Synthesis, characterization and visible light photocatalytic activity of Cr3+, Ce3+and N co-doped TiO2for the degradation of humic acid

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32323-32332 ◽  
Author(s):  
S. G. Rashid ◽  
M. A. Gondal ◽  
A. Hameed ◽  
M. Aslam ◽  
M. A. Dastageer ◽  
...  

The synthesis, characterization and photocatalytic activity of Cr3+and Ce3+co-doped TiON (N-doped TiO2) for the degradation of humic acid with exposure to visible light is reported.

2011 ◽  
Vol 239-242 ◽  
pp. 1923-1928
Author(s):  
Qian Lin Chen ◽  
Yuan Wang ◽  
Chun Yan Zhong ◽  
Yu Guo

La3+/halogen (F-, Cl-and Br-) co-doped TiO2was synthesized by alkoxide hydrolysis method. The prepared La3+/halogen TiO2photocatalysts with anatase phases and rutile phases were characterized with XRD, EDS, TEM and surface area analytic technology. Methyl orange was used as model pollutants to evaluate its visible light photocatalytic activity. The results showed that the co-doping of La3+and halogen ions improved the surface area of TiO2. Compared with 450°C and 650°C, La3+/Cl-and La3+/Br-co-doped TiO2calcined at 550°C exhibited much higher photocatalytic activity. The optimal doping ratio of La3+/F-, La3+/Cl-and La3+/Br-was 0.4, 0.6, and 0.5 ((wt%)/(wt%)), respectively. Moreover, the degradation ratio of methyl orange on La3+/halogen co-doped TiO2with the optimal ratio were all higher than the maximum degradation ratio on La3+, F-, Cl-and Br-doped TiO2prepared by the same method.


2017 ◽  
Vol 96 ◽  
pp. 10-17 ◽  
Author(s):  
Honghong Liu ◽  
Hong Gong ◽  
Mingming Zou ◽  
Heng Jiang ◽  
Rasaki Sefiu Abolaji ◽  
...  

2011 ◽  
Vol 59 (2) ◽  
pp. 387-391 ◽  
Author(s):  
Yihe Zhang ◽  
Fengzhu Lv ◽  
Tao Wu ◽  
Li Yu ◽  
Rui Zhang ◽  
...  

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