scholarly journals Electron transfer in ZnO–Fe2O3 aqueous slurry systems and its effects on visible light photocatalytic activity

2017 ◽  
Vol 7 (18) ◽  
pp. 4041-4047 ◽  
Author(s):  
H. Lachheb ◽  
F. Ajala ◽  
A. Hamrouni ◽  
A. Houas ◽  
F. Parrino ◽  
...  

The strong interactions between ZnO and Fe2O3 modify the nanocomposite's electronic structure producing efficient charge separation and superior photoactivity.

2019 ◽  
Vol 12 (01) ◽  
pp. 1850110 ◽  
Author(s):  
Mengjun Liang ◽  
Lu Chen ◽  
Zhiyuan Yang ◽  
Zhen Zeng ◽  
Shuijin Yang

ZnO/Bi4V2O[Formula: see text] nanocomposites were prepared via a facile hydrothermal method by loading different amounts of ZnO onto the surface of Bi4V2O[Formula: see text]. The resulting ZnO/Bi4V2O[Formula: see text] composites showed excellent photocatalytic activity than that of pure ZnO under visible light irradiation. When the ratio of ZnO to Bi4V2O[Formula: see text] was 1:1 (ZB2), the photocatalytic activity was best, which could degrade RhB almost completely within 30[Formula: see text]min. The enhanced photocatalytic activity of ZnO/Bi4V2O[Formula: see text] composites could be mainly ascribed to the efficient charge separation and the increased specific surface area. Based on the experimental and bandgap calculations, a possible photocatalytic mechanism was proposed.


2014 ◽  
Vol 16 (26) ◽  
pp. 13409-13417 ◽  
Author(s):  
Chao Liu ◽  
Liang Wu ◽  
Jing Chen ◽  
Ji-yuan Liang ◽  
Chang-shun Li ◽  
...  

N-doping and intercalation resulted in a PANI–N-HTiNbO5lamellar nanocomposite, which showed a dramatic enhanced visible-light photocatalytic activity and stability for the degradation of methylene blue (MB), due to the high efficiency of charge separation.


2015 ◽  
Vol 1 (2) ◽  
pp. 177-187 ◽  
Author(s):  
M. L. ArunaKumari ◽  
L. Gomathi Devi

The chemisorbed Hemin molecule acts as a sensitizer under visible light and transfers photogenerated electrons to the TiO2 conduction band through OC–O–Ti bonds which can act as electron transfer channels. The oxidized Hemin molecule is regenerated by triethanolamine a sacrificial electron donor.


RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23174-23180 ◽  
Author(s):  
Yingzhi Chen ◽  
Mengbin Yue ◽  
Zheng-Hong Huang ◽  
Lu-Ning Wang ◽  
Feiyu Kang

Monolithic organic/inorganic ternary nanohybrids were facilely prepared toward electron transfer cascade and demonstrated enhanced visible-light photocatalytic activity.


CrystEngComm ◽  
2020 ◽  
Vol 22 (39) ◽  
pp. 6485-6494 ◽  
Author(s):  
Yi Ren ◽  
Wenqi Zhan ◽  
Lulu Tang ◽  
Hui Zheng ◽  
Huimin Liu ◽  
...  

A ternary H2SrTa2O7/g-C3N4/Ag3PO4 heterojunction was fabricated for the first time and displayed excellent visible light photocatalytic activity.


Sign in / Sign up

Export Citation Format

Share Document