Abstract
The degradation of formic acid (HCOOH), FA (a surrogate contaminant) using titanium dioxide (TiO2) and 1% Pt doped TiO2 electrodes, prepared by sol—gel methods, was investigated in a photoelectrocatalytic (PEC) system in order to determine the effect of Pt doping on the oxidation potential of TiO2. Pt doping shifts the position of band edge and therefore the direct and indirect oxidation potentials of TiO2 in PEC systems. As a result, the degradation of formic acid via the generation of hydrogen peroxide production on 1%Pt—TiO2 electrodes was much better than that on non-doped electrodes. The degradation of HCOOH was also examined with respect to the faradaic efficiency of this process. It was found that the 1%Pt—TiO2 photoanode had a 30% higher efficiency than that of non-doped TiO2 photoanodes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Fujishima and K. Honda, Nature 238 (1972) 37.
K. Fujihara, T. Ohno and M. Matsumara, J. Chem. Soc. Faraday Trans. 94 (1998) 3705.
R. Meissner, R. Memming and B. Kastening, Chem. Phy. Letts. 27 (1986) 419.
M. Bekbolet and G. Ozkosemen, Water Sci. Res. 33 (1996) 189.
S.D. Richardson, A.D. Thruston, T.W. Collette, K.S. Patterson, B.W. Lykins and J.C. Ireland, Environ. Sci. Technol. 30 (1996) 3327.
B.R. Eggins, F.L. Palmer and J.A. Byrne, Water Res. 31 (1997) 1223.
J.C. Lee, M.S. Kim and B.W. Kim, Water Res. 36 (2002) 1776.
G.S. Shaphard, S. Stockenstrom, D. de Villiers, W.J. Engelbrecht and G.F. Wessels, Water Res. 36 (2002) 140.
J. Krysa, L. Vodehnal and L. Jirkovsky, J. Appl. Electrochem. 29 (1999) 429.
D.H. Kim and M.A. Anderson, Environ Sci. Technol. 28 (1994) 479.
K. Vinodgopal, U. Sta.ord, K.A. Gray and P.V. Kamat, J. Phys. Chem. 98 (1994) 6797.
I.M. Buterfield, P.A. Christensen, A. Hamnett, K.E. Shaw, G.M.Walker and S.A. Walker, J. Appl. Electrochem. 27 (1997) 385.
J.M. Kesselman, N.S. Lewis and M.R. Hoffmann, Environ. Sci. Technol. 31 (1997) 2298.
R. Pelegrini, J. Reyes, N. Duran, P.P. Zamora and A.R. De Andrade, J. Appl. Electrochem. 30 (2000) 953.
X.Z. Li, F.B. Li, C.M. Fan and Y.P. Sun, Water Res. 36 (2002) 2215.
M.V.B. Zanoni, J.J. Sene and M.A. Anderson, J. Photochem. Photobiol. 157 (2002) 55.
J.C. Harper, T.A. Egerton, T.P. Curtis and J. Gunlazuardi, J. Appl. Electrochem. 31 (2001) 623.
P.S.M. Dunlop, J.A Byrne, N. Manga and B.R Eggins, J. Photochem. Photobiol. A 148 (2002) 355.
P.A. Christensen, T.P. Curtis, T.A. Egerton, S.A.M. Kosa and J.R. Tinlin, Appl. Catal. B 41 (2003) 371.
O.H. Finklea, Photoelectrochemistry 60 (1983) 325.
K. Sayama and H. Arakava, J. Chem. Soc. Faraday Trans. 93 (1997) 1647.
Q. Xu and M.A. Anderson, J. Mater. Res. 6 (1991) 1073.
R. Candal, W.A. Zeltner and M.A. Anderson, J. Environ. Eng. 3 (1999) 906.
M. Bekbolet, J. Environ. Sci. Health A 31 (1996) 845.
R. Candal, W.A. Zeltner and M.A. Anderson, Environ. Sci. Technol. 34 (2000) 3443.
J. Krysa and J. Jirkovsky, J. Appl. Electrochem. 32 (2002) 591.
G. Waldner, J. Krysa, J. Jirkovsky and G. Grabner, Int. J. Photoenergy 5 (2003) 115.
C.K. Scheck and F.H. Frimmel, Water Res. 29 (1995) 2346.
P. Clechet, C. Martelet, J.R. Martin and R. Olier, Electrochim. Acta 24 (1979) 457.
J.M. Herrmann, J. Dissier and P. Pichat, J. Chem. Soc. Faraday Trans. 1 (1981) 2815.
H. Gericher and A. Heller, J. Electrochem. Soc. 139 (1992) 113.
J. Kiwi and M. Gratzel, J. Phys. Chem. 91 (1987) 6673.
J.R. Harbour, J. Tromp and M.L. Hair, Can J. Chem. 63 (1985) 204.
G. Munuera, A.R. Gonzalezlipe and A. Fernandez, J. Chem. Soc. Faraday Trans. 1 (1989) 1297.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Selcuk, H., Zaltner, W., Sene, J. et al. Photocatalytic and Photoelectrocatalytic Performance of 1% Pt Doped TiO2 for the Detoxification of Water. Journal of Applied Electrochemistry 34, 653–658 (2004). https://doi.org/10.1023/B:JACH.0000021931.36151.54
Issue Date:
DOI: https://doi.org/10.1023/B:JACH.0000021931.36151.54