Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10670003 | Thin Solid Films | 2012 | 5 Pages |
Abstract
This study describes the synthesis of TiO2 membranes on alumina supports by the spin-coating technique using the sol-gel method with water-soluble chitosan (WSC) as an additive. After calcining the sample at 500 °C, the WSC was completely decomposed, and the remaining membrane consisted mainly of anatase. Controlling the amount of WSC in the TiO2 sol to within a range of 0.1 wt.%-0.3 wt.% resulted in TiO2 membranes on alumina supports with enhanced structural and catalytic properties. These properties included a high surface area (164 m2/g-116 m2/g) and porosity (47.3%-52.2%), homogeneity without cracks and pinholes, thinness (0.8 μm), as well as high degradation of methyl orange (61.2%-49.2%).
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xiaodong Wang, Fang Shi, Wei Huang, Caimei Fan,