d10 or d0? Theoretical and experimental comparison between rutile GeO2 and TiO2 for photocatalytic water splitting

2021 ◽  
Author(s):  
Rong Wang ◽  
Qiaoqi Li ◽  
Weihua Li ◽  
Pengfei Jiang ◽  
Rihong Cong ◽  
...  
Keyword(s):  
Water Splitting ◽  
Octahedral Coordination ◽  
Experimental Comparison ◽  
Charge Mobility ◽  
High Charge ◽  
Photocatalytic Water Splitting ◽  
Comprehensive Comparison

A comprehensive comparison between rutile-TiO2 and GeO2 proves that the d10 metal in octahedral coordination leads to a high charge mobility.

Designing transition metal and nitrogen-codoped SrTiO3(001) perovskite surfaces as efficient photocatalysts for water splitting

2017 ◽  
Vol 1 (9) ◽  
pp. 1968-1980 ◽  
Author(s):  
Yang Yang ◽  
Weijie Zheng ◽  
Daojian Cheng ◽  
Dapeng Cao
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Charge Mobility ◽  
High Charge

Development of an efficient photocatalyst with both strong visible light absorption and high charge mobility is highly desirable but still remains a great challenge.

A review on g-C3N4 incorporated with organics for enhanced photocatalytic water splitting

2021 ◽  
Author(s):  
Jinnan Liang ◽  
Xiaohong Yang ◽  
Yan Wang ◽  
Peng He ◽  
Haitao Fu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
Low Cost ◽  
High Charge ◽  
Photocatalytic Water Splitting ◽  
Separation Rate

The key challenge of the photocatalytic technology is to discover a low-cost photocatalyst with the functions of efficient sunlight utilization as well as high charge separation rate applied in the...

Efficient and stable charge transfer channels for photocatalytic water splitting activity of CdS without sacrificial agents

2020 ◽  
Vol 8 (40) ◽  
pp. 20963-20969 ◽  
Author(s):  
Wei Chen ◽  
Guo-Bo Huang ◽  
Hao Song ◽  
Jian Zhang
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Transfer Channel ◽  
Efficient Charge ◽  
Transfer Channels

An efficient charge transfer channel for improving the photocatalytic water splitting activity and durability of CdS without sacrificial agents.

scholarly journals Recent Achievements in Development of TiO2-Based Composite Photocatalytic Materials for Solar Driven Water Purification and Water Splitting

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1338 ◽  
Author(s):  
Klara Perović ◽  
Francis M. dela Rosa ◽  
Marin Kovačić ◽  
Hrvoje Kušić ◽  
Urška Lavrenčič Štangar ◽  
...  
Keyword(s):  
Water Treatment ◽  
Transition Metal ◽  
Photocatalytic Degradation ◽  
Water Splitting ◽  
Water Purification ◽  
Degradation Mechanism ◽  
Living Environment ◽  
Solar Irradiation ◽  
Metal Chalcogenides ◽  
Photocatalytic Water Splitting

Clean water and the increased use of renewable energy are considered to be two of the main goals in the effort to achieve a sustainable living environment. The fulfillment of these goals may include the use of solar-driven photocatalytic processes that are found to be quite effective in water purification, as well as hydrogen generation. H2 production by water splitting and photocatalytic degradation of organic pollutants in water both rely on the formation of electron/hole (e−/h+) pairs at a semiconducting material upon its excitation by light with sufficient photon energy. Most of the photocatalytic studies involve the use of TiO2 and well-suited model compounds, either as sacrificial agents or pollutants. However, the wider application of this technology requires the harvesting of a broader spectrum of solar irradiation and the suppression of the recombination of photogenerated charge carriers. These limitations can be overcome by the use of different strategies, among which the focus is put on the creation of heterojunctions with another narrow bandgap semiconductor, which can provide high response in the visible light region. In this review paper, we report the most recent advances in the application of TiO2 based heterojunction (semiconductor-semiconductor) composites for photocatalytic water treatment and water splitting. This review article is subdivided into two major parts, namely Photocatalytic water treatment and Photocatalytic water splitting, to give a thorough examination of all achieved progress. The first part provides an overview on photocatalytic degradation mechanism principles, followed by the most recent applications for photocatalytic degradation and mineralization of contaminants of emerging concern (CEC), such as pharmaceuticals and pesticides with a critical insight into removal mechanism, while the second part focuses on fabrication of TiO2-based heterojunctions with carbon-based materials, transition metal oxides, transition metal chalcogenides, and multiple composites that were made of three or more semiconductor materials for photocatalytic water splitting.

Machine learning aided design of perovskite oxide materials for photocatalytic water splitting

2021 ◽  
Vol 60 ◽  
pp. 351-359
Author(s):  
Qiuling Tao ◽  
Tian Lu ◽  
Ye Sheng ◽  
Long Li ◽  
Wencong Lu ◽  
...  
Keyword(s):  
Machine Learning ◽  
Water Splitting ◽  
Perovskite Oxide ◽  
Oxide Materials ◽  
Photocatalytic Water Splitting ◽  
Aided Design
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