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.
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Acknowledgments: This work was supported by an Inha University research grant. Acknowledgments: This work was supported by an Inha University research grant. Author Contributions: Jeonghwan Kim and Jong Hak Kim conceived and designed the experiments; Rizwan Author Contributions: Jeonghwan Kim and Jong Hak Kim conceived and designed the experiments; Ahmad and Jin Kyu Kim performed the experiments; Rizwan Ahmad, Jin Kyu Kim, Jong Hak Kim and Rizwan Ahmad and Jin Kyu Kim performed the experiments; Rizwan Ahmad, Jin Kyu Kim, Jong Hak Kim and Jeonghwan Kim analyzed the data; Jeonghwan Kim, Jong Hak Kim, Rizwan Ahmad and Jin Kyu Kim wrote thepathepe rpaper..
© 2017 by the authors.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Process Chemistry and Technology
- Computer Science Applications
- Fluid Flow and Transfer Processes