Enhanced photocatalytic activity of Gd3+ doped TiO2 and Gd2O3 modified TiO2 prepared via ball milling method

2019 ◽  
Vol 37 (8) ◽  
pp. 845-852 ◽  
Author(s):  
Di Wu ◽  
Chen Li ◽  
Dashuai Zhang ◽  
Lili Wang ◽  
Xiaopeng Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ball Milling ◽  
Doped Tio2 ◽  
Milling Method

Study on the Heterojunction Photocatalyst Nb2WO8/ZnO Prepared by Ball Milling Method

2011 ◽  
Vol 399-401 ◽  
pp. 1241-1245
Author(s):  
Jin Feng Zhang ◽  
Xiao Ling Yu ◽  
Wei Liu ◽  
Shi Fu Chen
Keyword(s):  
Photocatalytic Activity ◽  
Ball Milling ◽  
Photocatalytic Oxidation ◽  
Diffuse Reflectance Spectroscopy ◽  
Fluorescence Emission ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Activity Effect ◽  
Transmission Electron ◽  
Milling Method

Orthorhombic Nb2WO8 was synthesized by solid state reaction in Nb2O5-WO3 system. Heterojunction photocatalyst Nb2WO8/ZnO was prepared by ball milling. The structural and optical properties of the photocatalyst were characterized by X-ray powder diffraction, transmission electron microscopy, UV–vis diffuse reflectance spectroscopy, and fluorescence emission spectroscopy.The photocatalytic activity was evaluated by photocatalytic oxidation of rhodamine B and reduction of Cr6+. The results showed that the photocatalytic activity of the Nb2WO8/ZnO was higher than that of ZnO. When the amount of doped Nb2WO8 was 10 wt.% and the sample was ball milled for 9 h, the Nb2WO8/ZnO showed the optimal photocatalytic activity. Effect of ball milling time on the photocatalytic activity was also investigated. The mechanisms of the increase in the photocatalytic activity were discussed by the valence band principle.

Photocatalytic activity of Lu 3+ /TiO 2 prepared by ball milling method

2018 ◽  
Vol 36 (8) ◽  
pp. 819-825 ◽  
Author(s):  
Di Wu ◽  
Chen Li ◽  
Qiushi Kong ◽  
Zaifeng Shi ◽  
Dashuai Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ball Milling ◽  
Milling Method
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