Strongly coupled polyoxometalates/oxygen doped g-C3N4 nanocomposites as Fenton-like catalysts for efficient photodegradation of sulfosalicylic acid

被引：37

作者：

An, Xiaoqiang ^{[2
,5
]}

Wu, Siqi ^{[1
,4
]}

Tang, Qingwen ^{[1
,3
]}

Lan, Huachun ^{[2
,5
]}

Tang, Yulin ^{[1
,3
]}

Liu, Huijuan ^{[1
,4
]}

Qu, Jiuhui ^{[1
,4
]}

机构：

[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China

[2] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China

[3] Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541006, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Tsinghua Univ, Res Ctr Water Qual & Ecol, Beijing 100084, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2018年 / 112卷

基金：

中国国家自然科学基金;

关键词：

Carbon nitride; Fenton-like reaction; Polyoxometalates; Oxygen doping; Advanced oxidation processes; GRAPHITIC CARBON NITRIDE; HOMOGENEOUS PHOTO-FENTON; PHOTOCATALYTIC ACTIVITY; FACILE SYNTHESIS; OXYGEN; LIGHT; DEGRADATION; ORANGE; C3N4; UV;

D O I：

10.1016/j.catcom.2018.03.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe-containing polyoxometalate clusters were coupled with carbon nitride to construct heterogeneous Fenton-like photocatalysts. Oxygen doping of carbon nitride was beneficial for the formation of strongly coupled interfaces, which not only contributed to the surface activation of oxygen molecules, but also facilitated the charge transfer from carbon nitride to polyoxometalate clusters. Due to the enhanced ability for generating peroxide radicals and the increased reactive sites for Fenton-like reactions, strongly coupled composites presented 6 times higher activity for the degradation of sulfosalicylic acid, compared to pristine carbon nitride. Our work offers an avenue to construct polyoxometalates/carbon nitride composite catalysts for synergistic contaminant removal.

引用

页码：63 / 67

页数：5

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