Advanced Materials· 2017Q1· Review
Heterojunction Photocatalysts
- 4,852citations
- Q1SCImago
- 2017year
Short summary
Engineered heterojunction photocatalysts enhance solar fuel production and pollutant degradation by spatially separating photogenerated electron-hole pairs, overcoming limitations of fast recombination and low light utilization.
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Key points
- Heterojunction photocatalysts improve efficiency by separating electron-hole pairs.
- This separation addresses issues of fast recombination and low light utilization.
- Applications include solar fuel production (hydrogen, hydrocarbons) and pollutant degradation.
- The review covers basic principles, recent developments, and future perspectives.
AI-generated from the title and abstract; the full text is not read.
Abstract
Semiconductor-based photocatalysis attracts wide attention because of its ability to directly utilize solar energy for production of solar fuels, such as hydrogen and hydrocarbon fuels and for degradation of various pollutants. However, the efficiency of photocatalytic reactions remains low due to the fast electron-hole recombination and low light utilization. Therefore, enormous efforts have been undertaken to solve these problems. Particularly, properly engineered heterojunction photocatalysts are shown to be able to possess higher photocatalytic activity because of spatial separation of photogenerated electron-hole pairs. Here, the basic principles of various heterojunction photocatalysts are systematically discussed. Recent efforts toward the development of heterojunction photocatalysts for various photocatalytic applications are also presented and appraised. Finally, a brief summary and perspectives on the challenges and future directions in the area of heterojunction photocatalysts are also provided.
The authors' abstract, as published at the source. Advanced Materials, 2017 · DOI ↗
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Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy