期刊
DALTON TRANSACTIONS
卷 49, 期 16, 页码 5143-5156出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0dt00271b
关键词
-
资金
- Chinese National Natural Science Foundation [21666001]
- new technology and system for clean energy catalytic production, major scientific project of North Minzu University [ZDZX201803]
- Ningxia low-grade resource high value utilization and environmental chemical integration technology innovation team project, North Minzu University
A novel zero-dimensional/two-dimensional CdxZn1-xS/Ni-MOF-74 (CZS/NMF) heterojunction was rationally constructed via a simple hydrothermal and physical mixing method. The results show that the CZS/NMF-4 composite has the best photocatalytic hydrogen evolution performance, generating 1712.3 mu mol of hydrogen within 5 h, approximately 10 times higher than the amount generated by pure CZS. This extraordinary enhanced photocatalytic hydrogen activity can be ascribed to the constitution of the direct Z-scheme heterojunction and the small size effect, as well as the intimate contact between the 0D CdxZn1-xS nanoparticles and the 2D Ni-MOF-74 sheets. The formation of the direct Z-scheme heterojunction can effectively reduce the migration resistance of light-generated carriers and dramatically promote the separation of photo-induced electrons and holes. Meanwhile, the size effect shortens the electron transfer distance which effectively decreases the recombination possibility of photo-induced electron-hole pairs. Furthermore, the 0D/2D spatial structure of CZS/NMF-4 dramatically reduces the agglomeration of CZS nanoparticles, which provides more active sites for the process of hydrogen evolution. In general, this work provides new inspiration for the application of combinations between progressively developing new MOF materials and the traditional CdxZn1-xS photocatalyst according to the construction of a special spatial structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据