Title :
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
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;
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
DOI :
10.1109/CDCIEM.2011.112
