Citation: Zhu Hanlin, Liang Kuang. Study on Visible-Light Photocatalytic Properties of Oxygen Defect SnO₂ Nanoparticles[J]. Chemistry, ;2016, 79(4): 327-331,348. shu

Study on Visible-Light Photocatalytic Properties of Oxygen Defect SnO₂ Nanoparticles

Zhu Hanlin ¹ ,
Liang Kuang ²

1.
1. The Affiliated High School of University of Science and Technology of China, Hefei 230026;
2.
2. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026

Received Date: 13 August 2015
Available Online: 20 October 2015

A novel photocatalyst consisting of oxygen-deficient SnO₂ nanoparticles which can effectively degrade methyl orange (MO) under visible light was synthesized by a simple hydrothermal method and characterized by XRD, TEM, HRTEM and UV-Vis diffuse reflectance spectra. The results showed that the band gap of as-prepared catalyst can be lowered to 2.90eV, and thus the visible light absorption of the catalyst can be enhanced. The photocatalytic activity of the as-prepared catalyst was evaluated by degradation of methyl orange (MO) under irradiation of visible light. The degradation rate of MO (10 mg/L) by oxygen-deficient SnO₂ nanoparticles (1g/L) can reach above 99% in 40 min under visible light illumination. Because of simple synthesis, high catalytic performance, low costs and mild reaction environment, the synthesized catalyst provides a new approach to solve the problem of organic dyes pollution in environment.
- Oxygen defect,
- SnO₂,
- Hydrothermal synthesis,
- Methyl orange,
- Photocatalytic degradation
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沈阳化工大学材料科学与工程学院沈阳 110142

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通讯作者: 陈斌, bchen63@163.com

Study on Visible-Light Photocatalytic Properties of Oxygen Defect SnO₂ Nanoparticles