Synthesis of M(M=Co2+,Co2+/Ni2+)-doped FeS2 Nanospheres with Enhanced Visible-light-induced Photocatalytic Activity

被引：0

作者：

王燕舞 ^{[1
,2
]}

张学洪 ^{[1
,2
]}

JI Yuchun ^{[3
]}

ZHENG Guoyuan ^{[3
]}

王吉林 ^{[3
]}

LONG Fei ^{[3
]}

机构：

[1] College of Light Industry and Food Engineering, Guangxi University

[2] Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology

[3] School of Materials Science and Engineering, Key Laboratory of Nonferrous Material and New Processing Technology of Ministry of Education, Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials

来源：

Journal of Wuhan University of Technology(Materials Science) | 2018年 / 33卷 / 04期

基金：

中国国家自然科学基金;

关键词：

FeS2; solvothermal method; doping; photocatalytic; methylene blue;

D O I：

暂无

中图分类号：

O643.36 [催化剂]; O644.1 [光化学];

学科分类号：

摘要：

Nano-spherical Co2+-doped FeS2was synthesized through a simple solvothermal method. The products were investigated using XRD, FE-SEM, BET, ICP, EDS, TEM, HRTEM, XPS, and UV-vis spectroscopy. The results indicated that Co2+ion could change the particle nucleation process and inhibited the particle growth of FeS2. In addition, when the content of doped Co2+was 15%, the degradation efficiency of methylene blue(MB) achieved 60.72% after 210 min irradiation, which increased by 52.01% than that of the undoped FeS2. Moreover, comparison experiments also demonstrated that the M(M=Co2+, Co2+/Ni2+)-doped FeS2photocatalytic activity efficiency sequence was Co2+> Ni2+>Co2+/Ni2+. This is ascribed to the fact that the Co2+doping could induce the absorption edge shifting into the visible-light region and increased the surface area of the samples. The effect mechanisms of M-doping on the band gap and the photocatalytic activity of FeS2were also discussed.

引用

页码：802 / 811

页数：10

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