Highly efficient hydrogen evolution reaction, plasmon-enhanced by AuNP-l-TiO₂NP photocatalysts

Abstract

A set of AuNPs-l-TiO2NPs nanoaggregates which showed efficient covering of the semiconductor's surface by AuNPs, as well as suitable AuNP sizes for LSPR-sensibilization were used as highly efficient photocatalysts for photoinduced HER.

Plasmon-Enhanced Photocatalysis Based on Plasmonic Nanoparticles for Energy and Environmental Solutions: A Review

“…The observed charge carrier separation was responsible for the obtained 150-fold H 2 generation rate, which is favorable for energy applications. Castillo-Rodriguez and colleagues studied a series of AuNPs-L-TiO 2 NPs nanoaggregates with three different aliphatic linkers, including 3-mercaptopropionic acid (MPA), thioglycolic acid (TGA), and thiolactic acid (TLA), as photocatalysts for hydrogen evolution reaction. AuNPs had different sizes based on Au/stabilizer ratio ranging from 1 to 4.5 nm with a homogeneous spherical shape.…”

“…(a) Plasmonic effect of AuNPs on photocatalytic effect of TiO 2 for HER, reproduced with permission from ref . Copyright 2020 Royal Society of Chemistry.…”