Novel MoSe2 hierarchical microspheres for applications in visible-light-driven advanced oxidation processes

被引：62
作者：
Dai, Chu [1 ]
Qing, Enping [1 ]
Li, Yong [1 ]
Zhou, Zhaoxin [1 ]
Yang, Chao [1 ]
Tian, Xike [1 ]
Wang, Yanxin [2 ]
机构：
[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China
[2] China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China
来源：
NANOSCALE | 2015年 / 7卷 / 47期
基金：
中国国家自然科学基金;
关键词：
PHOTOCATALYTIC ACTIVITY; ELECTRONIC-STRUCTURE; DEGRADATION; RADICALS; PHOTODEGRADATION; NANOSTRUCTURES; GENERATION; NANOSHEETS; CHITOSAN; DYES;
D O I：
10.1039/c5nr06527e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Advanced oxidation processes as a green technology have been adopted by combining the semiconductor catalyst MoSe2 with H2O2 under visible radiation. And novel three-dimensional self-assembled molybdenum diselenide (MoSe2) hierarchical microspheres from nanosheets were produced by using organic, selenium cyanoacetic acid sodium (NCSeCH2COONa) as the source of Se. The obtained products possess good crystallinity and present hierarchical structures with the average diameter of 1 mu m. The band gap of MoSe2 microspheres is 1.68 eV and they present excellent photocatalytic activity under visible light irradiation in the MoSe2-H2O2 system. This effective photocatalytic mechanism was investigated in this study and can be attributed to visible-light-driven advanced oxidation processes.
引用
收藏
页码：19970 / 19976
页数：7
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