Size effect of Au nanoparticles in Au-TiO2-x photocatalyst

Lina Lin; Qilan Zhong; Yunzhe Zheng; Yan Cheng; Ruijuan Qi; Rong Huang

doi:10.1016/j.cplett.2021.138457

Size effect of Au nanoparticles in Au-TiO_2-x photocatalyst

Lina Lin, Qilan Zhong, Yunzhe Zheng, Yan Cheng, Ruijuan Qi, Rong Huang^*

^*Corresponding author for this work

School of Physics and Electronic Science

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

A model system of oxygen vacancy modified titanium dioxide (TiO_2-x) nanobelts supported Au nanoparticles with different sizes is prepared for methylene blue photodegradation. The Au/TiO_2-x heterostructure with the smallest Au size exhibits the best performance than other samples. Based on detailed microstructural investigations, the effect of Au particle size on the photocatalytic performance is revealed in the view points of electron transfer mechanism and interface microstructure. It implicates that although the size effect determines the overall photoelectric properties of samples, it is the number and transport behavior of carriers at the interface that fundamentally affect the photocatalytic performance.

Original language	English
Article number	138457
Journal	Chemical Physics Letters
Volume	770
DOIs	https://doi.org/10.1016/j.cplett.2021.138457
State	Published - May 2021

Keywords

Au-TiO
Charge transfer
Microstructure
Photocatalysis
Size effect

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10.1016/j.cplett.2021.138457

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title = "Size effect of Au nanoparticles in Au-TiO2-x photocatalyst",

abstract = "A model system of oxygen vacancy modified titanium dioxide (TiO2-x) nanobelts supported Au nanoparticles with different sizes is prepared for methylene blue photodegradation. The Au/TiO2-x heterostructure with the smallest Au size exhibits the best performance than other samples. Based on detailed microstructural investigations, the effect of Au particle size on the photocatalytic performance is revealed in the view points of electron transfer mechanism and interface microstructure. It implicates that although the size effect determines the overall photoelectric properties of samples, it is the number and transport behavior of carriers at the interface that fundamentally affect the photocatalytic performance.",

keywords = "Au-TiO, Charge transfer, Microstructure, Photocatalysis, Size effect",

author = "Lina Lin and Qilan Zhong and Yunzhe Zheng and Yan Cheng and Ruijuan Qi and Rong Huang",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = may,

doi = "10.1016/j.cplett.2021.138457",

language = "英语",

volume = "770",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Size effect of Au nanoparticles in Au-TiO2-x photocatalyst

AU - Lin, Lina

AU - Zhong, Qilan

AU - Zheng, Yunzhe

AU - Cheng, Yan

AU - Qi, Ruijuan

AU - Huang, Rong

PY - 2021/5

Y1 - 2021/5

N2 - A model system of oxygen vacancy modified titanium dioxide (TiO2-x) nanobelts supported Au nanoparticles with different sizes is prepared for methylene blue photodegradation. The Au/TiO2-x heterostructure with the smallest Au size exhibits the best performance than other samples. Based on detailed microstructural investigations, the effect of Au particle size on the photocatalytic performance is revealed in the view points of electron transfer mechanism and interface microstructure. It implicates that although the size effect determines the overall photoelectric properties of samples, it is the number and transport behavior of carriers at the interface that fundamentally affect the photocatalytic performance.

AB - A model system of oxygen vacancy modified titanium dioxide (TiO2-x) nanobelts supported Au nanoparticles with different sizes is prepared for methylene blue photodegradation. The Au/TiO2-x heterostructure with the smallest Au size exhibits the best performance than other samples. Based on detailed microstructural investigations, the effect of Au particle size on the photocatalytic performance is revealed in the view points of electron transfer mechanism and interface microstructure. It implicates that although the size effect determines the overall photoelectric properties of samples, it is the number and transport behavior of carriers at the interface that fundamentally affect the photocatalytic performance.

KW - Au-TiO

KW - Charge transfer

KW - Microstructure

KW - Photocatalysis

KW - Size effect

UR - https://www.scopus.com/pages/publications/85101676773

U2 - 10.1016/j.cplett.2021.138457

DO - 10.1016/j.cplett.2021.138457

M3 - 文章

AN - SCOPUS:85101676773

SN - 0009-2614

VL - 770

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 138457

ER -

Size effect of Au nanoparticles in Au-TiO_2-x photocatalyst

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Keywords

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