Type-II α-In2S3/In2O3 nanowire heterostructures: evidence of enhanced photo-induced charge separation efficiency

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12561-12570 ◽  
Author(s):  
Li-Chia Tien ◽  
Jhih-Lin Shih

Type-II α-In2S3/In2O3 nanowire heterostructures exhibit significant photo-induced carrier life time improvement and visible-light-driven photocatalytic activity.

2012 ◽  
Vol 66 (5) ◽  
Author(s):  
Petr Kluson ◽  
Stepan Kment ◽  
Magdalena Morozova ◽  
Pavel Dytrych ◽  
Stanislav Hejda ◽  
...  

AbstractChemistry and physics of thin semiconducting layers of various types are subjects of intense research. Especially when nanotechnology methods such as self-assembly are involved, amazing structural and/or functional properties may appear. Also modern physical methods using variously organized plasma arrangements are able to produce uniform structures with distinctive functionality. In this review, based virtually on our own work, discussions on the preparation, structure, morphology, and function of titanium(IV) oxide nanoscopic thin films are presented. It was shown that structurally and functionally similar titanium(IV) oxide films can be prepared via completely different preparation techniques. Function tests were arranged as “primary”, covering the assessment of the light induced charge separation efficiency, and “secondary”, based on photocatalytic surface oxidations.


2017 ◽  
Vol 7 (14) ◽  
pp. 3017-3026 ◽  
Author(s):  
Muhammad Asim Khan ◽  
Mingzhu Xia ◽  
Sadaf Mutahir ◽  
Tahir Muhmood ◽  
Wu Lei ◽  
...  

For the first time we have successfully constructed semi conductive copper–biphenylamines framework hybrid photocatalysts to degrade organic pollutants.


2020 ◽  
Vol 44 (4) ◽  
pp. 1579-1587
Author(s):  
Yong Liang ◽  
Yuexing Chen ◽  
Li Lin ◽  
Maojun Zhao ◽  
Li Zhang ◽  
...  

The visible-light-driven Z-scheme AgVO3/AgI graphene microtube is prepared by in situ ion exchange and hydrothermal methods for enhancing charge separation efficiency and photocatalytic oxidation ability.


2017 ◽  
Vol 28 (39) ◽  
pp. 394003 ◽  
Author(s):  
Tao Fang ◽  
Yongsheng Guo ◽  
Songhua Cai ◽  
Ningsi Zhang ◽  
Yingfei Hu ◽  
...  

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 2077-2088 ◽  
Author(s):  
Daixun Jiang ◽  
Xun Sun ◽  
Xilu Wu ◽  
Shuai Zhang ◽  
Xiaofei Qu ◽  
...  

AbstractThe strategy to improve the photocatalytic removal efficiencies towards organic pollutants is still a challenge for the novel Sillen–Aurivillius perovskite type Bi4NbO8Cl. Herein, we report carbon-supported TiO2/Bi4NbO8Cl (C-TiO2/Bi4NbO8Cl) heterostructures with enhanced charge separation efficiency, which were fabricated via molten-salt flux process. The carbon-supported TiO2 particles were derived from MXene Ti3C2 precursors, and attached on plate-like Bi4NbO8Cl, acting as electron-traps to achieve supressed recombination of photo-induced charges. The improved charge separation confers C-TiO2/Bi4NbO8Cl heterostructures superior photocatalytic performance with 53% higher than pristine Bi4NbO8Cl, towards rhodamine B removal with the help of photo-induced holes. Moreover, the C-TiO2/Bi4NbO8Cl heterostructures can be expanded to deal with other water contaminants, such as methyl orange, ciprofloxacin and 2,4-dichlorophenol with 44, 25 and 13% promotion, respectively, and thus the study offers a series of efficient photocatalysts for water purification.


RSC Advances ◽  
2017 ◽  
Vol 7 (44) ◽  
pp. 27397-27404 ◽  
Author(s):  
Shiyi Cai ◽  
Shan Yu ◽  
Wenchao Wan ◽  
Wen Wen ◽  
Ying Zhou

ATiO3 were synthesized from TiO2 nanosheets dominated with {001} facets, PbTiO3 possesses the highest activity as a result of larger light response and higher charge separation efficiency.


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