Facile Fabrication of Fe2O3/Nitrogen Deficient g-C3N4-x Composite Catalysts with Enhanced Photocatalytic Performances

被引:6
作者
Liu Qi [1 ]
Zhang Shici [1 ]
Li Ermao [1 ]
Zhang Yi [2 ]
Xia Shibin [1 ]
机构
[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China
[2] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
来源
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2019年 / 34卷 / 05期
基金
中国国家自然科学基金;
关键词
Fe2O3/nitrogen deficient g-C3N4-x; characterization; carbon materials; heterojunction; efficient photocatalytic activity; GRAPHITIC CARBON NITRIDE; STEP; HETEROJUNCTIONS; DEGRADATION; POLLUTANTS; EFFICIENT; DEFECT; CL;
D O I
10.1007/s11595-019-2153-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The modification of graphitic carbon nitride can significantly improve the photocatalytic performance of graphitic carbon nitride (g-C3N4). Fe2O3/nitrogen-deficient g-C3N4-x composite catalysts were prepared with dicyandiamide as the precursor and Fe3+ doped in this study. The composite catalysts were characterized by XRD, SEM, FT-IR, XPS and photocurrent measurements. Close interaction occurred between Fe2O3 and nitrogen deficient g-C3N4-x, more photogenerated electrons were created and effectively separated from the holes, resulting in a decrease of photocarrier recombination, and thus enhancing the photocurrent. Photocatalytic performance experiments showed that Fe2O3 / nitrogen deficient g-C3N4-x could utilize low-energy visible light more efficiently than pure g-C3N4, and the removal rate was 92% in 60 minutes.
引用
收藏
页码:1018 / 1023
页数:6
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