Photocatalytic activity study on degradation of methylene blue by zinc oxide based nanomaterials

被引：0

作者：

Cheng H. ^{[1
]}

Song H. ^{[2
]}

机构：

[1] Analytical and Testing Center, Huazhong University of Science and Technology, Wuhan

[2] Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan

来源：

Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2018年 / 46卷 / 04期

关键词：

Degradation; Methylene blue; Photocatalysis; Photocatalytic activity; ZnO;

D O I：

10.13245/j.hust.180419

中图分类号：

学科分类号：

摘要：

ZnO powder was used as photocatalyst, and methylene blue was the research object, thus, UV-Vis was used to analyze the photo-catalytic degradation. Influence of pH and some kinds of anions (NO3 -, SO4 2-, F-, Cl-, Br-) to the degradation of methylene blue were investigated. Besides, the mechanism of photocatalytic reaction of ZnO was studied by Fourier transform infrared spectroscopy (FTIR). Experiment results show that pH=10 is the optimal acidity of the photo-catalytic;adding inorganic anions (NO3 -, SO4 2-) and halogen ions (F-, Cl-, Br-) into the solution can inhibite the photocatalytic effect;the inhibition of NO3 - is greater than that of SO4 2-, and the difference of halogen ion inhibition was Br->F->Cl-. © 2018, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.

引用

页码：105 / 109

页数：4

共 2 条

[1]

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[2]

Linsebigler A.L., Lu G., Yates J.T., Photocatalysis on TiO<sub>2</sub> surfaces: principles, mechanisms, and selected results, Chemical Reviews, 95, 3, pp. 735-758, (1995)

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