Fe2O3/ZnO/ZnFe2O4 composites for the efficient photocatalytic degradation of organic dyes under visible light

被引：27

作者：

Li, Xiaojuan ^{[1
]}

Jin, Bo ^{[1
]}

Huang, Jingwen ^{[1
]}

Zhang, Qingchun ^{[1
]}

Peng, Rufang ^{[1
]}

Chu, Shijin ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, State Key Lab Cultivat Base Nonmet Composites & F, Mianyang 621010, Peoples R China

来源：

SOLID STATE SCIENCES | 2018年 / 80卷

基金：

中国国家自然科学基金;

关键词：

Fe2O3/ZnO/ZnFe2O4; composites; Calcination; Visible light photocatalytic; Organic dyes removal; FACILE SYNTHESIS; WATER; ZNFE2O4; NANOPARTICLES; ZNO/ZNFE2O4; CDS; PHOTODEGRADATION; NANOSTRUCTURES; AG3PO4/ZNFE2O4; FE2O3/ZNFE2O4;

D O I：

10.1016/j.solidstatesciences.2018.03.016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this study, novel ternary Fe2O3/ZnO/ZnFe2O4 (ZFO) composites were successfully prepared through a simple hydrothermal reaction with subsequent thermal treatment. The as-prepared products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) analysis, Barrett-Joyner-Halenda (BJH) measurement, and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). The photocatalytic degradation of rhodamine B (Rh B) under visible light irradiation indicated that the ZFO composites calcined at 500 degrees C has the best photocatalytic activity (the photocatalytic degradation efficiency can reach up to 95.7% within 60 min) and can maintain a stable photocatalytic degradation efficiency for at least three cycles. In addition, the photocatalytic activity of ZFO composites toward dye decomposition follows the order cationic Rh B> anionic methyl orange. Finally, using different scavengers, superoxide and hydroxyl radicals were identified as the primary active species during the degradation reaction of Rh B. (C) 2018 Elsevier Masson SAS. All rights reserved.

引用

页码：6 / 14

页数：9

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