Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide

Sara Baldassari, Sridhar Komarneni, Emilia Mariani, Carla Villa

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1% sulfuric acid, while less aggregated nanoparticles were obtained with 0.1% sulfuric acid.

Original languageEnglish (US)
Pages (from-to)3238-3240
Number of pages3
JournalJournal of the American Ceramic Society
Volume88
Issue number11
DOIs
StatePublished - Nov 2005

Fingerprint

Hydrothermal synthesis
Titanium dioxide
Sulfuric acid
Microwaves
Crystallization
Nanoparticles
Microwave irradiation
Sulfates
Hydrolysis
Titanium
titanium dioxide
Electrons
sulfuric acid

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

Baldassari, Sara ; Komarneni, Sridhar ; Mariani, Emilia ; Villa, Carla. / Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide. In: Journal of the American Ceramic Society. 2005 ; Vol. 88, No. 11. pp. 3238-3240.
@article{abf53e610b4f4030a673729ca8ce85b4,
title = "Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide",
abstract = "Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1{\%} sulfuric acid, while less aggregated nanoparticles were obtained with 0.1{\%} sulfuric acid.",
author = "Sara Baldassari and Sridhar Komarneni and Emilia Mariani and Carla Villa",
year = "2005",
month = "11",
doi = "10.1111/j.1551-2916.2005.00562.x",
language = "English (US)",
volume = "88",
pages = "3238--3240",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "11",

}

Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide. / Baldassari, Sara; Komarneni, Sridhar; Mariani, Emilia; Villa, Carla.

In: Journal of the American Ceramic Society, Vol. 88, No. 11, 11.2005, p. 3238-3240.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide

AU - Baldassari, Sara

AU - Komarneni, Sridhar

AU - Mariani, Emilia

AU - Villa, Carla

PY - 2005/11

Y1 - 2005/11

N2 - Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1% sulfuric acid, while less aggregated nanoparticles were obtained with 0.1% sulfuric acid.

AB - Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1% sulfuric acid, while less aggregated nanoparticles were obtained with 0.1% sulfuric acid.

UR - http://www.scopus.com/inward/record.url?scp=33745420084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745420084&partnerID=8YFLogxK

U2 - 10.1111/j.1551-2916.2005.00562.x

DO - 10.1111/j.1551-2916.2005.00562.x

M3 - Article

VL - 88

SP - 3238

EP - 3240

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 11

ER -