Heterogeneous Fenton-like oxidation of p-hydroxybenzoic acid using Fe/CeO2-TiO2 catalyst-Reference-Cited by-同舟云学术

Heterogeneous Fenton-like oxidation of p-hydroxybenzoic acid using Fe/CeO2-TiO2 catalyst

Published:2019-04-01 Issue:7 Volume:79 Page:1276-1286
ISSN:0273-1223
Container-title:Water Science and Technology
language:en
Short-container-title:

Author:

Hammedi Tijani¹²,Triki Mohamed³,Alvarez Mayra G.⁴,Llorca Jordi⁵,Ghorbel Abdelhamid¹,Ksibi Zouhaier¹,Medina Francesc⁴

Affiliation:

1. Faculté des Sciences de Tunis, Laboratoire de Chimie des Matériaux et Catalyse, Université de Tunis El Manar, 2092 El Manar, Tunisia

2. Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, Dalian 116023, Liaoning, China

3. Centre National des Recherches en Sciences des Matériaux, Laboratoire de Valorisation des Matériaux Utiles (LVMU), Pôle Technologique Borj Cedria, 8027 Soliman, Tunisia

4. Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av/Països Catalans 26, 43007 Tarragona, Spain

5. Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 16, 08019 Barcelona, Spain

Abstract

Abstract This paper is built on the Fenton-like oxidation of p-hydroxybenzoic acid (p–HBZ) in the presence of H2O2 and 3%Fe supported on CeO2-TiO2 aerogels under mild conditions. These catalysts were deeply characterized by X-ray diffraction (XRD), hydrogen temperature programmed reduction (H2-TPR), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy (XPS). The effect of thermal treatment, pH (2–3, 5, 7), H2O2/p–HBZ molar ratio (5, 15, 20, 25) and reaction temperature (25 °C, 40 °C and 60 °C) on the catalytic properties of supported Fe catalysts are studied. Our results highlight the role of CeO2 and the calcination of the catalyst to obtain the highest catalytic properties after 10 min: 73% of p–HBZ conversion and 52% of total organic carbon (TOC) abatement.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

http://iwaponline.com/wst/article-pdf/79/7/1276/618590/wst079071276.pdf

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