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Harnessing Near-Infrared Light for Highly Efficient Photocatalysis
Yukai Chen1, Ruizhe Wang1, Dan Wang1
1Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China.
Harnessing near-infrared (NIR) light, which constitutes 50% of solar energy, is crucial for efficient photocatalysis. This review explores advanced photocatalyst designs and strategies to utilize NIR light for enhanced solar energy conversion and environmental applications.
Area of Science:
- Materials Science
- Photocatalysis
- Renewable Energy
Background:
- Near-infrared (NIR) light, comprising ~50% of solar radiation, is underutilized in photocatalysis due to its low energy.
- This limitation significantly restricts photocatalytic solar energy conversion efficiency and broader applications.
Purpose of the Study:
- To review strategies for harnessing NIR light in photocatalysis.
- To examine advances in photocatalyst design for improved NIR light utilization.
- To summarize applications and future directions in NIR-responsive photocatalysis.
Main Methods:
- Review of photocatalyst heterojunction designs (p-n, S-scheme, Z-scheme, Type-II).
- Analysis of composition and function designs (rare earth doping, upconversion hybrids, triplet-triplet annihilation).
- Examination of photothermal-photocatalytic bifunctional designs.
Main Results:
- Significant progress has been made in utilizing NIR light through various material and design strategies.
- NIR-responsive photocatalysts show promise in energy and environmental applications.
- Heterojunctions, upconversion materials, and bifunctional designs are key approaches.
Conclusions:
- Advanced photocatalyst designs effectively harness NIR light for enhanced solar energy conversion.
- NIR-responsive photocatalysts offer promising solutions for energy and environmental challenges.
- Further research is needed to overcome existing challenges and optimize NIR light utilization in photocatalysis.
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