Direct Photocatalysis for Organic Synthesis by Using Plasmonic‐Metal Nanoparticles Irradiated with Visible Light

Abstract

Recent advances in direct-use plasmonic-metal nanoparticles (NPs) as photocatalysts to drive organic synthesis reactions under visible-light irradiation have attracted great interest. Plasmonic-metal NPs are characterized by their strong interaction with visible light through excitation of the localized surface plasmon resonance (LSPR). Herein, we review recent developments in direct photocatalysis using plasmonic-metal NPs and their applications. We focus on the role played by the LSPR of the metal NPs in catalyzing organic transformations and, more broadly, the role that light irradiation plays in catalyzing the reactions. Through this, the reaction mechanisms that these light-excited energetic electrons promote will be highlighted. This review will be of particular interest to researchers who are designing and fabricating new plasmonic-metal NP photocatalysts by identifying important reaction mechanisms that occur through light irradiation.

Surface Plasmon-Assisted Solar Energy Conversion

“…Nonetheless, it has to be emphasized that the main subject here is the synergistic effect of plasmonic metal nanoparticles and optically active semiconductors that can be used for solar energy conversion to fuel. The reader is referred to previous reviews covering the principle and applications of direct plasmonic photocatalysis [102][103][104].…”

The application of heterogeneous visible light photocatalysts in organic synthesis

“…Therefore, visible light photocatalyst employed as a bridging media for the energy transfer between visible light and substrates will be of particular importance. Those photocatalysts can be divided into five different groups including the homogeneous photocatalysts represented by Ru, Ir metal complexes, [15][16][17][18][19][20][21][22][23][24][25][26] organic dye [27][28][29][30] and the opposite heterogeneous photocatalysts represented by semiconductors, [31][32][33] plasmonicmetal nanoparticles [34][35] and other novel photoelectric materials [36][37][38][39] . As known to all, heterogeneous visible light catalyst can be easily recovered and the reaction products can be separated more conveniently with respect to the homogeneous ones, so it provides a greener way for the organic chemical transformation.…”

Nanoplasmonic Photoluminescence Spectroscopy at Single‐Particle Level: Sensing for Ethanol Oxidation

“…[6] Therefore,a nother promising use of plasmonic nanostructures centers on recently demonstrated direct SPR-induced photocatalysis on excited plasmonic metal NPs. [7] Meanwhile,t om onitor the chemical reaction on singlemetal NPs,n anoplasmonic sensing strategies have been adapted and tailored successfully for probing catalysts in situ and in real time. [8] One of the strategies relies on the SPR sensitivity towards the changes of the plasmonic particles itself,since the SPR frequency of metallic NPs is well-known to depend strongly on the particle size,s hape and materials.…”