The effect of aging and precursor concentration on room-temperature synthesis of nanocrystalline anatase TiO2

Angela Wong; Walid A. Daoud; Hanhua Liang; Yau Shan Szeto

doi:10.1016/j.matlet.2013.11.056

The effect of aging and precursor concentration on room-temperature synthesis of nanocrystalline anatase TiO2

Angela Wong, Walid A. Daoud, Hanhua Liang, Yau Shan Szeto

School of Energy and Environment

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

25 Citations (Scopus)

Abstract

A sol-gel method to synthesize nanocrystalline anatase in aqueous medium at room temperature is presented. Unlike other sol-gel synthesis routes reported, no inorganic acids or heat treatment were used in this method. Comprehensive characterization of TiO₂ nanoparticles including crystal structures and morphology was performed. The effect of precursor concentration and aging time on crystallinity and crystallite size was studied. It has been found that while crystallization occurred at room temperature, the longer the aging time, the greater the crystallinity. Precursor concentration has a slight effect on the crystallite size and affects the aging time and the viscosity of the sol. © 2013 Published by Elsevier B.V.

Original language	English
Pages (from-to)	82-85
Journal	Materials Letters
Volume	117
DOIs	https://doi.org/10.1016/j.matlet.2013.11.056
Publication status	Published - 15 Feb 2014

Research Keywords

Nanocrystalline materials
Nanoparticles
Sol-gel preparation
Solar energy materials

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title = "The effect of aging and precursor concentration on room-temperature synthesis of nanocrystalline anatase TiO2",

abstract = "A sol-gel method to synthesize nanocrystalline anatase in aqueous medium at room temperature is presented. Unlike other sol-gel synthesis routes reported, no inorganic acids or heat treatment were used in this method. Comprehensive characterization of TiO2 nanoparticles including crystal structures and morphology was performed. The effect of precursor concentration and aging time on crystallinity and crystallite size was studied. It has been found that while crystallization occurred at room temperature, the longer the aging time, the greater the crystallinity. Precursor concentration has a slight effect on the crystallite size and affects the aging time and the viscosity of the sol. {\textcopyright} 2013 Published by Elsevier B.V.",

keywords = "Nanocrystalline materials, Nanoparticles, Sol-gel preparation, Solar energy materials",

author = "Angela Wong and Daoud, {Walid A.} and Hanhua Liang and Szeto, {Yau Shan}",

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doi = "10.1016/j.matlet.2013.11.056",

language = "English",

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journal = "Materials Letters",

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TY - JOUR

T1 - The effect of aging and precursor concentration on room-temperature synthesis of nanocrystalline anatase TiO2

AU - Wong, Angela

AU - Daoud, Walid A.

AU - Liang, Hanhua

AU - Szeto, Yau Shan

PY - 2014/2/15

Y1 - 2014/2/15

N2 - A sol-gel method to synthesize nanocrystalline anatase in aqueous medium at room temperature is presented. Unlike other sol-gel synthesis routes reported, no inorganic acids or heat treatment were used in this method. Comprehensive characterization of TiO2 nanoparticles including crystal structures and morphology was performed. The effect of precursor concentration and aging time on crystallinity and crystallite size was studied. It has been found that while crystallization occurred at room temperature, the longer the aging time, the greater the crystallinity. Precursor concentration has a slight effect on the crystallite size and affects the aging time and the viscosity of the sol. © 2013 Published by Elsevier B.V.

AB - A sol-gel method to synthesize nanocrystalline anatase in aqueous medium at room temperature is presented. Unlike other sol-gel synthesis routes reported, no inorganic acids or heat treatment were used in this method. Comprehensive characterization of TiO2 nanoparticles including crystal structures and morphology was performed. The effect of precursor concentration and aging time on crystallinity and crystallite size was studied. It has been found that while crystallization occurred at room temperature, the longer the aging time, the greater the crystallinity. Precursor concentration has a slight effect on the crystallite size and affects the aging time and the viscosity of the sol. © 2013 Published by Elsevier B.V.

KW - Nanocrystalline materials

KW - Nanoparticles

KW - Sol-gel preparation

KW - Solar energy materials

UR - http://www.scopus.com/inward/record.url?scp=84890909206&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84890909206&origin=recordpage

U2 - 10.1016/j.matlet.2013.11.056

DO - 10.1016/j.matlet.2013.11.056

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 117

SP - 82

EP - 85

JO - Materials Letters

JF - Materials Letters

ER -

The effect of aging and precursor concentration on room-temperature synthesis of nanocrystalline anatase TiO2

Abstract

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