Effect of the Preparation Method (Sol-Gel or Hydrothermal) and Conditions on the TiO2 Properties and Activity for Propene Oxidation

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/83453
Información del item - Informació de l'item - Item information
Title: Effect of the Preparation Method (Sol-Gel or Hydrothermal) and Conditions on the TiO2 Properties and Activity for Propene Oxidation
Authors: Cano-Casanova, Laura | Amorós-Pérez, Ana | Lillo-Rodenas, Maria Angeles | Román-Martínez, M. Carmen
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: TiO2 synthesis method | HCl | Photocatalysis | Gas phase | VOCs elimination
Knowledge Area: Química Inorgánica
Issue Date: 9-Nov-2018
Publisher: MDPI
Citation: Cano-Casanova L, Amorós-Pérez A, Lillo-Ródenas MÁ, Román-Martínez MC. Effect of the Preparation Method (Sol-Gel or Hydrothermal) and Conditions on the TiO2 Properties and Activity for Propene Oxidation. Materials. 2018; 11(11):2227. doi:10.3390/ma11112227
Abstract: Since the two most commonly used methods for TiO2 preparation are sol-gel (SG) and hydrothermal (HT) synthesis, this study attempts to compare both methods in order to determine which one is the most suitable to prepare photocatalysts for propene oxidation. In addition, this work studies how the concentration of the HCl used for hydrolysis of the TiO2 precursor affects the properties of the obtained materials. Also, the effect of avoiding the post-synthesis heat-treatment in a selection of samples is investigated. The photocatalysts are characterized by XRD, N2 adsorption-desorption isotherms and UV-vis spectroscopy, and the study tries to correlate the properties with the photocatalytic performance of the prepared TiO2 samples in propene oxidation. TiO2 materials with high crystallinity, between 67% and 81%, and surface area (up to 134 m2/g) have been obtained both by SG and HT methods. In general, the surface area and pore volume of the TiO2-HT samples are larger than those of TiO2-SG ones. The TiO2-HT catalysts are, in general, more active than TiO2-SG materials or P25 in the photo-oxidation of propene. The effect of HCl presence during the TiO2 synthesis and of the post synthesis heat treatment are much more marked in the case of the SG materials.
Sponsor: This research was funded by MINECO and FEDER, project of reference CTQ2015-66080-R, GV/FEDER (PROMETEO/2018/076) and University of Alicante (VIGROB-136).
URI: http://hdl.handle.net/10045/83453
ISSN: 1996-1944
DOI: 10.3390/ma11112227
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Peer Review: si
Publisher version: https://doi.org/10.3390/ma11112227
Appears in Collections:INV - MCMA - Artículos de Revistas

Files in This Item:
Files in This Item:
File Description SizeFormat 
Thumbnail2018_Cano-Casanova_etal_Materials.pdf1,54 MBAdobe PDFOpen Preview


This item is licensed under a Creative Commons License Creative Commons