A facile polyol-mediated approach to tunable CeO2 microcrystals and their photocatalytic activity

Gang Cheng; Jinyan Xiong; Florian J. Stadler

doi:10.1016/j.powtec.2013.07.033

A facile polyol-mediated approach to tunable CeO₂ microcrystals and their photocatalytic activity

Gang Cheng, Jinyan Xiong, Florian J. Stadler^*

^*Corresponding author for this work

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

15 Scopus citations

Abstract

An efficient solvothermal method was developed to prepare CeO₂ microcrystals with different shapes using a polyol-ethanol mixed solvent as the reaction medium. The as-synthesized product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV-vis diffuse reflectance spectroscopy (DRS). It was found that different kinds or amounts of polyols and the concentration of oleic acid have significant impacts on the well-defined CeO₂ microcrystals. The as-synthesized CeO₂ microcrystals displayed different optical absorption properties and different photocatalytic performances for the degradation of Rhodamine B (RhB) under UV and visible light irradiation, which was used to model sunlight.

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Powder Technology
Volume	249
DOIs	https://doi.org/10.1016/j.powtec.2013.07.033
State	Published - Nov 2013
Externally published	Yes

Keywords

CeO
Electron microscopy
Microstructure
Polyol-mediated synthesis
Shape control

ASJC Scopus subject areas

General Chemical Engineering

Access to Document

10.1016/j.powtec.2013.07.033

Cite this

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title = "A facile polyol-mediated approach to tunable CeO2 microcrystals and their photocatalytic activity",

abstract = "An efficient solvothermal method was developed to prepare CeO2 microcrystals with different shapes using a polyol-ethanol mixed solvent as the reaction medium. The as-synthesized product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV-vis diffuse reflectance spectroscopy (DRS). It was found that different kinds or amounts of polyols and the concentration of oleic acid have significant impacts on the well-defined CeO2 microcrystals. The as-synthesized CeO2 microcrystals displayed different optical absorption properties and different photocatalytic performances for the degradation of Rhodamine B (RhB) under UV and visible light irradiation, which was used to model sunlight.",

keywords = "CeO, Electron microscopy, Microstructure, Polyol-mediated synthesis, Shape control",

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year = "2013",

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volume = "249",

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T1 - A facile polyol-mediated approach to tunable CeO2 microcrystals and their photocatalytic activity

AU - Cheng, Gang

AU - Xiong, Jinyan

AU - Stadler, Florian J.

PY - 2013/11

Y1 - 2013/11

N2 - An efficient solvothermal method was developed to prepare CeO2 microcrystals with different shapes using a polyol-ethanol mixed solvent as the reaction medium. The as-synthesized product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV-vis diffuse reflectance spectroscopy (DRS). It was found that different kinds or amounts of polyols and the concentration of oleic acid have significant impacts on the well-defined CeO2 microcrystals. The as-synthesized CeO2 microcrystals displayed different optical absorption properties and different photocatalytic performances for the degradation of Rhodamine B (RhB) under UV and visible light irradiation, which was used to model sunlight.

AB - An efficient solvothermal method was developed to prepare CeO2 microcrystals with different shapes using a polyol-ethanol mixed solvent as the reaction medium. The as-synthesized product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV-vis diffuse reflectance spectroscopy (DRS). It was found that different kinds or amounts of polyols and the concentration of oleic acid have significant impacts on the well-defined CeO2 microcrystals. The as-synthesized CeO2 microcrystals displayed different optical absorption properties and different photocatalytic performances for the degradation of Rhodamine B (RhB) under UV and visible light irradiation, which was used to model sunlight.

KW - CeO

KW - Electron microscopy

KW - Microstructure

KW - Polyol-mediated synthesis

KW - Shape control

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DO - 10.1016/j.powtec.2013.07.033

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