Pillared clays as catalysts for methyl parathion removal by advanced oxidation processes

Autor:	Mostefa Abbessi, Adel Balaska, Salim Kouraichi, Hassane Boudouh, Mohamed El-Hadi Samar
Rok vydání:	2015
Předmět:	Advanced oxidation process Intercalation (chemistry) Inorganic chemistry Heterogeneous catalysis Catalysis law.invention chemistry.chemical_compound chemistry law Bentonite Parathion methyl Calcination Fourier transform infrared spectroscopy Nuclear chemistry
Zdroj:	Catalysis Science & Technology. 5:1052-1064
ISSN:	2044-4761 2044-4753
DOI:	10.1039/c4cy00324a
Popis:	A natural bentonite from Mostaganem in Algeria was modified by intercalation with polyoxocationic solutions (Al·Fe, Al·Co, Al·Cu, Al·Fe·Cu or Al·Fe·La). The modification of the bentonite occurred via pillaring by ionic exchange with these solutions. The addition of these solutions led to the formation of pillared clays with important catalytic properties in environmental impact reactions. The structural and textural properties of materials calcined at 500 °C were determined by several techniques: X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and N2 adsorption–desorption analysis. The pillared clays were then used as a Fenton-type heterogeneous catalyst for the heterogeneous sono-Fenton process for the oxidation of methyl parathion in water. The catalytic tests revealed the activity of the introduced iron species and the promoter effect of lanthanide or copper on the catalytic activity of these species. The sono-Fenton method showed promising results for the degradation of methyl parathion when compared with the Fenton method. Therefore, the sono-Fenton method can be a viable alternative technology to the existing methods for treating methyl parathion in wastewater.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a0d6bf26ec92409339eea3e9dbb04615 https://doi.org/10.1039/c4cy00324a Zobrazit plný text záznamu