期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 923, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.166293
关键词
(SiO32- Cu2+); ?-Fe2O3; SCF; MoS2; Direct Z-scheme heterojunction; Defect; Photocatalytic activity
资金
- National Natural Science Foundation of China [21973026]
- Natural Science Foundation of Hebei Province [B2021205010, B2013205069]
- Technology Innovation Project of Hebei Normal University [L2021K02]
In this study, defect-enriched SCF/MoS2 direct Z-scheme composites were successfully prepared and demonstrated to exhibit superior photocatalytic activity for visible light degradation of organic pollutants.
Construction of Z-scheme photocatalyst is of great attention. Herein, the (SiO32-, Cu2+) - alpha-Fe2O3 (SCF) with abundant oxygen vacancies (OVs) was obtained, and defect-enriched SCF/MoS2 direct Z-scheme composites were successfully prepared using a hydrothermal method. The composites exhibited higher photocatalytic-Fenton activity compared with single-component SCF and MoS2. The as-prepared SCF/MoS2-2 was found to be an effective visible-light-driven photocatalyst for p-nitrophenol (p-NP) degradation. Under the syner-getic action of OV defects, photo-Fenton, and Z-scheme heterojunction, more active species were produced in the degradation system, thereby resulting in the rapid degradation of p-NP.(c) 2022 Published by Elsevier B.V.
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