Citation: Tian Zhiming, Wang Xinyue. Preparation of La-doped ZnO/SBA-15 and Its Photocatalytic Degradation to Malachite Green[J]. Chemistry, ;2019, 82(4): 334-339. shu

Preparation of La-doped ZnO/SBA-15 and Its Photocatalytic Degradation to Malachite Green

College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006

Received Date: 17 September 2018
Accepted Date: 25 December 2018

Figures(9)

La-ZnO/SBA-15 catalyst was prepared by sol-gel method. The composition and properties of La-ZnO/SBA-15 were characterized by XRD, TG-DSC, XPS, SEM and N₂ adsorption and desorption. Its catalytic activity on malachite green (MG) solution was investigated. The results showed that the doped SBA-15 still maintains an ordered two-dimensional hexagonal structure. When n(Zn):n(Si)=1, visible light irradiation for 2 h, the degradation rate of MG was 99.8%. Kinetic studies showed that the degradation of MG solution by the catalyst is consistent with the first-order reaction kinetics.
- SBA-15,
- ZnO,
- La-doped,
- Photocatalytic degradation,
- Malachite green (MG)
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沈阳化工大学材料科学与工程学院沈阳 110142