Microwave-assisted hydrothermal synthesis of Au/TiO2/SBA-15 for enhanced visible-light photoactivity

Yu Chen; Jingyu Wang; Weizun Li; Meiting Ju

doi:10.1016/j.matlet.2015.04.030

Microwave-assisted hydrothermal synthesis of Au/TiO₂/SBA-15 for enhanced visible-light photoactivity

Yu Chen, Jingyu Wang, Weizun Li, Meiting Ju^*

^*Corresponding author for this work

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

Abstract

Abstract In this study, a two-step microwave-assisted hydrothermal synthetic approach was adopted to prepare a Au/TiO₂/SBA-15 photocatalyst. Results from X-ray diffraction, N₂ sorption, and transmission electron microscopy analyses confirmed the formation of a composite with an ordered mesoporous structure over highly dispersed TiO₂ as well as a close contact between the Au and TiO₂ nanoparticles within the SBA-15 framework. Compared to the commercial P25 and TiO₂/SBA-15 catalysts, the as-prepared Au/TiO₂/SBA-15 photocatalyst exhibited a markedly enhanced photocatalytic activity for the decomposition of methylene blue under visible-light irradiation.

Original language	English
Article number	18773
Pages (from-to)	131-134
Number of pages	4
Journal	Materials Letters
Volume	159
DOIs	https://doi.org/10.1016/j.matlet.2015.04.030
State	Published - 8 Jul 2015
Externally published	Yes

Keywords

Microwave
Nanoparticles
Photocatalytic
Porous materials
Titanium

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10.1016/j.matlet.2015.04.030

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title = "Microwave-assisted hydrothermal synthesis of Au/TiO2/SBA-15 for enhanced visible-light photoactivity",

abstract = "Abstract In this study, a two-step microwave-assisted hydrothermal synthetic approach was adopted to prepare a Au/TiO2/SBA-15 photocatalyst. Results from X-ray diffraction, N2 sorption, and transmission electron microscopy analyses confirmed the formation of a composite with an ordered mesoporous structure over highly dispersed TiO2 as well as a close contact between the Au and TiO2 nanoparticles within the SBA-15 framework. Compared to the commercial P25 and TiO2/SBA-15 catalysts, the as-prepared Au/TiO2/SBA-15 photocatalyst exhibited a markedly enhanced photocatalytic activity for the decomposition of methylene blue under visible-light irradiation.",

keywords = "Microwave, Nanoparticles, Photocatalytic, Porous materials, Titanium",

author = "Yu Chen and Jingyu Wang and Weizun Li and Meiting Ju",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.matlet.2015.04.030",

language = "אנגלית",

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T1 - Microwave-assisted hydrothermal synthesis of Au/TiO2/SBA-15 for enhanced visible-light photoactivity

AU - Chen, Yu

AU - Wang, Jingyu

AU - Li, Weizun

AU - Ju, Meiting

PY - 2015/7/8

Y1 - 2015/7/8

N2 - Abstract In this study, a two-step microwave-assisted hydrothermal synthetic approach was adopted to prepare a Au/TiO2/SBA-15 photocatalyst. Results from X-ray diffraction, N2 sorption, and transmission electron microscopy analyses confirmed the formation of a composite with an ordered mesoporous structure over highly dispersed TiO2 as well as a close contact between the Au and TiO2 nanoparticles within the SBA-15 framework. Compared to the commercial P25 and TiO2/SBA-15 catalysts, the as-prepared Au/TiO2/SBA-15 photocatalyst exhibited a markedly enhanced photocatalytic activity for the decomposition of methylene blue under visible-light irradiation.

AB - Abstract In this study, a two-step microwave-assisted hydrothermal synthetic approach was adopted to prepare a Au/TiO2/SBA-15 photocatalyst. Results from X-ray diffraction, N2 sorption, and transmission electron microscopy analyses confirmed the formation of a composite with an ordered mesoporous structure over highly dispersed TiO2 as well as a close contact between the Au and TiO2 nanoparticles within the SBA-15 framework. Compared to the commercial P25 and TiO2/SBA-15 catalysts, the as-prepared Au/TiO2/SBA-15 photocatalyst exhibited a markedly enhanced photocatalytic activity for the decomposition of methylene blue under visible-light irradiation.

KW - Microwave

KW - Nanoparticles

KW - Photocatalytic

KW - Porous materials

KW - Titanium

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AN - SCOPUS:84936777901

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VL - 159

SP - 131

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JO - Materials Letters

JF - Materials Letters

M1 - 18773

ER -

Microwave-assisted hydrothermal synthesis of Au/TiO₂/SBA-15 for enhanced visible-light photoactivity

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