Synthesis, Characterization, and Photocatalytic Activity of Quaternary Selenide Composite Using Natural Sunlight

Optik ◽  
2021 ◽  
pp. 168460
Author(s):  
Nida ◽  
Nazia Yasmin ◽  
Ambreen Kalsoom ◽  
Hasnain Qayyum ◽  
Mushtaq Ahmad ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Natural Sunlight

scholarly journals Solar-driven electrochemically assisted semiconductor-catalyzed iodide ion oxidation. Enhanced efficiency by oxide mixtures

2009 ◽  
Vol 7 (3) ◽  
pp. 519-523 ◽  
Author(s):  
Chockalingam Karunakaran ◽  
Premkumar Anilkumar
Keyword(s):  
Photocatalytic Activity ◽  
Dissolved Oxygen ◽  
Charge Separation ◽  
Saturated Solution ◽  
Natural Sunlight ◽  
Iodide Ion

AbstractOxidation of iodide ion from an air-saturated solution under natural sunlight (900±50 W m−2) on the surfaces of TiO2, ZnO, Fe2O3, MoO3 and CeO2 enhances by 6 to 12-fold on application of a cathodic bias of −0.2 to −0.3 V (vs NHE) to the semiconductors; light, the semiconductor and dissolved oxygen are essential for iodine generation. The semiconductors under an anodic bias of +0.2 to +0.3 V (vs NHE) fail to oxidize iodide ion from air-saturated solution under sunlight. Under cathodic bias, semiconductor mixtures like TiO2-ZnO, TiO2-Fe2O3 and ZnO-Fe2O3 show enhanced photocatalytic activity, indicating improved charge separation in oxide mixtures. The mechanism of photocatalysis under cathodic bias is discussed.

3D Hierarchical heterostructures of Bi2W1−xMoxO6 with enhanced oxygen evolution reaction from water under natural sunlight

2018 ◽  
Vol 42 (21) ◽  
pp. 17597-17605 ◽  
Author(s):  
Aniruddha K. Kulkarni ◽  
Rajendra P. Panmand ◽  
Yogesh A. Sethi ◽  
Sunil R. Kadam ◽  
Deepak R. Patil ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Solvothermal Method ◽  
One Pot ◽  
Natural Sunlight ◽  
Self Assembled

Self-assembled 3D hierarchical Bi2W1−xMoxO6 heterostructures with varying x (x = 0, 0.2, 0.4, 0.6, 0.8 or 1.0) with different morphologies were synthesised via a facile one-pot solvothermal method and their photocatalytic activity towards the oxygen evolution reaction (OER) from water under natural sunlight was tested.

Green synthesis of porous Au–Nx-TiO2 nanospheres for solar light induced photocatalytic degradation of diazo and triazo dyes and their eco-toxic effects

2018 ◽  
Vol 42 (23) ◽  
pp. 18717-18728 ◽  
Author(s):  
N. Pugazhenthiran ◽  
R. V. Mangalaraja ◽  
P. Sathishkumar ◽  
S. Murugesan ◽  
T. Muneeswaran ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Green Synthesis ◽  
Photocatalytic Degradation ◽  
Azo Dyes ◽  
Toxic Effects ◽  
Solar Light ◽  
Natural Sunlight

The photocatalytic activity of Au–Nx-TiO2 nanospheres evaluated under natural sunlight; 91% mineralization of azo dyes is achieved without toxic intermediates.

The suitability of Ce3+-modified ZnO photocatalyst for the mineralization of monochlorophenol isomers in sunlight exposure

RSC Advances ◽  
2014 ◽  
Vol 4 (90) ◽  
pp. 49347-49359 ◽  
Author(s):  
Mohammad Aslam ◽  
Iqbal M. I. Ismail ◽  
Sivaraman Chandrasekaran ◽  
Talal Almeelbi ◽  
Abdul Hameed
Keyword(s):  
Photocatalytic Activity ◽  
Sunlight Exposure ◽  
Natural Sunlight

The photocatalytic activity of Ce3+-modified hexagonal ZnO for the degradation/mineralization of monochlorophenol isomers (2-chlorophenol, 3-chlorophenol and 4-chlorophenol), in natural sunlight exposure, is reported.

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