ChemInform Abstract: Single Step Hydrothermal Synthesis of Beyerite, CaBi2O2(CO3)2for the Fabrication of UV-Visible Light Photocatalyst BiOI/CaBi2O2(CO3)2.

ChemInform ◽  
2016 ◽  
Vol 47 (27) ◽  
Author(s):  
Vidhu Malik ◽  
Meenakshi Pokhriyal ◽  
S. Uma
RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38252-38262 ◽  
Author(s):  
Vidhu Malik ◽  
Meenakshi Pokhriyal ◽  
S. Uma

Uniform rectangular plates of the mineral, beyerite (CaBi2O2(CO3)2) belonging to the “sillen” family have been successfully synthesized and is used in fabricating the composite photocatalyst BiOI/CaBi2O2(CO3)2.


RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32349-32357 ◽  
Author(s):  
Xiang-Biao Zhang ◽  
Lei Zhang ◽  
Jin-Song Hu ◽  
Xin-Hua Huang

A novel sheet-like Zn2+ doped Bi2MoO6 photocatalyst with excellent UV-visible-light induced photocatalytic ability was successfully fabricated through a facile hydrothermal synthesis strategy.


2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Shuisheng Wu ◽  
Nianyuan Tan ◽  
Donghui Lan ◽  
Bing Yi

A series of three-dimensional microflower-like Ag/Bi2WO6 composites were synthesized through a simple and practical photoreduction process with different photoreduction times. The UV-visible diffuse reflectance spectra indicate that the spectrum of Ag/Bi2WO6 is significantly red-shifted compared to pure Bi2WO6 microspheres in the visible light region. The photocatalytic activities of the as-prepared samples were evaluated by the decolorization of rhodamine B under visible light irradiation. The photocatalytic reaction rate constants of the Ag/Bi2WO6 with a photoreduction time of 20 min was 3.60 times bigger than those of pure Bi2WO6. The enhanced photocatalytic activity could be attributed to the synergistic effect of increased light absorption range and the effective separation of photogenerated carriers caused by Ag nanoparticles.


Author(s):  
Joyjit Kundu ◽  
Diptangshu Datta Mal ◽  
Debabrata Pradhan

Appropriate band gap engineering of a semiconductor material allows it to be a visible light photocatalyst with improved performance. Herein, we report on controlling the band gap of CdxZn1-xS by...


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Cheng-Yen Tsai ◽  
Tien-Ho Kuo ◽  
Hsing-Cheng Hsi

High-quality Al-doped TiO2visible-light photocatalyst was prepared via a single-step direct combination of vaporized Ti, Al, and O2using a 6 kW thermal plasma system. Results showed that the formed Al-doped TiO2nanoparticles were a mixture of anatase and rutile phase and had a size between 10 and 105 nm. The absorption spectra of the nanoparticles shifted towards the visible light regions, depending on the Al2O3addition. Ti4+and Ti3+coexisted in the synthesized Al-doped TiO2; the Ti3+concentration, however, increased with increasing Al2O3addition due to Al/Ti substitution that caused the occurrence of oxygen vacancy. Hg0breakthrough tests revealed that the nanoparticles had an appreciable Hg0removal under visible-light irradiation. Nevertheless, moisture reduced Hg removal by the nanoparticles, especially when visible-light irradiation was applied, suggesting that the competitive adsorption between H2O and Hg species on the active sites of TiO2surface occurred.


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