Synthesis, characterization and catalytic application for wet oxidation of phenol of iron-containing clays |
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Authors: | M.N. Timofeeva S.Ts. Khankhasaeva S.V. Badmaeva A.L. Chuvilin E.B. Burgina A.B. Ayupov V.N. Panchenko A.V. Kulikova |
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Affiliation: | aInstitute of Catalysis, Novosibirsk 630090, Russia bBaikal Institute of Nature Management, Ulan-Ude, Russia |
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Abstract: | High-surface-area pillared clays (PILC) were prepared from naturally occurring montmorillonites by exchanging interlayer ions to polyoxocations containing (i) aluminum (Al13-PILC), (ii) iron adsorpted onto Al13-PILC, and (iii) iron and aluminum located within the same complex (Fe0.8Al12.2-PILC). The obtained Fe0.8Al12.2-PILCs were characterized by DR–UV–vis and IR spectroscopy, XRD, ESR, scanning electron microscopy and low temperature N2 adsorption measurements. Important factors affecting catalyst activity and phenol removal efficiencies have been studied, i.e. the effect of pH, temperature, catalyst concentration and stability of the catalyst. |
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Keywords: | Catalytic wet oxidation Iron-containing pillared clay Hydrogen peroxide Phenol Wastewater treatment |
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