BiVO4/BiO0.67F1.66 heterojunction enhanced charge carrier separation to boost photocatalytic activity

2019 ◽  
Vol 21 (3) ◽  
Author(s):  
Xinyan Feng ◽  
Xiaojun Zhao ◽  
Limiao Chen
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Carrier Separation

An Investigation into the Effect of Ferroelectricity of BaTiO3 on the Photocatalytic Activity in Dye Decolourisation

2014 ◽  
Vol 93 ◽  
pp. 190-195 ◽  
Author(s):  
Yong Fei Cui ◽  
Joe Briscoe ◽  
Steve Dunn
Keyword(s):  
Heat Treatment ◽  
Photocatalytic Activity ◽  
Catalytic Activity ◽  
Charge Carrier ◽  
Strong Relationship ◽  
Internal Space ◽  
Photocatalytic Efficiency ◽  
Dye Decolourisation ◽  
Carrier Separation ◽  
Reduced Surface

We use BaTiO3 as a model photocatalyst to investigate the effect of ferroelectricity on catalytic activity against photocatalytic decolourisation of Acid Black 1. We find that there is a strong relationship between the degree of ferroelectric nature of the BaTiO3 and the catalytic activity. When Ag is photodeposited onto BaTiO3 to produce a modified BaTiO3, the higher tetragonal material content shows the highest photocatalytic efficiency even though there is a reduced surface area due to heat treatment. This change in the performance of the catalyst is associated with improvements in charge carrier separation due to the internal space charge layer formed in a ferroelectric due to the internal dipole.

Layered BiOCl/H+TiNbO5− heterojunctions for boosting visible-light-driven photocatalytic RhB degradation

2021 ◽  
Author(s):  
Chao Liu ◽  
Xin Gao ◽  
Caijun Zhangai ◽  
Ting Cheng ◽  
Yan Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Visible Light ◽  
Visible Light Driven ◽  
Carrier Separation

The construction of layered heterojunction photocatalyst could profoundly promote the charge carrier separation and thus boost the photocatalytic activity. In this work, a two-step exfoliation-reassembly process was firstly employed to...

Surfactant free fabrication and improved charge carrier separation induced enhanced photocatalytic activity of {001} facet exposed unique octagonal BiOCl nanosheets

2016 ◽  
Vol 18 (29) ◽  
pp. 19595-19604 ◽  
Author(s):  
Zeeshan Haider ◽  
Jin You Zheng ◽  
Young Soo Kang
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Carrier Dynamics ◽  
Iodine Doping ◽  
Carrier Separation

In situ iodine doping induced improved carrier dynamics and enhanced photocatalytic activity of unique octagonal shaped {001} BiOCl nanosheets.

Au nanoparticle homogeneously decorated C@TiO2 for enhanced visible-light-driven photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 103790-103796 ◽  
Author(s):  
Yan-Zhen Zheng ◽  
Yan-Yan Xu ◽  
Hua-Bin Fang ◽  
Yuan Wang ◽  
Xia Tao
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Visible Light ◽  
Light Response ◽  
Au Nanoparticle ◽  
Transport Efficiency ◽  
Response Characteristics ◽  
Visible Light Response ◽  
Visible Light Driven ◽  
Carrier Separation

A Au–C@TiO2 photocatalyst shows excellent visible-light response characteristics and promotes charge carrier separation and transport efficiency.

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