Formaldehyde degradation by photocatalytic Ag-doped TiO2 film of glass fiber roving |
| |
Authors: | Ubolchonlakate Kornkanok Sikong Lek Tontai Tienchai |
| |
Affiliation: | Department of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University (PSU), Hat Yai, 90112, Thailand. |
| |
Abstract: | The photocatalytic Ag doped TiO2 porous films were prepared by sol-gel method and dip coated on glass fiber roving. The sol composed of titanium (IV) isopropoxide, triethanolamine, ethanol and nitric acid followed by calcination of the film at 500 degrees C for 1 hour with a heating rate of 3 degrees C/min. The surface morphology and properties of synthesized TiO2 films were characterized by X-ray diffraction, atomic forced microscope and scanning electron microscope. A laboratory photocatalytic reactor was set up to carry out photoactivity of the prepared catalysts. The results show that TiO2-Ag and TiO2-Ag-TEA porous films give highest rate of formaldehyde gas degradation. It can be noted that triethanolamine exhibits two effects on TiO2 composite films; one is its effect on porous film structure and second is a reverse effect of hindrance of anatase growth. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|