Enhanced visible photocatalytic activity of Cu2O nanocrystal/titanate nanobelt heterojunctions by a self-assembly process

RSC Advances ◽  
2014 ◽  
Vol 4 (46) ◽  
pp. 24363-24368 ◽  
Author(s):  
Yueli Liu ◽  
Guojie Yang ◽  
Hao Zhang ◽  
Yuqing Cheng ◽  
Keqiang Chen ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Self Assembly ◽  
Light Irradiation ◽  
Assembly Process ◽  
Visible Photocatalytic Activity

Photodegradation curves of Cu2O/titanate heterojunctions under visible light irradiation.

scholarly journals Investigating Visible-Photocatalytic Activity of MoS2/TiO2 Heterostructure Thin Films at Various MoS2 Deposition Times

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Hang Nguyen Thai Phung ◽  
Van Nguyen Khanh Tran ◽  
Lam Thanh Nguyen ◽  
Loan Kieu Thi Phan ◽  
Phuong Ai Duong ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photoelectron Spectroscopy ◽  
Light Irradiation ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Visible Photocatalytic Activity

MoS2/TiO2 heterostructure thin films were fabricated by sol-gel and chemical bath deposition methods. Crystal structure, surface morphology, chemical states of all elements, and optical property of the obtained thin films were characterized by using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and UV-Vis spectroscopy techniques, respectively. Photocatalytic activity of all thin films was evaluated by measuring decomposition rate of methylene blue solution under visible light irradiation. The results indicate that ultrathin MoS2 film on TiO2-glass substrate improves photocatalytic activity of TiO2 in the visible light due to the efficient absorption of visible photon of MoS2 few layers and the transfer of electrons from MoS2 to TiO2. All MoS2/TiO2 heterostructure thin films exhibit higher visible light photocatalytic activity than that of pure MoS2 and TiO2 counterparts. The best MoS2/TiO2 heterostructure thin film at MoS2 layer deposition time of 45 minutes can decompose about 60% MB solution after 150 minutes under visible light irradiation. The mechanism of the enhancement for visible-photocatalytic activity of MoS2/TiO2 heterostructure thin film was also 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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