Highly exposed surface area of {001} facets dominated BiOBr nanosheets with enhanced visible light photocatalytic activity

2016 ◽  
Vol 18 (8) ◽  
pp. 6113-6121 ◽  
Author(s):  
Fang Duan ◽  
Xiaofeng Wang ◽  
Tingting Tan ◽  
Mingqing Chen
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Exposed Surface ◽  
Visible Light Photocatalytic Activity ◽  
Surface Areas ◽  
Exposed Surface Area ◽  
Visible Light Photocatalytic

The enhanced photocatalytic activity of BiOBr nanosheets depends on the large exposed surface areas of {001} facets (S{001}).

Effect of Co-Doped La3+/Halogen on Visible Light Photocatalytic Activity of TiO2

2011 ◽  
Vol 239-242 ◽  
pp. 1923-1928
Author(s):  
Qian Lin Chen ◽  
Yuan Wang ◽  
Chun Yan Zhong ◽  
Yu Guo
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Surface Area ◽  
Visible Light Photocatalytic Activity ◽  
Co Doping ◽  
Hydrolysis Method ◽  
Degradation Ratio ◽  
Co Doped ◽  
Visible Light Photocatalytic

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.

Fabrication of Fe2TiO5/TiO2 nanoheterostructures with enhanced visible-light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45343-45348 ◽  
Author(s):  
Zirui Lou ◽  
Yaguang Li ◽  
Hui Song ◽  
Zhizhen Ye ◽  
Liping Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Uniform Distribution ◽  
Surface Area ◽  
Shell Thickness ◽  
Hollow Nanospheres ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

In this work, we have fabricated Fe2TiO5/TiO2 heterostructures hollow nanospheres with 10 nm scale shell thickness, 220 m2 g−1 surface area and uniform distribution. Their visible photocatalytic activities for degrading pollutant are greatly enhanced.

Eco-friendly one-pot synthesis of well-adorned mesoporous g-C3N4 with efficiently enhanced visible light photocatalytic activity

2017 ◽  
Vol 7 (8) ◽  
pp. 1726-1734 ◽  
Author(s):  
Waheed Iqbal ◽  
Chunyang Dong ◽  
Mingyang Xing ◽  
Xianjun Tan ◽  
Jinlong Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Mass Ratio ◽  
One Pot ◽  
Visible Light Photocatalytic Activity ◽  
One Pot Synthesis ◽  
Visible Light Photocatalytic

We report a facile and eco-friendly one-pot synthesis of well-adorned mesoporous g-C3N4 material through a bubble templating strategy and involving controlling the surface area from 17 to 195 m2 g−1 by simply adjusting the mass ratio of melamine/NH4Cl.

A highly efficient g-C3N4/SiO2 heterojunction: the role of SiO2 in the enhancement of visible light photocatalytic activity

2016 ◽  
Vol 18 (46) ◽  
pp. 31410-31418 ◽  
Author(s):  
Qiang Hao ◽  
Xiuxiu Niu ◽  
Changshun Nie ◽  
Simeng Hao ◽  
Wei Zou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Intrinsic Property ◽  
Hard Template ◽  
Visible Light Photocatalytic Activity ◽  
Highly Efficient ◽  
Visible Light Photocatalytic

SiO2, an insulator, hardly has any photocatalytic acitivity due to its intrinsic property, and it is generally used as a hard template to increase the surface area of catalysts.

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