Green synthesis of cuprous oxide nanoparticles for environmental remediation and enhanced visible-light photocatalytic activity

Optik ◽  
2020 ◽  
Vol 214 ◽  
pp. 164849 ◽  
Author(s):  
M. Muthukumaran ◽  
G. Dhinagaran ◽  
K. Venkatachalam ◽  
Suresh Sagadevan ◽  
S. Gunasekaran ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Green Synthesis ◽  
Cuprous Oxide ◽  
Environmental Remediation ◽  
Oxide Nanoparticles ◽  
Visible Light Photocatalytic Activity ◽  
Cuprous Oxide Nanoparticles ◽  
Visible Light Photocatalytic

scholarly journals Effects of the preparation method on the structure and the visible-light photocatalytic activity of Ag2CrO4

2014 ◽  
Vol 5 ◽  
pp. 658-666 ◽  
Author(s):  
Difa Xu ◽  
Shaowen Cao ◽  
Jinfeng Zhang ◽  
Bei Cheng ◽  
Jiaguo Yu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Environmental Remediation ◽  
Preparation Method ◽  
Blue Shift ◽  
Preparation Methods ◽  
Visible Light Photocatalytic Activity ◽  
The Comparative Study ◽  
Hydrothermal Methods ◽  
Visible Light Photocatalytic

Silver chromate (Ag2CrO4) photocatalysts are prepared by microemulsion, precipitation, and hydrothermal methods, in order to investigate the effect of preparation methods on the structure and the visible-light photocatalytic activity. It is found that the photocatalytic activity of the prepared Ag2CrO4was highly dependent on the preparation methods. The sample prepared by microemulsion method exhibits the highest photocatalytic efficiency on the degradation of methylene blue (MB) under visible-light irradiation. The enhanced photocatalytic activity could be ascribed to the smaller particle size, higher surface area, relatively stronger light absorption, and blue-shift absorption edge, which result in the adsorption of more MB molecules, a shorter diffusion process of more photogenerated excitons, and a stronger oxidation ability of the photogenerated holes. Considering the universalities of microemulsion, precipitation, and hydrothermal methods, this work may also provide a prototype for the comparative study of semiconductor based photocatalysis for water purification and environmental remediation.

Enhanced visible-light photocatalytic activity of strontium-doped zinc oxide nanoparticles

2015 ◽  
Vol 32 ◽  
pp. 152-159 ◽  
Author(s):  
Ramin Yousefi ◽  
Farid Jamali-Sheini ◽  
Mohsen Cheraghizade ◽  
Sara Khosravi-Gandomani ◽  
Abdolhossein Sáaedi ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

scholarly journals Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation

2020 ◽  
Vol 7 (1) ◽  
pp. 015038 ◽  
Author(s):  
M Muthukumaran ◽  
G Gnanamoorthy ◽  
P Varun Prasath ◽  
M Abinaya ◽  
G Dhinagaran ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Malachite Green ◽  
Cuprous Oxide ◽  
Oxide Nanoparticles ◽  
Light Radiation ◽  
Cuprous Oxide Nanoparticles

scholarly journals A Cost-Effective Solid-State Approach to Synthesize g-C3N4Coated TiO2Nanocomposites with Enhanced Visible Light Photocatalytic Activity

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Min Fu ◽  
Junmin Pi ◽  
Fan Dong ◽  
Qiuyan Duan ◽  
Huan Guo
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Visible Light ◽  
Environmental Remediation ◽  
Cost Effective ◽  
Solid State Method ◽  
Visible Light Photocatalytic Activity ◽  
Enhanced Absorption ◽  
Light Region ◽  
Visible Light Photocatalytic

Novel graphitic carbon nitride (g-C3N4) coated TiO2nanocomposites were prepared by a facile and cost-effective solid-state method by thermal treatment of the mixture of urea and commercial TiO2. Because the C3N4was dispersed and coated on the TiO2nanoparticles, the as-prepared g-C3N4/TiO2nanocomposites showed enhanced absorption and photocatalytic properties in visible light region. The as-prepared g-C3N4coated TiO2nanocomposites under 450°C exhibited efficient visible light photocatalytic activity for degradation of aqueous MB due to the increased visible light absorption and enhanced MB adsorption. The g-C3N4coated TiO2nanocomposites would have wide applications in both environmental remediation and solar energy conversion.

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