Microwave-Assisted Vacuum Synthesis of TiO 2 Nanocrystalline Powders in One-Pot, One-Step Procedure

A new method for fast and simple synthesis of crystalline TiO nanoparticles with photocatalytic activity was developed by carrying out a classic sol-gel reaction directly under vacuum. The use of microwaves for fast heating of the reaction medium further reduces synthesis times. When the solvent is...

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Published inNanomaterials (Basel, Switzerland) Vol. 12; no. 1
Main Authors Paradisi, Enrico, Rosa, Roberto, Baldi, Giovanni, Dami, Valentina, Cioni, Andrea, Lorenzi, Giada, Leonelli, Cristina
Format Journal Article
LanguageEnglish
Published Switzerland 31.12.2021
Subjects
microwaves
synthesis under vacuum
sol–gel synthesis
TiO2 nanoparticles
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Abstract A new method for fast and simple synthesis of crystalline TiO nanoparticles with photocatalytic activity was developed by carrying out a classic sol-gel reaction directly under vacuum. The use of microwaves for fast heating of the reaction medium further reduces synthesis times. When the solvent is completely removed by vacuum, the product is obtained in the form of a powder that can be easily redispersed in water to yield a stable nanoparticle suspension, exhibiting a comparable photocatalytic activity with respect to a commercial product. The present methodology can, therefore, be considered a process intensification procedure for the production of nanotitania.
AbstractList A new method for fast and simple synthesis of crystalline TiO nanoparticles with photocatalytic activity was developed by carrying out a classic sol-gel reaction directly under vacuum. The use of microwaves for fast heating of the reaction medium further reduces synthesis times. When the solvent is completely removed by vacuum, the product is obtained in the form of a powder that can be easily redispersed in water to yield a stable nanoparticle suspension, exhibiting a comparable photocatalytic activity with respect to a commercial product. The present methodology can, therefore, be considered a process intensification procedure for the production of nanotitania.
Author Dami, Valentina
Lorenzi, Giada
Leonelli, Cristina
Paradisi, Enrico
Rosa, Roberto
Cioni, Andrea
Baldi, Giovanni
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  surname: Leonelli
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  organization: Department of Engineering "Enzo Ferrari" (DIEF), University of Modena and Reggio Emilia, 41125 Modena, Italy
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synthesis under vacuum
sol–gel synthesis
TiO2 nanoparticles
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Snippet A new method for fast and simple synthesis of crystalline TiO nanoparticles with photocatalytic activity was developed by carrying out a classic sol-gel...
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