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High‐Performance Multifunctional TiO 2 Nanowire Ultrafiltration Membrane with a Hierarchical Layer Structure for Water Treatment
Author(s) -
Zhang Xiwang,
Zhang Tong,
Ng Jiawei,
Sun Darren Delai
Publication year - 2009
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200901435
Subject(s) - ultrafiltration (renal) , materials science , membrane , filtration (mathematics) , chemical engineering , nanowire , photocatalysis , hydrothermal circulation , porosity , layer (electronics) , fouling , membrane fouling , portable water purification , nanotechnology , water treatment , chromatography , composite material , catalysis , waste management , organic chemistry , chemistry , engineering , biochemistry , statistics , mathematics
A novel, multifunctional TiO 2 nanowire ultrafiltration (UF) membrane with a layered hierarchical structure is made via alkaline hydrothermal synthesis, followed by a filtration and hot‐press process. The TiO 2 UF membrane has high surface porosity (21.3%) and pore size values around 20 nm. The membrane possesses multifunctional capabilities under UV irradiation, such as anti‐fouling, anti‐bacterial, concurrent separation, and photocatalytic oxidation. The unique properties of the membrane indicate its potential in applications for environmental purification.