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Surface Plasmon-Based Nanomaterials as Photocatalyst

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Advanced Nanostructured Materials for Environmental Remediation

Part of the book series: Environmental Chemistry for a Sustainable World ((ECSW,volume 25))

Abstract

In recent era, plasmonic photocatalysts have facilitated rapid progress in improving the photocatalytic efficiency under visible light irradiation, increasing the prospect of using sunlight for environmental and energy applications, such as wastewater treatment, water splitting, and carbon dioxide reduction. Plasmonic photocatalysis makes use of noble metal NPs dispersed in semiconductor photocatalysts and has two prominent features, a Schottky junction and localized SPR effect. With the advances in fundamental and experimental studies on plasmon-mediated photocatalysis, the rational design and synthesis of metal/semiconductor and carbon-based hybrid nanostructures as photocatalysts have been realized. This chapter highlights a recently reported and easy methodology for the fabrication of SPR-based materials and its real developments in plasmon-mediated photocatalytic mechanisms, such as Schottky junctions, direct electron transfer, enhanced local electric field, plasmon resonant energy transfer, and scattering and heating effects. In addition, this chapter also summarizes the factors, size, shape, geometry, loading, and composition of plasmonic metal, as well as the nanostructure and properties of semiconductors that mainly affect the photodegradation of dyes. Finally, a perspective on future directions within this rich field of research is provided.

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Acknowledgment

This study was supported by the Priority Research Centers Program by Basic Science Research Program (Grant No: 2015R1D1A3A03018029) through the National Research Foundation of Korea (NRF) funded by the Korean Ministry of Education.

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Khan, M.E., Cho, M.H. (2019). Surface Plasmon-Based Nanomaterials as Photocatalyst. In: Naushad, M., Rajendran, S., Gracia, F. (eds) Advanced Nanostructured Materials for Environmental Remediation. Environmental Chemistry for a Sustainable World, vol 25. Springer, Cham. https://doi.org/10.1007/978-3-030-04477-0_7

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