Effects of Sulphuric Acid Treatment on Photocatalytic Red Dye of TiO2 Films Prepared by Micro-Arc Oxidation

Abstract:

Article Preview

With tribasic sodium phosphate (Na3PO4) as electrolytic liquid, to adopt micro-arc oxidation (MAO) prepares titanium oxide films directly on the titanium net surface. In order to improve the photocatalytic activity of TiO2 films prepared by micro-arc oxidation, the titanium oxide films were treated by Sulphuric acid aqueous. The structures before and after surface acid treatment were characterized by XRD, SEM, EDX,and photocatalytic ability of titanium oxide coatings were evaluated by photocatalytic degradation of acid brilliant scarlet dye aqueous solution . It was found out that the titanium oxide films were mainly made of titanium and anatase. The sodium at titanium dioxide/itanium (TiO2/Ti) film surface was reduced after the Sulphuric acid treatment. The photocatalytic activity of the titanium oxide films were enhanced after Sulphuric acid treatment. When Sulphuric acidaqueous concentration is 0.1mol•L-1 and soak time is 18 hours, the TiO2/Ti films photocatalytic degradation rate increased from 15% to 31%.

Info:

Periodical:

Advanced Materials Research (Volumes 113-116)

Edited by:

Zhenyu Du and X.B Sun

Pages:

2357-2361

DOI:

10.4028/www.scientific.net/AMR.113-116.2357

Citation:

H. D. Su and H. L. Du, "Effects of Sulphuric Acid Treatment on Photocatalytic Red Dye of TiO2 Films Prepared by Micro-Arc Oxidation", Advanced Materials Research, Vols. 113-116, pp. 2357-2361, 2010

Online since:

June 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.