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Metal‐Organic Framework Templated Z‐Scheme ZnIn2S4/Bi2S3 Hierarchical Heterojunction for Photocatalytic H2O2 Production from Wastewater
Small ( IF 13.3 ) Pub Date : 2024-05-15 , DOI: 10.1002/smll.202403268
Dingliang Dai 1 , Jianhao Qiu 1 , Guanglu Xia 1 , Yong Tang 1 , Qiying Liu 1 , Yixin Li 1 , Biyao Fang 1 , Jianfeng Yao 1
Affiliation  

Metal‐organic framework derived materials received a lot of attention due to their significant benefits in photocatalytic reactions. In this work, a Z‐scheme ZnIn2S4/Bi2S3 hierarchical heterojunction is first developed by a one‐pot method using CAU‐17 as a template. The specific preparation method endows an intimate interface contact between these two monomers, and CAU‐17‐derived Bi2S3 possesses a high surface area and porosity, resulting in an efficient charge separation and O2 capture. Thus, for photocatalytic H2O2 production from the O2 reduction reaction, the ZnIn2S4/Bi2S3 heterojunction can achieve an H2O2 yield of 995 µmol L−1 in pure water and ambient air under visible light, 4.5 and 4 times that of ZnIn2S4 and Bi2S3, respectively. In addition, in tetracycline solution, ZnIn2S4/Bi2S3 can degrade tetracycline with a degradation rate of 95% by photocatalysis, and at the same time, a final H2O2 production yield of 1223 µmol L−1 is reached. Similarly, high yields of H2O2 are also obtained from wastewater containing o‐nitrophenol, acid golden yellow, or acid red, and these pollutants are effectively degraded. This work reveals the potential of metal‐organic framework‐derived materials in photocatalysis, as well as provides insights into H2O2 green synthesis and wastewater treatment.

中文翻译:


金属有机框架模板化 Z 型 ZnIn2S4/Bi2S3 分层异质结用于废水光催化生产 H2O2



金属有机骨架衍生材料因其在光催化反应中的显着优点而受到广泛关注。在这项工作中,首先以 CAU-17 作为模板,通过一锅法开发了 Z 型 ZnIn2S4/Bi2S3 分级异质结。特定的制备方法使这两种单体之间具有紧密的界面接触,并且 CAU-17 衍生的 Bi2S3 具有高表面积和孔隙率,从而实现有效的电荷分离和 O2 捕获。因此,对于光催化O2还原反应生成H2O2,ZnIn2S4/Bi2S3异质结在可见光下纯水和环境空气中可以实现995 µmol L−1的H2O2产率,分别是ZnIn2S4和Bi2S3的4.5和4倍。此外,在四环素溶液中,ZnIn2S4/Bi2S3可以通过光催化降解四环素,降解率达到95%,同时最终H2O2产量达到1223 µmol L−1。同样,含有邻硝基苯酚、酸性金黄、酸性红的废水也能获得高产率的H2O2,这些污染物得到有效降解。这项工作揭示了金属有机骨架衍生材料在光催化方面的潜力,并为 H2O2 绿色合成和废水处理提供了见解。
更新日期:2024-05-15
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