REE Lanthanum Doping Influence on the Photocatalysis Properties of Titanium Dioxide

Abstract:

Lanthanum doping TiO2 were prepared by sol-gel method, an the photocatalytic degradation experiments were performed by using methyl orange solution as a target degradant. The results indicated that Suitable doping quantity of lanthanum can improve the photocatalytic activity of nanometer TiO2 powders. On the basis of 50 mL methyl orange solution what concentration is 20 mg/L, photocatalytic activity is the best when doping quantity of lanthanum were 1.0 wt %. Through the relatively experiments by using sunshine and ultraviolet as light source, the results indicated that the La3+ doping broaden the scope of visible light area what TiO2 response to.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 388-391
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.388
• Online since: July 2012
• Authors: Xing Jin*, Jin Lan Lian, Yu Qiao
• Keywords: Doping, Photocatalysis, Sunshine, TiO₂

References

[1] Wu Xiaohang, Ding Xianbo, Qin Wei, He Weidong, Jiang Zhao-hua． Enhanced photo-catalytic activity of TiO2 films with doped La prepared by micro-plasma oxidation method[J]．Journal of Hazardous Materials B, 2006, 137：192．

DOI: 10.1016/j.jhazmat.2006.01.053

[2] ISHIBAI Y,SATO J ,NISHIKAWA T ,et al . Synt hesis of visi2 ble2light active TiO2 photocatalyst wit h Pt2modification :role of TiO2 subst rate for high photocatalytic activity[J ] . Appl . Catal . B ,2008 ,79 (2) :1172121.

DOI: 10.1016/j.apcatb.2007.09.040

[3] L I Zhaohui ,DONG Tiaotiao , ZHANG Yongfan , et al . Studieson In (OH) y Sz solid solutions: synt heses ,characterizations ,e2 lect ronic st ructure ,and visible2light2driven photocatalytic activ2 ities[J ] . J . Phys. Chem. C ,2007 ,111 (12) :472724733.

[4] XU Shihong ,FENG Daolun ,SHANG GUAN Wenfeng. Prep2arations and photocatalytic properties of visible2light2active zinc ferrite2doped TiO2 photocatalyst [ J ] . J . Phys. Chem. C ,2009 ,113 (6) :246322467.

[5] A kira Fujish ima, Rao Tata N , Tryk Donald A.T itanium D ioxide Pho tocatalysis [ J ]. Journal of Pho tochem ist ry and Pho tobio logy C: Pho toche2m ist ry Review s, 2000, (1) : 1221

[6] Ohno T , Tok ieda K. Synergism Betw een Rut ile and A natase T iO 2 Part icles in Pho tocatalyt ic Oxidat ion of N aph thalene [J ]. App lied Catalysis A: General,2003, 244 (2) : 3832388.

[7] Rodriguez T R,V argas S. Modificat ion of the Phase Transit ion Temperatures in Titania Doped w ith V arious Cat ions [J ]. Journal of M aterial Research,1997 (12) : 4392441.

[8] Yang Y, Li X J, Chen J T. Effect of doping mode on the photo catalyt ic activities of Mo/TiO2 [ J ] . J. Photochem. Photobiol . A:Chem. , 2004, 163( 3) : 517.