Enhanced visible light photocatalytic activity of g-C3N4 assisted by hydrogen peroxide

被引：8
|
作者：
Chen, Quan-Liang [1 ]
Liu, Yi-Ling [1 ]
Tong, Li-Ge [1 ]
机构：
[1] Southwest Minzu Univ, Coll Chem & Environm Protect Engn, Chengdu 610041, Sichuan, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2018年 / 5卷 / 04期
关键词：
carbon nitride; photocatalyst; hydrogen peroxide; rhodamine B; degradation; GRAPHITIC CARBON NITRIDE; ORGANIC-DYES; NANOSHEETS; DEGRADATION; H2O2; NANOPARTICLES; EVOLUTION; REMOVAL; WATER; RHB;
D O I：
10.1088/2053-1591/aab8c7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Water pollution has caused much attention nowadays. Photocatalysis as a kind of advanced oxidation technology has been widely studied in the field of environmental pollution control. As a stable nonmetal photocatalyst, the photocatalytic activity of g-C3N4 assisted by H2O2 was investigated for the degradation of Rhodamine B (RhB) under visible light irradiation. The combination of g-C3N4 and H2O2 has much higher activity than that of pure g-C3N4 or H2O2. Neutral solution is preferred for the high phtotocatalytic activity of g-C3N4 with H2O2. The effect of the amount of catalyst, H2O2 concentration and RhB concentration was investigated. Photocatalytic mechanism study using radical scavenger showed free radicals O-2(-) and center dot OH are the main active species. g-C3N4 assisted by H2O2 showed good photostability and repeatability after five cycles of degradation experiment.
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页数：9
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