These authors contributed equally to this study.
Hierarchical TiO2/V2O5 Multifunctional Membrane for Water Purification
Article first published online: 4 SEP 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 78, Issue 12, pages 1475–1482, December 2013
How to Cite
Gao, P., Tai, M. H. and Sun, D. D. (2013), Hierarchical TiO2/V2O5 Multifunctional Membrane for Water Purification. ChemPlusChem, 78: 1475–1482. doi: 10.1002/cplu.201300264
- Issue published online: 10 DEC 2013
- Article first published online: 4 SEP 2013
- Manuscript Received: 12 JUL 2013
- National Research Foundation of Singapore. Grant Number: NRF2007EWT-CERP01-0420
- water chemistry
Membrane technology provides a new choice to solve the looming clean water scarcity crisis. However, severe membrane fouling is a great challenge in the membrane-based water treatment field. In this study, a new hierarchical TiO2/V2O5 multifunctional membrane was fabricated for the first time by assembling TiO2/V2O5 composites as a functional layer on top of the polymer supporting layer. Compared with conventional membranes, this multifunctional membrane is capable of concurrently filtering water and removing water pollutants to produce clean water without membrane fouling. Hence, this membrane can sustain high permeate flux for a longer period. These virtues can be attributed to the following reasons, among others: 1) low resistance of the nanofibrous functional layer, 2) enhanced light absorption and scattering of the hierarchical nanostructure, and 3) facilitated charge separation owing to the heterojunctions between TiO2 and V2O5. This novel membrane opens up a new avenue for the fabrication of a next-generation multifunctional membrane.