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Revista de Chimie (Rev. Chim.), Year 2011, Volume 62, Issue 6,





NICOLETA PLATON, ILIE SIMINICEANU, ILEANA DENISA NISTOR, NECULAI DORU MIRON, GABRIELA MUNTIANU, ALINA MONICA MARES
Fe - pillared Clay as an Efficient Fenton-like Heterogeneous
Catalyst for Phenol Degradation

Abstract:

In this paper, we used three catalysts - type of Fe3+ - pillared clay, with different surface areas. We studied the influence of specific surface area on the catalytic activity in the phenol removal by Fenton - like (Fe3+/H2O2) reaction. The catalysts were obtained using as starting materials clays with different structure and textural properties: Na - bentonite with the surface area of 37.5 m2/g, montmorillonite KSF with the surface area of 106 m2/g and montmorillonite K10 with the surface area of 240 m2/g, all provided by Sigma Aldrich. Catalytic wet peroxide oxidation (CWPO) of phenol (C0phenol = 250 mg/L) from process of Fenton-like has been studied at different operating conditions: T = 298 K, pH = 2.5 - 7, the catalyst dose of 0 - 20 g/L aqueous liquid, the ratio H2O2/phenol = 10 - 20. The catalyst obtained from sodium bentonite presents a high catalytic activity leading to advanced removal of phenol after only 50 minutes of reaction. Keywords: iron- containing pillared clays, phenol, Fenton-like, catalysis, CWPO reaction


Issue: 2011, Volume 62, Issue 6
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