Facile synthesis of novel Ag/AgI/BiOI composites with highly enhanced visible light photocatalytic performances

被引：64

作者：

Cao, Jing ^{[1
,2
]}

Zhao, Yijie ^{[1
]}

Lin, Haili ^{[1
]}

Xu, Benyan ^{[1
]}

Chen, Shifu ^{[1
]}

机构：

[1] Huaibei Normal Univ, Coll Chem & Mat Sci, Huaibei 235000, Anhui, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2013年 / 206卷

关键词：

Ag/AgI/BiOI; Ion-exchange; Photoreduction; Photocalysis; SURFACE-PLASMON RESONANCE; ONE-STEP SYNTHESIS; BIOX X; ORGANIC CONTAMINANTS; EFFICIENT; TIO2; DEGRADATION; BR; CL; DECOMPOSITION;

D O I：

10.1016/j.jssc.2013.07.028

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel Ag/AgI/BiOI composites were controllably synthesized via a facile ion-exchange followed by photoreduction strategy by using hierarchical BiOI microflower as substrate. The as-prepared Ag/AgI/BiOI composites were studied by X-ray powder diffractometer (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) surface area analyzer and UV-vis diffuse reflectance spectroscopy (DRS). Under visible light (lambda>420 nm), Ag/AgI/BiOI displayed highly enhanced photocatalytic activities for degradation of methyl orange (MO) compared to the pure hierarchical BiOI, which was mainly ascribed to the highly efficient separation of electrons and holes through the closely contacted interfaces in the Ag/AgI/BiOI ternary system. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：38 / 44

页数：7

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