Plasmonic Au nanoparticles supported on both sides of TiO2 hollow spheres for maximising photocatalytic activity under visible light

Jianwei Lu, Lan Lan, Xiaoteng Terence Liu, Na Wang, Xiaolei Fan

Research output: Journal PublicationArticlepeer-review

11 Citations (Scopus)

Abstract

A strategy of intensifying the visible light harvesting ability of anatase TiO2 hollow spheres (HSs) was developed, in which both sides of TiO2 HSs were utilised for stabilising Au nanoparticles (NPs) through the sacrificial templating method and convex surface-induced confinement. The composite structure of single Au NP yolk-TiO2 shell-Au NPs, denoted as Au@Au(TiO2, was rendered and confirmed by the transmission electron microscopy analysis. Au@Au(TiO2 showed enhanced photocatalytic activity in the degradation of methylene blue and phenol in aqueous phase under visible light surpassing that of other reference materials such as Au(TiO2 by 77% and Au@P25 by 52%, respectively, in phenol degradation. [Figure not available: see fulltext.]/.

Original languageEnglish
Pages (from-to)665-671
Number of pages7
JournalFrontiers of Chemical Science and Engineering
Volume13
Issue number4
DOIs
Publication statusPublished - 1 Dec 2019
Externally publishedYes

Keywords

  • confinement
  • photocatalytic degradation
  • plasmonic Au nanoparticles
  • TiO hollow spheres
  • visible light

ASJC Scopus subject areas

  • Chemical Engineering (all)

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