Fabrication of TlSnI3/C3N4 nanocomposites for enhanced photodegradation of toxic contaminants below visible light and investigation of kinetic and mechanism of photocatalytic reaction

2022 ◽  
pp. 118443
Author(s):  
Fatemeh Yousefzadeh ◽  
Qahtan A. Yousif ◽  
Mojgan Ghanbari ◽  
Masoud Salavati-Niasari
2011 ◽  
Vol 12 (5) ◽  
pp. 341-344 ◽  
Author(s):  
Naoya Murakami ◽  
Takuma Matsuo ◽  
Toshiki Tsubota ◽  
Teruhisa Ohno

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1237
Author(s):  
Byung-Geon Park ◽  
Chang-Ho Lee ◽  
Kyong-Hwan Chung

N- and Ni-coated TiO2 (NNT) were prepared by a facile sol-gel method as a photosensitive photocatalyst to visible light. NNT sol was used to coat the surface of an LED lamp cap and body made of polycarbonate with a thin NNT film. The coated thin film was dried in an oven at 130 °C. This NNT thin film had an amorphous TiO2 structure and absorbed 600 nm of visible light. The decomposition properties of formaldehyde on the NNT photocatalyst after irradiation with visible light were investigated. The LED lamp was irradiated with visible light at 500–620 nm and 6 W. Formaldehyde was decomposed by a photocatalytic reaction by visible light irradiation on the NNT-coated polycarbonate surface. Escherichia coli (E. coli), Staphylococcus aureus, and Pseudomonas aeruginosa were also used to examine the sterilizing properties of pathogenic bacteria using an LED lamp kit. The pathogenic bacteria on the NNT-coated polycarbonate surface were sterilized by irradiation with visible light.


RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7469-7475 ◽  
Author(s):  
Ryeri Lee ◽  
Yogeenth Kumaresan ◽  
Sei Young Yoon ◽  
Soong Ho Um ◽  
Il Keun Kwon ◽  
...  

In this study, we designed core/shell nanostructures (CSNs) of silicon dioxide (SiO2)/titanium dioxide (TiO2), which were decorated with gold (Au) nanoparticles (NPs), to activate the visible light-driven photocatalytic reaction.


2018 ◽  
Vol 6 (39) ◽  
pp. 18979-18986 ◽  
Author(s):  
Fan Gao ◽  
Yan Zhao ◽  
Lulu Zhang ◽  
Bo Wang ◽  
Yaozhu Wang ◽  
...  

The proposed mechanism of photocatalytic reaction using a MoC-QDs/C/ZIS composite under visible light irradiation.


2020 ◽  
Vol 10 (16) ◽  
pp. 5438-5442 ◽  
Author(s):  
Guoliang Gao ◽  
Xingxing Niu ◽  
Beibei Xu ◽  
Xue Lu Wang ◽  
Ye-Feng Yao

Through a combination of operando NMR and GC, the effects of Pd nanoparticles with different crystal planes and sizes on the reduction and oxidation reaction parts of the photocatalytic reaction were studied in detail.


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.


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