by doping different amounts of Ru into ZnIn₂S₄ through a one-step hydrothermal method. The structure, morphology, band structure, light absorption and photoelectrochemical properties of as-prepared samples were characterized by a series of characterization methods such as XRD, TEM, SEM, UV–vis DRS, PL and TRPL. These results show that doping Ru into ZnIn₂S₄ effectively improves the separation and transfer efficiency of photogenerated electrons and holes. When the addition amount of RuCl₃ is 30 µmol, the photocatalytic hydrogen production performance reaches its optimum, achieving a hydrogen production rate of 5974.7 μmol·g⁻¹·h⁻¹, which is 15.9 times greater than that of pure ZnIn₂S₄. In the experiment of hydrogen production coupled with tetracycline (TC) degradation, the degradation rate of TC for 0.03Ru-ZnIn₂S₄ reaches 70.2 %, and the hydrogen production rate reaches up to 202.8 μmol·g⁻¹·h⁻¹, effectively achieving the hydrogen energy conversion and degradation of TC. This study presents a novel strategy for the treatment of wastewater by photocatalysis and realization of energy recovery as well as wastewater treatment.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116441"},"PeriodicalIF":4.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824470","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}

{"title":"Reddish-Orange emitting thermally stable Sm3+ doped Sr2LaSbO6 phosphor for applications in w-LEDs","authors":"Shikha Verma ,&nbsp;Labhansh Chaurasia ,&nbsp;Sheetal Kumari ,&nbsp;Aman Prasad ,&nbsp;A.S. Rao","doi":"10.1016/j.jphotochem.2025.116405","DOIUrl":"10.1016/j.jphotochem.2025.116405","url":null,"abstract":"<div><div>A series of Sm³⁺ ions activated Sr₂LaSbO₆ phosphors was synthesised using the traditional solid-state reaction (SSR) method. This work presents Sr₂LaSbO₆ as a novel host material, in contrast to previously examined Sm³⁺-doped phosphors. It uses its double perovskite structure and LaO₆ octahedral coordination to improve light efficiency and stability, an aspect not fully investigated in perovskite-based phosphors. The phase purity of the synthesized materials was inspected using X-ray diffraction (XRD) characterization technique. The luminescent properties were analysed by photoluminescence emission and excitation (PL) spectra, temperature dependent PL (TD-PL) and decay curves. The XRD results matched the standard JCPDS suggesting that the prepared samples comprise of a pure cubic phase structure. When subjected to 407 nm excitation, the phosphors exhibit intensity peaks at 612 nm corresponding to the transition ⁶G_5/2 → ⁵H_7/2. The PL intensity of the samples increased with the increasing concentration of Sm³⁺ ions until concentration quenching occurred at x = 3.0 mol%. The stability and activation energy of the phosphor was calculated with the help of temperature dependant photoluminescence and the phosphor was found out to be highly stable at high temperatures. Most white LEDs use a blue LED chip coated with a yellow phosphor (typically YAG:Ce – Yttrium Aluminium Garnet doped with Cerium). This YAG:Ce phosphor converts some of the blue light into longer wavelengths, producing a broad-spectrum white light. However, this method tends to be weaker in the deep red part of the spectrum, making the light appear cooler and sometimes slightly bluish resulting in high CCT and low CRI. In order to address the prevalent problem of weak red component in white LEDs, which frequently results in low colour rendering index (CRI), this study proposes a Sm³⁺-doped Sr₂LaSbO₆ phosphor with high reddish-orange emission. With its efficient 406 nm excitation, the phosphor complements commercial near-UV/blue LEDs and is hence ideal for real-world LED applications. With an activation energy of ΔE = 0.424 eV, it has a strong luminous thermal stability that outperforms several previously reported phosphors, guaranteeing better performance in high-temperature lighting and display technologies. Furthermore, the material has excellent colour purity (96%), putting its emission in the warm red–orange region, which is essential for producing high-quality white light in plasma display panels (PDPs) and solid-state lighting (SSL). These properties make this phosphor a highly efficient red-emitting component, significantly improving the color rendering and performance of w-LEDs.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116405"},"PeriodicalIF":4.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828457","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}

{"title":"Multilayer Au@SiO2@Ag@SiO2 composites enhanced surface Raman scattering for non-destructive trace detection","authors":"Huiqin Li,&nbsp;Dengqi Zhong,&nbsp;Shaotian Yan,&nbsp;Yanyu Tian,&nbsp;Hui Lei,&nbsp;Weiwei Zhao,&nbsp;Fenyan Wei,&nbsp;Shumei Dou","doi":"10.1016/j.jphotochem.2025.116439","DOIUrl":"10.1016/j.jphotochem.2025.116439","url":null,"abstract":"<div><div>In this work, a multilayer core–shell nanostructure with gold nanorods as the core and SiO₂, Ag, and SiO₂ shells, Au@SiO₂@Ag@SiO₂, was prepared and applied for trace detection by studying their Surface-enhanced Raman Scattering (SERS) properties. The silver layer thickness of this multilayer-coated composite nanomaterial was modified by changing the amount of AgNO₃ used during synthesis. Elemental mapping was employed to confirm the layered structure of Au@SiO₂@Ag@SiO₂. Raman scattering intensities were measured using Au@SiO₂@Ag@SiO₂ as the substrate and Rhodamine 6G (R6G), thiram, melamine, and piroxicam as the probe molecules. The detection limits of these probes were 10⁻⁹ M, 10⁻⁶ M, 10⁻³ M, and 10⁻³ M, respectively. The outer SiO₂ layer effectively protected Ag from oxidation, and the assay exhibited very stable reproducibility and repeatability. The multilayer Au@SiO₂@Ag@SiO₂ nanocomposite proposed in this study broadens the application of surface-enhanced Raman spectroscopy.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116439"},"PeriodicalIF":4.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821000","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}

{"title":"Accelerated depolymerization of rice straw-derived lignin to vanillin and guaiacol using γ-Fe2O3/N, Fe-TiO2 as novel photocatalyst under visible light in aqueous media","authors":"Nisha Mittal,&nbsp;Manpreet Kaur,&nbsp;Vinay Singh,&nbsp;Anshika Babbar,&nbsp;Tamanna Dua,&nbsp;Vasundhara Singh","doi":"10.1016/j.jphotochem.2025.116440","DOIUrl":"10.1016/j.jphotochem.2025.116440","url":null,"abstract":"<div><div>Vanillin and guaiacol, essential value-added chemicals widely utilized in the cosmetic and healthcare industries, have been sustainably derived from rice straw-derived lignin using a novel γ- Fe₂O₃/N, Fe-TiO₂ photocatalyst under visible light irradiation. A green approach employing a deep eutectic solvent (DES) was used to induce a bandgap shift, facilitating the activation of the photocatalyst in the visible range. The structural, physicochemical, and optical properties of the synthesized photocatalyst were well-analyzed using various analytical techniques. The optimal conditions for achieving maximum lignin depolymerization of 97.1% and a high yield of vanillin and guaiacol were determined to be an initial lignin concentration of 50 mg/L, a catalyst loading of 0.7 g/L, the addition of 1 mL/L H₂O₂, and a pH of 5, with a reaction duration of 4h. The enhanced photocatalytic activity of γ- Fe₂O₃/N, Fe-TiO₂, was attributed to its modified bandgap, enabling visible-light absorption and the generation of reactive oxygen species, as confirmed by scavenging studies. This study provides a significant contribution to the sustainable valorization of lignin from agricultural waste biomass, demonstrating the potential for the scalable production of vanillin and guaiacol under visible-light-driven photocatalysis.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116440"},"PeriodicalIF":4.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864873","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}

{"title":"Efficient Visible-Light-Driven degradation of amoxicillin antibiotic using reduced graphene oxide decorated copper oxide nanocomposite materials","authors":"Fayaz Hussain Kanhar ,&nbsp;Tajnees Pirzada ,&nbsp;Muzaffar Iqbal ,&nbsp;Ali Hyder ,&nbsp;Ayaz Ali Memon ,&nbsp;Khalid Hussain Thebo ,&nbsp;Mohsin Kazi","doi":"10.1016/j.jphotochem.2025.116438","DOIUrl":"10.1016/j.jphotochem.2025.116438","url":null,"abstract":"<div><div>Pharmaceutical contaminants have become a major source of pollution in water resources worldwide, with growing awareness of their profound health and environmental consequences. Therefore, the development of efficient, cost-effective, and sustainable methods for removing or degrading these pollutants from water is essential. Herein, the reduced graphene oxide nanosheets decorated with copper oxide (rGO-CuO) nanocomposite was prepared for the effective photocatalytic degradation of amoxicillin (AMX) antibiotic in water. The structural and morphological properties of the prepared rGO-CuO nanocomposite were thoroughly investigated using XRD, SEM, EDX, and AFM analyses. These studies showed that the as-prepared nanocomposite has a crystalline structure having the average size of 25 nm with high elemental purity and rough morphology. The synthesized rGO-CuO nanocomposite photocatalyst was further employed for the degradation of AMX antibiotic. By optimizing key experimental parameters, such as catalyst dosage (0.8 mg), proton source concentration (0.003 M), and sunlight exposure duration (10 min), an exceptional 98.7 % degradation of AMX was achieved. This remarkable outcome highlights the excellent photocatalytic performance of the rGO-CuO nanocomposite. Moreover, the as-prepared rGO-CuO-based photocatalyst can be effective at large-scale for the degradation of other antibiotics after optimization.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116438"},"PeriodicalIF":4.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808568","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}

{"title":"Unveiling the effect of SWCNT as the dopants of TiO2 in pharmaceutical mixture photocatalytic removal from water and wastewater","authors":"Natalia Walczak ,&nbsp;Agnieszka Krzyszczak-Turczyn ,&nbsp;Bożena Czech","doi":"10.1016/j.jphotochem.2025.116437","DOIUrl":"10.1016/j.jphotochem.2025.116437","url":null,"abstract":"<div><div>Increased pharmaceuticals and personal care products usage increases their disposal. Low biodegradability, poor removal during conventional treatment, and long-range transport make them persistent pollutants. Removal of such pollutants is of great importance nowadays and requires advanced techniques. Photocatalysis using visible light is a promising method for detoxifying water and wastewater. In the presented studies the effect of Single-Walled Carbon Nanotubes (SWCNT) on the activity of TiO₂-SiO₂ was tested. The photocatalysts were characterized by high available surface area (280–525 m² g⁻¹), and reduced band gap energy (2.84–3.03 eV) suggesting good photocatalytic behavior under vis irradiation. The broad characteristics of the photocatalysis revealed that the greatest changes in the photocatalysts’ properties were noted when the amount of doped SWCNT was between 1.7–3.5 wt%. k₁ values ranged from 0.0038 min⁻¹ (ibuprofen), 0.0204 min⁻¹ (carbamazepine), 0.0626 min⁻¹ (oseltamivir), to 0.0783 min⁻¹ (metoprolol). The effect of inorganic ions, dissolved organic matter, and ionic strength were estimated. The process mechanism was examined using radical scavengers and the process was performed using tap water and treated wastewater. The results confirmed that obtained materials with enhanced surface area and porosity, abundance of surface functional groups, and visible light activation should reveal a great potential for pollutant removal.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116437"},"PeriodicalIF":4.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808569","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}

{"title":"A novel fluorescent waterborne polyurethane-based Sm (III) ternary complex improves plant growth in light environments and promotes plant growth","authors":"Kaixuan Shao ,&nbsp;Shicong Pei ,&nbsp;Zhuqing Li ,&nbsp;Xiaojun She ,&nbsp;Yuqing Yang ,&nbsp;Hongrui Hu ,&nbsp;Mingdi Yang ,&nbsp;Kehua Zhang ,&nbsp;Hang Li ,&nbsp;Ping Wang ,&nbsp;Yunsheng Ding ,&nbsp;Xianhai Hu","doi":"10.1016/j.jphotochem.2025.116426","DOIUrl":"10.1016/j.jphotochem.2025.116426","url":null,"abstract":"<div><div>Polymeric rare earth complexes have attracted much attention due to their unique luminescence properties and application prospects. However, as an important component of polymeric rare earth complexes, Sm (III) complexes are rarely reported due to the lack of organic ligands matching the energy of Sm (III). Herein, A novel Sm(III) complexes (Sm(MPon)₃APhen) emitting red fluorescence is synthesized by using Sm(III) as the central ion and 1-(4-<em>tert</em>-butylphenyl)-3-(4-methoxyphenyl)-1,3-propanone (MPon) and 5-amino-1,10-phenanroline (APhen) as ligands, respectively. Then, A novel waterborne polyurethane-based complex [Sm(MP)₃AP]_x-WPU with orange-red fluorescence is prepared by modified acetone method using Sm(MPon)₃APhen as the end-blocking agent. Compared with Sm(MPon)₃APhen, the fluorescence emission peak of [Sm(MP)₃AP]_x-WPU is blue-shifted, and the fluorescence intensity is significantly enhanced with the increase of the amount of Sm(MPon)₃APhen. Notably, the strongest fluorescence emission peak of [Sm(MP)₃AP]_x-WPU is located in the red light band with the highest photosynthetic absorption efficiency of plants, which could significantly improve the light environment for plant growth and promote plant growth. More importantly, [Sm(MP)₃AP]_x-WPU is water as a dispersed phase, which is particularly safe and environmentally friendly during storage, transportation and use.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116426"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821001","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}

{"title":"CaCO3 modification of TiO2 electrodes in dye-sensitized solar cells: Enhanced of electron lifetime and efficiency","authors":"Mohammad Yazdanipanah ,&nbsp;Mohammad Reza Mohammadi","doi":"10.1016/j.jphotochem.2025.116418","DOIUrl":"10.1016/j.jphotochem.2025.116418","url":null,"abstract":"<div><div>Herein, we investigate the effects of CaCO₃ coating on TiO₂ photoanode electrodes for dye-sensitized solar cells (DSCs). TiO₂ films are coated with varying thicknesses of CaCO₃ using a spin-coating technique, and the resulting photoanodes are characterized for their structural, optical, and electrochemical properties. Field-emission scanning electron microscopy (FESEM) images reveal that the CaCO₃ coating formed uniform nanocube structures, enhancing the surface morphology and scattering properties of the photoanode. X-ray diffraction (XRD) analysis confirms the presence of both anatase-TiO₂ and calcite-CaCO₃ phases, while optical measurements indicate a slight increase in the bandgap of the CaCO₃-coated TiO₂ films. Photovoltaic testing demonstrates that the optimal CaCO₃ thickness (around 570 nm) significantly improved the power conversion efficiency (PCE) of DSSCs, achieving a maximum efficiency of 9.19 %, compared to 7.58 % for pristine TiO₂. Electrochemical impedance spectroscopy (EIS) and open-circuit voltage decay (OCVD) measurements reveal that the CaCO₃ coating reduced charge recombination, enhanced electron injection, and improved charge transport in the devices. Our results indicate that a thin CaCO₃ layer effectively enhances the photovoltaic performance of TiO₂-based DSCs by reducing electron recombination, improving dye adsorption, and enhancing electron injection, while thicker coatings can negatively affect device performance due to increased recombination and electron transport barriers. These findings provide valuable insights into the design of photoanodes for efficient DSCs, emphasizing the importance of optimizing the CaCO₃ coating thickness.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116418"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799484","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}

{"title":"Multiphase BiVO4 for environmental applications","authors":"Małgorzata Knapik,&nbsp;Anna Kusior,&nbsp;Magdalena Ziabka,&nbsp;Anita Trenczek-Zajac","doi":"10.1016/j.jphotochem.2025.116421","DOIUrl":"10.1016/j.jphotochem.2025.116421","url":null,"abstract":"<div><div>The synthesis of BiVO₄ multiphase photocatalysts was approached using a method and conditions designed to produce tetragonal-rich and monoclinic-rich materials with varying morphologies. The results of the SEM analysis indicated that a pH range of 3 to 7 during the hydrothermal process facilitates the formation of spherical particles with a diameter of 3.3–3.4 μm, comprising 6–7 nm crystals. Conversely, a pH value below 3 or the addition of CTAB as a surfactant resulted in the crystallization of nanocrystals with a size range of 0.5–5.0 μm, exhibiting well-defined facets. X-ray diffraction (XRD) analysis demonstrated that the former are predominantly tetragonal in variety, with a minor component of monoclinic. In the case of the latter, XRD in conjunction with electronic property analysis enabled the detection of the tetragonal variety in quantities below the detection threshold of the XRD, accompanied by the monoclinic variety. The monoclinic-rich BiVO₄ exhibited notable discrepancies in its electrokinetic parameters, including hydrothermal diameter, in comparison to the tetragonal-rich samples. Moreover, PL studies revealed that the monoclinic-rich samples exhibited up to a 100-fold reduction in emissions, with a decay time up to six times longer which is attributed to the presence of point defects. Monoclinic-rich samples also demonstrate enhanced activity with regard to the degradation of Rhodamine B and basic Fuchsin. In particular, the former exhibits superior performance, achieving results that are several times more effective. Radical scavenging tests showed that ^•OH radicals were responsible for degrading bF and RhB dyes. The enhanced photocatalytic properties of monoclinic-rich samples were ascribed to augmented absorption, restricted recombination of charge carriers, and the existence of point defects.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116421"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817679","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}

{"title":"Additive-free photocatalytic dehydrogenation of neat formic acid by A COF-Cu heterostructure","authors":"Xiaochen Li ,&nbsp;Xin Qin ,&nbsp;Cong Yu ,&nbsp;Lan Lin ,&nbsp;Jinchao Cao ,&nbsp;Qiang Chen ,&nbsp;Shi-Peng Sun ,&nbsp;Jingcai Chang ,&nbsp;Xinbo Wang","doi":"10.1016/j.jphotochem.2025.116422","DOIUrl":"10.1016/j.jphotochem.2025.116422","url":null,"abstract":"<div><div>Selective and efficient dehydrogenation of neat formic acid (FA) under controlled conditions, <em>eg.</em> light, is important yet scarce. Herein, an organic-metal heterostructurre of COF-Cu was constructed by incorporation of Cu²⁺ with a covalent organic framework AQ-COF. COF-Cu showed a remarkable photocatalytic FA dehydrogenation activity, without any solvent or base additive. The optimal H₂ evolution rate reached 190 mmol·g⁻¹·h⁻¹, surpassing most of the state-of-the-art catalyst. The significant performance enhancement of COF-Cu can be attributed to the effective charge transfer process occurring between AQ-COF and Cu²⁺. This study provides valuable insights for the design of efficient catalysts, crucial for advancing sustainable energy storage technologies.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"467 ","pages":"Article 116422"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792808","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}