Quaternary heterostructured Ag-Bi2O2CO3/Bi3.64Mo0.36O6.55/Bi2MoO6 composite: Synthesis and enhanced visible-light-driven photocatalytic activity

被引：19

作者：

Lin, Xue ^{[1
]}

Guo, Xiaoyu ^{[1
]}

Shi, Weilong ^{[1
]}

Zhai, Hongju ^{[1
]}

Yan, Yongsheng ^{[2
]}

Wang, Qingwei ^{[1
]}

机构：

[1] Jilin Normal Univ, Key Lab Preparat & Applicat Environm Friendly Mat, Minist Educ, Siping 136000, Peoples R China

[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 229卷

基金：

中国博士后科学基金;

关键词：

Heterostructured; Ag; Bi2O2CO3; Bi3.64Mo0.36O6.55; Bi2MoO6; Photocatalysis; HYDROTHERMAL SYNTHESIS; HIERARCHICAL HETEROSTRUCTURES; PHENOL RED; NANOPARTICLES; PERFORMANCE; MICROSPHERES; NANOCOMPOSITES; CONSTRUCTION; MORPHOLOGY; SYSTEM;

D O I：

10.1016/j.jssc.2015.05.027

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, a novel quaternary heterostructured Ag-Bi2O2CO3/Bi3.64Mo0.36O6.55/Bi2MoO6 composite was fabricated through a low-temperature solution-phase route. The XRD, SEM, EDX and XPS results indicated the as-prepared sample is a four-phase composite of Bi2O2CO3, Bi3.64Mo0.36O6.55, Bi2MoO6, and Ag. The photocatalytic activities of the as-synthesized samples were evaluated towards the degradation of phenol red aqueous solution. The results showed that the as-synthesized Ag-Bi2O2CO3/Bi3.64Mo0.36O6.55/Bi2MoO6 photocatalysts displayed much higher photocatalytic activities in comparison with pure Bi3.64Mo0.36O6.55, pure Bi2MoO6, and Bi3.64Mo0.36O6.55/Bi2MoO6 composite. Among them, the 2.5% Ag-Bi2O2CO3/Bi3.64Mo0.36O6.55/Bi2MoO6 sample performed the best. The enhanced photocatalytic activity of the composite photocatalyst was attributed predominantly to the efficient separation of photoinduced electrons and holes. In addition, Ag nanoparticles were photodeposited on the surface of the composite to increase visible-light absorption via the surface plasmon resonance, which is also beneficial to the enhancement of photocatalytic performance. The possible photocatalytic mechanism of the quaternary heterostructure was also discussed in detail. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：68 / 77

页数：10

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