Novel functionalized nano-TiO2 loading electrocatalytic membrane for oily wastewater treatment

Environmental Science & Technology
Yang YangShijun Liao

Abstract

Membrane fouling is a critical problem in membrane filtration processes for water purification. Electrocatalytic membrane reactor (ECMR) was an effective method to avoid membrane fouling and improve water quality. This study focuses on the preparation and characterization of a novel functionalized nano-TiO(2) loading electrocatalytic membrane for oily wastewater treatment. A TiO(2)/carbon membrane used in the reactor is prepared by coating TiO(2) as an electrocatalyst via a sol-gel process on a conductive microporous carbon membrane. In order to immobilize TiO(2) on the carbon membrane, the carbon membrane is first pretreated with HNO(3) to generate the oxygen-containing functional groups on its surface. X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and X-ray photoelectron spectroscopy (XPS) analyses are used to evaluate the morphology and microstructure of the membranes. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements are employed to illustrate the eletrochemical activity of the TiO(2)/carbon membrane. The membrane performance is investigated by treating oily wastewater. The oil removal rate increases...Continue Reading

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Citations

Apr 30, 2016·Environmental Science & Technology·Chang LiuHan-Qing Yu
Aug 18, 2020·Environmental Science and Pollution Research International·Sung-Yoon HuhJaena Ryu
Aug 24, 2018·Environmental Science and Pollution Research International·Nesrin OzmenMurat Ozmen
Jun 5, 2018·Chemosphere·Clément TrelluMarc Cretin
May 22, 2013·Environmental Science & Technology·Amr M Zaky, Brian P Chaplin
May 2, 2020·Environmental Science & Technology·Xiaoxiong WangMenachem Elimelech

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