Superior photocatalytic activity of Mn-doped CoFe2O4 under visible light irradiation: Exploration of hopping and polaron formation in the spinel structure

2021 ◽  
Vol 270 ◽  
pp. 115222
Author(s):  
M. Srinivas
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Spinel Structure ◽  
Light Irradiation ◽  
Polaron Formation ◽  
Mn Doped

Influence of Mn2+ Ion on the Surface of BiOCl Catalyst for Photocatalytic Degradation of Methylene Green under Visible Light Illumination

2013 ◽  
Vol 764 ◽  
pp. 194-205 ◽  
Author(s):  
Bhawna Sarwan
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Reflectance Spectra ◽  
Light Irradiation ◽  
Light Illumination ◽  
Scanning Electron Micrographs ◽  
Methylene Green ◽  
Mn Doped

In the present investigation, hydrolysis method has been used to synthesize mangnese doped BiOCl. The catalyst was characterized by X-ray diffraction (XRD), scanning electron micrographs (SEM) and diffusive reflectance spectra (DRS) methods. Interesting results have been obtained from diffusive reflectance spectra which depicted that there is a shift in the optical absorption edge towards higher wavelength, which indicates a decrease in the band gap upon Mn doping. The photocatalytic activity of Mn doped catalyst was evaluated from the photodegradation of methylene green (MG) aqueous solution under visible light irradiation. Mn2+ doping effectively improved the photocatalytic activity of BiOCl under visible light irradiation. The possible degradation pathway has been proposed for the photocatalytic degradation by using certain radical scavengers. The photocatalytic reaction mechanism of Mn doped BiOCl catalyst has also been tentatively discussed.

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

Photocatalytic activity of non-stoichiometric ZnFe2O4under visible light irradiation

2014 ◽  
Vol 89 (4) ◽  
pp. 044011 ◽  
Author(s):  
A Šutka ◽  
R Pärna ◽  
J Kleperis ◽  
T Käämbre ◽  
I Pavlovska ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation

Visible-light-responsive catalysis of a zinc-introduced lacunary disilicoicosatungstate for the deoxygenation of pyridine N-oxides

2017 ◽  
Vol 41 (22) ◽  
pp. 13226-13229 ◽  
Author(s):  
Jinu Jeong ◽  
Kosuke Suzuki ◽  
Kazuya Yamaguchi ◽  
Noritaka Mizuno
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Selective Deoxygenation

A mononuclear zinc-introduced lacunary disilicoicosatungstate showed efficient photocatalytic activity in the selective deoxygenation of pyridine N-oxides under visible light irradiation.

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