Title :
Preparation of Lanthanum-Doped TiO2/Ti Photoelectrode and their Photoelectrocatalytic Performance under Visible Light Irradiation
Author :
Han, Lei ; Liu, Huiling ; Xin, Yanjun ; Yu, Guanming ; Sun, Lixin
Author_Institution :
State Key Lab. of Urban Water Resources & Environ., Harbin Inst. of Technol., Harbin, China
Abstract :
La-doped TiO2/Ti photoelectrodes were prepared by anodization and characterized by SEM, XRD, XPS and UV/VIS/NIR. Photoelectrocatalytic (PEC) performance of La-doped TiO2/Ti photoelectrodes under visible light irradiation was tested. The results of these experiments showed that La-doped TiO2/Ti photoelectrodes prepared under voltage of 160 V, the current density of 100 mA/cm2, La(NO3)3 concentration of 800 mg/L has optimal photoelectrocatalytic performance in Rhodamine B degradation process. Rhodamine B removal efficiency and PEC oxidation were improved 20% and 5% respectively, by La-doped TiO2/Ti photoelectrodes than by undoped under visible light region irradiation.
Keywords :
catalysis; dyes; electrochemical electrodes; lanthanum; oxidation; photoelectrochemistry; titanium; titanium compounds; wastewater treatment; water pollution control; La(NO3)3; Rhodamine B degradation; SEM; TiO2-Ti:La; UV/VIS/NIR; XPS; XRD; anodization; lanthanum-doped TiO2/Ti photoelectrode; oxidation; photoelectrocatalysis; visible light irradiation; voltage 160 V; Chemical vapor deposition; Current density; Infrared spectra; Oxidation; Semiconductor device doping; Spectroscopy; Substrates; Surface morphology; Titanium; X-ray scattering;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163236
