Enhanced photocatalytic performance of Ag 2 O/BiOF composite photocatalysts originating from efficient interfacial charge separation

2017 ◽  
Vol 416 ◽  
pp. 666-671 ◽  
Author(s):  
Mei Yang ◽  
Qi Yang ◽  
Junbo Zhong ◽  
Shengtian Huang ◽  
Jianzhang Li ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Composite Photocatalysts ◽  
Interfacial Charge

Dual functions of CO2 molecular activation and 4f levels as electron transport bridge in erbium single atom composite photocatalysts therefore enhancing visible-light photoactivities

2021 ◽  
Author(s):  
Qiuyu Chen ◽  
Guoyang Gao ◽  
Yanzhou Zhang ◽  
Yini Li ◽  
Hongyang Zhu ◽  
...  
Keyword(s):  
Charge Separation ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Co2 Activation ◽  
Composite Photocatalysts ◽  
Co2 Reduction Reaction ◽  
Interfacial Charge ◽  
Dual Functions ◽  
Molecular Activation

Only when the interfacial charge separation is enhanced and the CO2 activation is improved, can the heterojunction nanocomposite photocatalyst be brought into full play for CO2 reduction reaction (CO2RR). Here,...

Graphitic Carbon Nitride Isotype Heterostructures with Enhanced Visible Photocatalytic Properties

NANO ◽  
2017 ◽  
Vol 12 (04) ◽  
pp. 1750042 ◽  
Author(s):  
Lujia Cong ◽  
Hongchen Mu ◽  
Shan Zhang ◽  
Mingyi Zhang ◽  
Zhenyu Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Charge Separation ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Reaction ◽  
Transient Photocurrent ◽  
Highly Active ◽  
Composite Photocatalysts ◽  
Interfacial Charge

In this work, highly active graphitic carbon nitride composite photocatalysts with an isotype heterojunction semiconductor structure have been prepared through the molecular composite precursors consisting of urea and melamine. These photocatalysts were characterized by XRD, SEM, TEM, UV-Vis, BET and transient photocurrent responses. The photodegradation of dyes in aqueous solution under visible-light irradiation has been investigated over carbon nitride photocatalysts consisting of different urea/melamine mass ratios. Further studies by photocurrent indicate that the photosynergistic effect of isotype heterojunction can remarkably enhance the photoinduced interfacial charge transfer, thereby increasing the charge separation during the photocatalytic reaction.

Synthesis of branched WO3@W18O49 homojunction with enhanced interfacial charge separation and full-spectrum photocatalytic performance

2020 ◽  
Vol 389 ◽  
pp. 124474 ◽  
Author(s):  
Chengyang Feng ◽  
Lin Tang ◽  
Yaocheng Deng ◽  
Jiajia Wang ◽  
Wangwang Tang ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Full Spectrum ◽  
Interfacial Charge

Z-scheme photocatalytic hydrogen production over WO3/g-C3N4 composite photocatalysts

RSC Advances ◽  
2014 ◽  
Vol 4 (41) ◽  
pp. 21405-21409 ◽  
Author(s):  
Hideyuki Katsumata ◽  
Yusuke Tachi ◽  
Tohru Suzuki ◽  
Satoshi Kaneco
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Composite Photocatalysts ◽  
Efficient Charge

WO3/g-C3N4 catalysts exhibit excellent photocatalytic performance for H2 production from aqueous solution through the Z-scheme mechanism, which results in the efficient charge separation.

3D/2D Bi2S3/SnS2 Heterostructures: Superior Charge Separation and Enhanced Solar Light Driven Photocatalytic Performance

CrystEngComm ◽  
2021 ◽  
Author(s):  
Sumana Paul ◽  
Dulal Barman ◽  
Chandra Chowdhury ◽  
Pravat Kumar Giri ◽  
Subodh Kumar De
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Solar Light ◽  
Toxic Ions

In promoting the application of green and sustainable solution towards the photodegradation of organic dyes and toxic ions, it is urgent to fabricate semiconductor based effective and stable photocatalysts. Constructing...

scholarly journals MXene-Ti3C2 assisted one-step synthesis of carbon-supported TiO2/Bi4NbO8Cl heterostructures for enhanced photocatalytic water decontamination

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 2077-2088 ◽  
Author(s):  
Daixun Jiang ◽  
Xun Sun ◽  
Xilu Wu ◽  
Shuai Zhang ◽  
Xiaofei Qu ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Salt Flux ◽  
The Novel ◽  
Water Contaminants ◽  
Photocatalytic Removal ◽  
One Step ◽  
Charge Separation Efficiency ◽  
Perovskite Type

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.

Sign in / Sign up

Export Citation Format

Share Document