Unique Cd0.5Zn0.5S/WO3-x direct Z-scheme heterojunction with S, O vacancies and twinning superlattices for efficient photocatalytic water-splitting

2022 ◽  
Author(s):  
Teng Hou ◽  
Hanchu Chen ◽  
Yanyan Li ◽  
Hui Wang ◽  
Fengli Yu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Natural Photosynthesis

Photocatalytic water-splitting employing the Z-scheme semiconductor systems mimicking natural photosynthesis is regarded as a promising way to achieve the efficient soalr-to-H2 conversion. Nevertheless, it still remains a big challenge to...

Enhanced the solar-to-hydrogen efficiency for photocatalytic water splitting based on polarized heterostructure: The role of intrinsic dipole in heterostructures

2021 ◽  
Author(s):  
Xinyi Liu ◽  
Peng Cheng ◽  
Xiuhai Zhang ◽  
Tao Shen ◽  
Jia Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Natural Photosynthesis

Inspired by natural photosynthesis, direct Z-scheme heterostructures are considered as promising photocatalysts for solar-driven water splitting and attract ever-growing interest. To date, it is still a challenge to achieve a...

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

Built-in electric field for photocatalytic overall water splitting through a TiO2/BiOBr P–N heterojunction

Nanoscale ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 4496-4504
Author(s):  
Qianqian Chi ◽  
Genping Zhu ◽  
Dongmei Jia ◽  
Wei Ye ◽  
Yikang Wang ◽  
...  
Keyword(s):  
Electric Field ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting

A p–n heterojunction of TiO2/BiOBr with a strong built-in electric field has been constructed to simultaneously obtain hydrogen and oxygen through a photocatalytic water splitting.

Sign in / Sign up

Export Citation Format

Share Document