Synthesis and photocatalytic properties of MgBi2O6 with Ag additions

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Zhong, Liansheng^1 ; Hu, Chaohao^1,2 ; Zhu, Binqing^1 ; Zhong, Yan^1,2 ; Zhou, Huaiying^2

School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin

541004, China^1

Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin

541004, China^2

关键词: Ag additions;    Energy dispersive x-ray;    Field emission scanning electron microscopy;    Low-temperature hydrothermal methods;    Photocatalytic activities;    Photocatalytic property;    Reflectance spectrum;    Visible-light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/2/022022/pdf
DOI  :  10.1088/1755-1315/121/2/022022

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Ag-doped MgBi2O6photocatalysts were synthesized by the low temperature hydrothermal method in combination with heat treatment reaction using NaBiO3•2H2O, MgCl2•6H2O, and AgNO3as raw materials. The products were characterized by using power X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Energy dispersive X-ray detector (EDS), and UV-Vis diffusion reflectance spectra. The photocatalytic activity of MgBi2O6with Ag additions was evaluated by degrading MB (10 mg/L) under visible light irradiation (λ > 420 nm). The results showed that in comparison with pure MgBi2O6, the photocatalytic activity of MgBi2O6with about 5% Ag concentration is increased by about 24% after 120 min reaction. The enhancement of catalytic activity of Ag-doped MgBi2O6photocatalysts should be related to the band structure, morphology and larger specific surface area.