silver halide/silver iodide@silver composite with excellent visible light photocatalytic activity for methyl orange degradation

2013 ◽  
Vol 405 ◽  
pp. 17-21 ◽  
Author(s):  
Cuiyun Zeng ◽  
Baozhu Tian ◽  
Jinlong Zhang
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.


2016 ◽  
Vol 45 (35) ◽  
pp. 13944-13950 ◽  
Author(s):  
Gang Yan ◽  
Hongfei Shi ◽  
Huaqiao Tan ◽  
Wanbin Zhu ◽  
Yonghui Wang ◽  
...  

A new 2D sheet composite Bi2OxS3−x/Nb6O17 has been prepared, which shows good visible light photocatalytic performance for the degradation of methyl orange.


RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64446-64449 ◽  
Author(s):  
Xiaosong Zhou ◽  
Bei Jin ◽  
Jin Luo ◽  
Xuyao Xu ◽  
Lingling Zhang ◽  
...  

Dramatic visible light photocatalytic activity was obtained for the degradation of methyl orange using TiO2 photocatalysts modified with polydopamine (PDA) nanospheres.


2016 ◽  
Vol 37 (2) ◽  
pp. 165-173
Author(s):  
苗慧 MIAO Hui ◽  
夏娟 XIA Juan ◽  
金凤 JIN Feng ◽  
孙林 SUN Lin ◽  
崔玉民 CUI Yu-min ◽  
...  

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