Double activating peroxymonosulfate with g-C3N4/Fe2(MoO4)3 to enhance photocatalytic activity under visible light irradiation

被引:15
作者
Li, Di [1 ]
Zhao, Qianqian [1 ]
Ren, Qiaoxia [1 ]
Song, Ziyue [1 ]
Zhang, Qiuli [1 ]
Long, Mingyang [1 ]
Li, Hongmiao [1 ]
机构
[1] Xian Univ Architecture & Technol, Sch Chem & Chem Engn, Xian 710055, Peoples R China
基金
中国国家自然科学基金;
关键词
CARBON NITRIDE NANOSHEETS; IN-SITU SYNTHESIS; EFFICIENT DEGRADATION; INORGANIC-IONS; HETEROJUNCTION PHOTOCATALYST; HETEROGENEOUS CATALYSTS; HYDROGEN EVOLUTION; FACILE SYNTHESIS; MICROCYSTIN-LR; BISPHENOL-A;
D O I
10.1039/d1nj02915k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Fe-2(MoO4)(3) photocatalysts were synthesized by a simple hydrothermal method. Fe-2(MoO4)(3) photocatalysts showed lower photocatalytic activity for the degradation of methylene blue under visible light irradiation. After compositing with g-C3N4, the photocatalytic activity of Fe-2(MoO4)(3) was enhanced obviously. The enhanced photocatalytic activity of the g-C3N4/Fe-2(MoO4)(3) photocatalysts could be attributed to the effective separation of the photogenerated e(-)/h(+) pairs. In order to further enhance the degradation efficiency of g-C3N4/Fe-2(MoO4)(3), g-C3N4/Fe-2(MoO4)(3) was used to double activate peroxymonosulfate to degrade methylene blue. The influences of peroxymonosulfate dosage, pH value, inorganic anions and methylene blue concentration on double activating peroxymonosulfate to degrade methylene blue were investigated in detail. The mechanism of g-C3N4/Fe-2(MoO4)(3) double activating peroxymonosulfate was proved by radical quenching experiments, which proved that SO4- dominated the degradation of methylene blue.
引用
收藏
页码:15818 / 15830
页数:13
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