Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment
Photocatalytic ceramic membranes have attracted considerable attention for industrial wastewater treatment. However, morphological control of the membrane surface to improve its photocatalytic reactivity for the degradation of organic pollutants remains a challenge. Herein, we report a new nanostruc...
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doaj-6529c9a99f50466288871285bf356c2f2020-11-25T00:09:36ZengMDPI AGApplied Sciences2076-34172017-12-01712128410.3390/app7121284app7121284Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater TreatmentRizwan Ahmad0Jin Kyu Kim1Jong Hak Kim2Jeonghwan Kim3Department of Environmental Engineering, Inha University, Inharo-100, Namgu, Incheon 402751, KoreaDepartment of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Environmental Engineering, Inha University, Inharo-100, Namgu, Incheon 402751, KoreaPhotocatalytic ceramic membranes have attracted considerable attention for industrial wastewater treatment. However, morphological control of the membrane surface to improve its photocatalytic reactivity for the degradation of organic pollutants remains a challenge. Herein, we report a new nanostructured TiO2/Al2O3 composite ceramic membrane prepared from a poly(oxyethylene methacrylate) (POEM) template through a sol–gel method and its photocatalytic performance in the treatment of a model dye compound. The POEM polymeric template allowed the homogeneous distribution of catalytic sites, i.e., the TiO2 layer, on the Al2O3 membrane surface, resulting in improved organic dye degradation along with effective fouling mitigation. The immobilization of a TiO2 layer on the Al2O3 membrane support also significantly enhanced the membrane adsorption capacity toward dye organic compounds. An organic removal efficiency of over 96% was achieved with the TiO2/Al2O3 composite membrane under Ultraviolet (UV) irradiation. In addition, the self-cleaning efficiency of the TiO2/Al2O3 composite membrane was remarkably improved by the degradation of organic foulants on the membrane under UV illumination.https://www.mdpi.com/2076-3417/7/12/1284photocatalytic membraneantifoulingpolymer templateTiO2adsorption |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rizwan Ahmad Jin Kyu Kim Jong Hak Kim Jeonghwan Kim |
spellingShingle |
Rizwan Ahmad Jin Kyu Kim Jong Hak Kim Jeonghwan Kim Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment Applied Sciences photocatalytic membrane antifouling polymer template TiO2 adsorption |
author_facet |
Rizwan Ahmad Jin Kyu Kim Jong Hak Kim Jeonghwan Kim |
author_sort |
Rizwan Ahmad |
title |
Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment |
title_short |
Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment |
title_full |
Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment |
title_fullStr |
Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment |
title_full_unstemmed |
Nanostructured Ceramic Photocatalytic Membrane Modified with a Polymer Template for Textile Wastewater Treatment |
title_sort |
nanostructured ceramic photocatalytic membrane modified with a polymer template for textile wastewater treatment |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2017-12-01 |
description |
Photocatalytic ceramic membranes have attracted considerable attention for industrial wastewater treatment. However, morphological control of the membrane surface to improve its photocatalytic reactivity for the degradation of organic pollutants remains a challenge. Herein, we report a new nanostructured TiO2/Al2O3 composite ceramic membrane prepared from a poly(oxyethylene methacrylate) (POEM) template through a sol–gel method and its photocatalytic performance in the treatment of a model dye compound. The POEM polymeric template allowed the homogeneous distribution of catalytic sites, i.e., the TiO2 layer, on the Al2O3 membrane surface, resulting in improved organic dye degradation along with effective fouling mitigation. The immobilization of a TiO2 layer on the Al2O3 membrane support also significantly enhanced the membrane adsorption capacity toward dye organic compounds. An organic removal efficiency of over 96% was achieved with the TiO2/Al2O3 composite membrane under Ultraviolet (UV) irradiation. In addition, the self-cleaning efficiency of the TiO2/Al2O3 composite membrane was remarkably improved by the degradation of organic foulants on the membrane under UV illumination. |
topic |
photocatalytic membrane antifouling polymer template TiO2 adsorption |
url |
https://www.mdpi.com/2076-3417/7/12/1284 |
work_keys_str_mv |
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1725411029964292096 |