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Constructing Fe-MOF-Derived Z-Scheme Photocatalysts with Enhanced Charge Transport: Nanointerface and Carbon Sheath Synergistic Effect
Li, Ya2,3,4; Xia, Yu5; Liu, Kuiliang2,3,4; Ye, Kaihang6; Wang, Qiushi6; Zhang, Shanqing1; Huang, Yongchao2,3,4; Liu, Hong7
2020-06-03
摘要Creatively constructing Z-scheme composites is a promising and common strategy for designing effective photocatalyst systems. Herein, we synthesized Z-scheme Fe2O3@Ag-ZnOgC heterostructures from the Fe-MOFs and applied it to photodegradation of tetracycline and methylene blue pollutants in wastewater. The optimized sample exhibits a remarkable performance as well as stability under visible light irradiation. The calculating and experimental results demonstrate that the Fe2O3@ ZnO nanointerface and carbon sheath together boost the transfer efficiency of photogenerated carriers and absorption ability, thereby improving the photocatalytic activity. Furthermore, detailed mechanism investigation reveals the pivotal role of reactive oxygen species ((OH)-O-center dot and O-center dot(2)-) generated, resulting in remarkable performance. In addition, cell biology experiments reveal that the wastewater after photocatalytic treatment has good biological compatibility, which is important for applications. This work provides valuable information for constructing high-performance Z-scheme photocatalysts from MOFs for environmental treatment.
关键词photocatalysis Z-scheme nanointerface carbon sheath environmental treatment
DOI10.1021/acsami.0c06601
发表期刊ACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
卷号12期号:22页码:25494-25502
通讯作者Zhang, Shanqing(s.zhang@griffith.edu.au) ; Huang, Yongchao(huangych@gzhu.edu.cn)
收录类别SCI
WOS记录号WOS:000538515700103
语种英语