Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1677148 | Thin Solid Films | 2006 | 7 Pages |
Abstract
Nanosized TiO2 with controlled crystal phase/structure was prepared by a sol–hydrothermal process using titanium (IV) n-butoxide as a precursor of TiO2. After hydrothermal processing at 200 °C for 1 h, the granulous anatase phase with average crystal size of 5 nm was formed. Upon increasing the heat treatment period to more than 5 h, the rod-like rutile phase with particle size of 19 × 70 nm became predominant. The structure evolution from X-ray diffraction (XRD), particle size/morphology from transmission electron microscopy (TEM), surface area from Brunauer–Emmitt–Teller (BET) analysis, and photocatalytic activity of TiO2 products show strong correlation with the hydrothermal conditions.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
C. Su, C.-M. Tseng, L.-F. Chen, B.-H. You, B.-C. Hsu, S.-S. Chen,