Study on photogenerated charge transfer properties and enhanced visible-light photocatalytic activity of p-type Bi2O3/n-type ZnO heterojunctions

2015 ◽  
Vol 39 (4) ◽  
pp. 2917-2924 ◽  
Author(s):  
Shasha Yi ◽  
Xinzheng Yue ◽  
Dandan Xu ◽  
Zhipeng Liu ◽  
Fei Zhao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Visible Light ◽  
High Efficiency ◽  
Visible Light Photocatalytic Activity ◽  
Excellent Photocatalytic Activity ◽  
P Type ◽  
Transfer Properties ◽  
Visible Light Photocatalytic

The high-efficiency separation of photo-generated charges provides a catalyst with excellent photocatalytic activity.

Facile synthesis of Ag/ZnO micro-flowers and their improved ultraviolet and visible light photocatalytic activity

2016 ◽  
Vol 40 (2) ◽  
pp. 1587-1594 ◽  
Author(s):  
Yimai Liang ◽  
Na Guo ◽  
Linlin Li ◽  
Ruiqing Li ◽  
Guijuan Ji ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Contaminated Water ◽  
Facile Synthesis ◽  
Promising Candidate ◽  
Visible Light Photocatalytic Activity ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Photocatalytic

A series of flower-like Ag/ZnO composites was prepared with varying Ag content. The prepared photocatalyst displays excellent photocatalytic activity for RhB under UV and visible light. Ag/ZnO is a promising candidate material for the treatment of contaminated water.

The nanocomposite of polyaniline and nitrogen-doped layered HTiNbO5with excellent visible-light photocatalytic performance

2014 ◽  
Vol 16 (26) ◽  
pp. 13409-13417 ◽  
Author(s):  
Chao Liu ◽  
Liang Wu ◽  
Jing Chen ◽  
Ji-yuan Liang ◽  
Chang-shun Li ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Nitrogen Doped ◽  
Visible Light Photocatalytic Activity ◽  
N Doping ◽  
Visible Light Photocatalytic

N-doping and intercalation resulted in a PANI–N-HTiNbO5lamellar nanocomposite, which showed a dramatic enhanced visible-light photocatalytic activity and stability for the degradation of methylene blue (MB), due to the high efficiency of charge separation.

High-Efficiency Preparation of N-Doped Titania with High Visible Light Photocatalytic Activity Using Composite N Precursor

2015 ◽  
Vol 645-646 ◽  
pp. 368-374
Author(s):  
Yu Long Hu ◽  
Xiao Dong Zhang ◽  
Hong Fang Liu ◽  
Xing Peng Guo
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
High Efficiency ◽  
Thermo Gravimetric Analysis ◽  
Ammonium Hydroxide ◽  
Gravimetric Analysis ◽  
X Ray ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

N-doped TiO2 nanoparticle powders were prepared efficiently by the sol-gel method using triethylamine and ammonium hydroxide as composite N precursor. The as-prepared N-doped TiO2 precursor powders were calcined at 300°C in air for 3 h and subsequently annealed at 300°C in air for 2.5 h. The samples were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, thermo-gravimetric analysis, and X-ray photoelectron spectroscopy. The visible light photocatalytic activities of as-prepared samples were evaluated by photodecomposition of methyl orange (MO). The results show that the as-prepared samples have high visible light photocatalytic activities. Triethylamine produces the N-species doped in TiO2 lattice responsible for the high visible light photocatalytic activity. Ammonium hydroxide makes the gel of the TiO2 nanoparticles nitrided by triethylamine gelate further and facilitates significantly the centrifugation of the gel. An annealing treatment can eliminate effectively the outer N species caused by ammonium hydroxide and the surface organic residues, improve effectively crystallinity, and retain the N species caused by triethylamine.

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