Preparation of Ag+ Doped Nanometer TiO2 Photocatalyst with Sol-gel Auto-igniting Synthesis Method

Author

Zaifeng, Shi ; Shu, Guo ; Xuefang, Song ; Huaide, Song ; Juan, Li

Author_Institution

Sch. of Chem. & Chem. Eng., Hainan Normal Univ., Haikou, China

fYear

2011

fDate

19-20 Feb. 2011

Firstpage

2149

Lastpage

2152

Abstract

To investigate the photocatalytic activity of metal ion doped TiO₂ synthesized with sol-gel auto-igniting synthesis (SAS) method, Ag-TiO₂ photocatalyst was synthesized with TiCl₄ as raw materials, citric acid as combustion agent, ammonium nitrate as assistant. Methylene blue was degraded with synthesized catalyst illuminated by UV light and sun light separately. Results showed that the photocatalytic activity increased when Ag loading was 1.5% (mol), which was 2.18 times of that with UV light and 1.14 times of that with sun light as light source separately. However, excessive loading of Ag would decrease the photocatalytic activity of TiO₂.

Keywords

catalysis; catalysts; combustion; nanofabrication; nanostructured materials; photochemistry; silver; sol-gel processing; sunlight; titanium compounds; TiO₂:Ag; UV light; ammonium nitrate; catalyst; citric acid; combustion agent; doped nanometer photocatalyst; methylene blue; photocatalytic activity; sol-gel auto-igniting synthesis; sunlight; Degradation; Iron; Light sources; Loading; Powders; Synthetic aperture sonar; Titanium; Ag+ doped; SAS; TiO2;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on

Conference_Location

Changsha

Print_ISBN

978-1-61284-278-3

Electronic_ISBN

978-0-7695-4350-5

Type

conf

DOI

10.1109/CDCIEM.2011.112

Filename

5748249