Ferrosilicate-Based Heterogeneous Fenton Catalysts: Influence of Crystallinity, Porosity, and Iron Speciation

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Title: Ferrosilicate-Based Heterogeneous Fenton Catalysts: Influence of Crystallinity, Porosity, and Iron Speciation
Authors: Parkhomchuk, Ekaterina V. | García Aguilar, Jaime | Sashkina, Kseniya A. | Berenguer-Murcia, Ángel | Cazorla-Amorós, Diego | Dralyuk, Roman I. | Shestakova, D.O. | Ayupov, Artem B. | Danilova, Irina G. | Parmon, Valentin N.
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: Fe-silicalite-1 | Fe–SiO2 | Nanocrystals | Heterogeneous Fenton catalyst | Hydrogen peroxide | Phenol oxidation | Clarithromycin lactobionate
Knowledge Area: Química Inorgánica
Issue Date: Oct-2018
Publisher: Springer US
Citation: Catalysis Letters. 2018, 148(10): 3134-3146. doi:10.1007/s10562-018-2496-z
Abstract: Different ferrosilicate samples have been prepared with varying degrees of crystallinity, porous texture, and speciation of the Fe sites by both hydrothermal and sol–gel procedures: Fe-silicalite-1 with microcrystals (2–10 µm) and nanocrystals (180 nm), Fe-containing composite material consisting of silicalite-1 and amorphous silica, and two samples of mesoporous Fe-containing amorphous silica Fe–SiO2. The resulting solids have been tested for their potential as organic pollutants removal under Fenton-like conditions in heterogeneous catalytic wet peroxide oxidation of phenol and clarithromycin lactobionate. Our results indicate that the three aforementioned parameters show a strong interplay towards the abatement of pollutants in liquid phase. Thus, samples with high crystallinity show an improved performance in the oxidation of organic contaminants over amorphous samples in which the Fe speciation is very well controlled.
Sponsor: The work was financially supported by the Ministry of Education and Science of the Russian Federation (RFMEFI60417 X 0159, title of the agreement: “Development of methods for hydrotreating of vacuum residue into high-quality marine fuels on macroporous catalysts”). The authors from Spanish side thank the Spanish Ministry of Economy and Competitiveness (MINECO), Generalitat Valenciana and FEDER (CTQ2015-66080-R MINECO/FEDER and PROMETEOII/2014/010) for financial support. J.G.A. thanks the Spanish Ministry of Economy and Competitiveness (MINECO) for his fellowship (BES-2013-063678).
URI: http://hdl.handle.net/10045/80928
ISSN: 1011-372X (Print) | 1572-879X (Online)
DOI: 10.1007/s10562-018-2496-z
Language: eng
Type: info:eu-repo/semantics/article
Rights: © Springer Science+Business Media, LLC, part of Springer Nature 2018
Peer Review: si
Publisher version: https://doi.org/10.1007/s10562-018-2496-z
Appears in Collections:INV - MCMA - Artículos de Revistas

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