Construction of S-scheme UiO-66-NH2/Zn0.4Cd0.6S hybrid architectures with strong interfacial interactions triggering efficient photocatalytic H2O2 production, nitrogen fixation, and water splitting
Wei Chen, Shu-Zhen Lin, Zhenjun Song, Guo-Bo Huang, Min Zhang
{"title":"Construction of S-scheme UiO-66-NH2/Zn0.4Cd0.6S hybrid architectures with strong interfacial interactions triggering efficient photocatalytic H2O2 production, nitrogen fixation, and water splitting","authors":"Wei Chen, Shu-Zhen Lin, Zhenjun Song, Guo-Bo Huang, Min Zhang","doi":"10.1016/j.jmst.2024.12.092","DOIUrl":null,"url":null,"abstract":"Herein, UiO-66-NH<sub>2</sub> nanoparticles were solvothermally immobilized onto Zn<sub>0.4</sub>Cd<sub>0.6</sub>S nanorods in varying amounts. The resulting UiO-66-NH<sub>2</sub>/Zn<sub>0.4</sub>Cd<sub>0.6</sub>S hybrid architectures demonstrated UiO-66-NH<sub>2</sub> content-dependent photocatalytic activity for visible-light-driven hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production from pure water. Notably, the optimized UiO-66-NH<sub>2</sub>/Zn<sub>0.4</sub>Cd<sub>0.6</sub>S-0.2 catalyst achieved the highest H<sub>2</sub>O<sub>2</sub> yield under visible-light illumination, surpassing those of pure UiO-66-NH<sub>2</sub> and bare Zn<sub>0.4</sub>Cd<sub>0.6</sub>S by factors of 81.12 and 2.22, respectively. In addition, the UiO-66-NH<sub>2</sub>/Zn<sub>0.4</sub>Cd<sub>0.6</sub>S-0.2 sample exhibited outstanding photocatalytic efficiency, achieving an NH<sub>3</sub> concentration of 25.02 ± 0.68 mg·L<sup>−1</sup> after 1 h of visible-light exposure and an H<sub>2</sub> evolution of 487.12 mmol g<sup>−1</sup> following 3 h of irradiation. The notable enhancement in the photocatalytic performance was attributed to efficient S-scheme charge transfer, as confirmed by transient absorption spectroscopy. The S-scheme charge migration mechanism in the UiO-66-NH<sub>2</sub>/Zn<sub>0.4</sub>Cd<sub>0.6</sub>S system was further validated by electron paramagnetic resonance, density functional theory calculations, and <em>in situ</em> irradiated X-ray photoelectron spectroscopy. Overall, this study presents a promising strategy for designing highly efficient hybrid architectures for photocatalytic applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"16 1","pages":""},"PeriodicalIF":11.2000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science & Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jmst.2024.12.092","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Herein, UiO-66-NH2 nanoparticles were solvothermally immobilized onto Zn0.4Cd0.6S nanorods in varying amounts. The resulting UiO-66-NH2/Zn0.4Cd0.6S hybrid architectures demonstrated UiO-66-NH2 content-dependent photocatalytic activity for visible-light-driven hydrogen peroxide (H2O2) production from pure water. Notably, the optimized UiO-66-NH2/Zn0.4Cd0.6S-0.2 catalyst achieved the highest H2O2 yield under visible-light illumination, surpassing those of pure UiO-66-NH2 and bare Zn0.4Cd0.6S by factors of 81.12 and 2.22, respectively. In addition, the UiO-66-NH2/Zn0.4Cd0.6S-0.2 sample exhibited outstanding photocatalytic efficiency, achieving an NH3 concentration of 25.02 ± 0.68 mg·L−1 after 1 h of visible-light exposure and an H2 evolution of 487.12 mmol g−1 following 3 h of irradiation. The notable enhancement in the photocatalytic performance was attributed to efficient S-scheme charge transfer, as confirmed by transient absorption spectroscopy. The S-scheme charge migration mechanism in the UiO-66-NH2/Zn0.4Cd0.6S system was further validated by electron paramagnetic resonance, density functional theory calculations, and in situ irradiated X-ray photoelectron spectroscopy. Overall, this study presents a promising strategy for designing highly efficient hybrid architectures for photocatalytic applications.
期刊介绍:
Journal of Materials Science & Technology strives to promote global collaboration in the field of materials science and technology. It primarily publishes original research papers, invited review articles, letters, research notes, and summaries of scientific achievements. The journal covers a wide range of materials science and technology topics, including metallic materials, inorganic nonmetallic materials, and composite materials.