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

doi:10.1007/s11705-019-1815-2

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 Publication › Article › peer-review

16 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 language	English
Pages (from-to)	665-671
Number of pages	7
Journal	Frontiers of Chemical Science and Engineering
Volume	13
Issue number	4
DOIs	https://doi.org/10.1007/s11705-019-1815-2
Publication status	Published - 1 Dec 2019
Externally published	Yes

Keywords

TiO hollow spheres
confinement
photocatalytic degradation
plasmonic Au nanoparticles
visible light

ASJC Scopus subject areas

General Chemical Engineering

Access to Document

10.1007/s11705-019-1815-2

Cite this

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

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.]/.",

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author = "Jianwei Lu and Lan Lan and Liu, {Xiaoteng Terence} and Na Wang and Xiaolei Fan",

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T1 - Plasmonic Au nanoparticles supported on both sides of TiO2 hollow spheres for maximising photocatalytic activity under visible light

AU - Lu, Jianwei

AU - Lan, Lan

AU - Liu, Xiaoteng Terence

AU - Wang, Na

AU - Fan, Xiaolei

PY - 2019/12/1

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N2 - 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.]/.

AB - 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.]/.

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