Abstract
A facile method was developed to prepare antimony doped tin oxide (Sb-SnO2)/carbon aerogel (CA) for use as an electrocatalytic filtration membrane. The preparation process included synthesis of a precursor sol, impregnation, and thermal decomposition. The Sb-SnO2, which was tetragonal in phase with an average crystallite size of 10.8 nm, was uniformly distributed on the CA surface and firmly attached via carbon-oxygen-tin chemical bonds. Preliminary filtration tests indicated that the Sb-SnO2/CA membrane had a high rate of total organic carbon removal for aqueous tetracycline owing to its high current efficiency and electrode stability.
Highlights
Electrochemical filtration membrane has great advantage and potential for wastewater treatment because it can effectively enhance pollutant degradation and reduce membrane fouling.[1]
Preliminary filtration tests indicated that the Sb-SnO2/carbon aerogel (CA) membrane had a high rate of total organic carbon removal for aqueous tetracycline owing to its high current efficiency and electrode stability
Electrochemical filtration membrane has been reported to be effective towards oxidation of organics and ions,[3,4,5] and conductive material with porous structure is required for membrane electrode
Summary
Electrochemical filtration membrane has great advantage and potential for wastewater treatment because it can effectively enhance pollutant degradation and reduce membrane fouling.[1]. To our best knowledge, few attentions were paid to the application of CA in membrane filtration, let alone in electrochemical membrane filtration. This was probably due to the absence of appropriate pore structure and mechanical strength of CA. Owing to its high surface area and OEP, the as-prepared Sb-SnO2/CA composite membrane material is suitable for water purification, which could take advantage of membrane separation and electrocatalytic oxidation effect
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