Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 186, Issue 2-3, Pages 1183-1192Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.11.124
Keywords
Mesoporous; Sol-gel method; Isomorphic substitution; Alachlor; Photocatalysis
Categories
Funding
- University Grants Commission (UGC), New Delhi
- CSIR, New Delhi
Ask authors/readers for more resources
Sol-gel method was used to synthesize Zr4+, La3+ and Ce3+ doped mesoporous TiO2 materials with different weight percentage (0.5, 1.0, 2.0 and 3.0 wt%) using triblock copolymer as the structure directing template in ethanol/water medium. Characterization revealed the isomorphic substitution of Zr4+ ion into the lattice of TiO2, and surface binding nature of La3+ and Ce3+ ions on mesoporous TiO2. Microscopic examination confirmed the surface adsorption of foreign ion which could alter the particle morphology. The size of the particles was less than 20 nm. Photocatalytic activity of metal ions doped mesoporous TiO2 was evaluated using aqueous alachlor as a model pollutant. It was found that 1 wt% Ce3+ doped mesoporous TiO2 exhibited higher activity than pure and other metal ions doped mesoporous TiO2. The change of oxidation state of Ce3+ is suggested to be the cause for enhanced photocatalytic activity. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available