Abstract
To investigate the interaction of Cr(VI) and phenol in the photocatalytic process, the photocatalytic reaction of the mixed solution of these two pollutants was carried out using poly(fluorene-co-thiophene) modified TiO2 photocatalyst and visible light. In this mixed system, the removal efficiency in the presence of Cr(VI) and phenol were higher than that produced by individual systems, indicating a synergetic effect between the reduction of Cr(VI) and degradation of phenol. In the mixed system, Cr(VI) ions were reduced by the photo-generated electrons, and phenol was oxidized by photo-generated holes. In the presence of Cr(VI) ions, both the photocatalytic degradation and mineralization efficiency of phenol were promoted, but the promoting role was not the same. There was an optimum value of phenol/Cr(VI) molar ratio (1: 1) in the degradation process. If the ratio was less than 1 : 1, the promoting effect decreased slowly but was still fairly distinct. The mineralization efficiency of phenol increased gradually with the increasing concentration of Cr(VI) ions, but when phenol/Cr(VI) was less than 1 : 1, the rate of increase became slower.
Similar content being viewed by others
References
Chen, Y.N. and Chai, L.Y., Int. Conf. Bioinform. Biomed. Eng., 2008, vols. 16–18, p. 3248.
Pan, G. and Kurumada, K.I., Chem. Eng. J., 2008, vol. 138, p. 194.
Fager, V.S.K., Watts, J.E.M., May, H.D., and Sowers, K.R., Water Res., 2011, vol. 45, p. 3899.
Prairie, M.R., Evans, L.R., Stange, B.M., and Martinez, S.L., Environ. Sci. Technol., 1993, vol. 27, p. 1776.
Prairie, M.R. and Stange, B.M., AIChE. Symp. Ser., 1993, vol. 89, p. 460.
Mu, S., Long, Y.Z., and Kang, S.Z., Catal. Commun., 2010, vol. 11, p. 741.
Fu, H.X., Lu, G.X., and Li, S.B., Acta Phys. Chim., 1997, vol. 13, p. 106.
Vinu, R. and Madras, G., Environ. Sci. Technol., 2008, vol. 42, p. 913.
Wan, N., Zhu, L.H., Deng, K.J., She, Y.B., Yu, Y.M., and Tang, H.Q., Appl. Catal., B, 2010, vol. 95, p. 400.
Khalyavka, T.A., Tsyba, N.N., Kamyshan, S.V.E., and Kapinus, I., Russ. J. Phys. Chem. A, 2015, vol. 89, p. 148.
You, Y.J., Zhang, Y.X., Li, R.R., and Li, C.H., Russ. J. Phys. Chem. A, 2014, vol. 88, p. 2188.
Yao, S.H., Zhang, Y.X., Shi, Z.L., and Wang, S.F., Russ. J. Phys. Chem. A, 2013, vol. 87, p. 69.
Song, L., Qiu, R.L., Mo, Y.Q., Zhang, D.D., Wei, H., and Xiong, Y., Catal. Commun., 2007, vol. 8, p. 429.
Zhang, D.D., Qiu, R.L., Song, L., Eric, B., Mo, Y.Q., and Huang, X.F., J. Hazard. Mater., 2009, vol. 163, p. 843.
Qiu, R.L., Zhang, D.D., Diao, Z.H., Huang, X.F., He, C., Morel, J.L., and Xiong, Y., Water Res., 2012, vol. 46, p. 2299.
Zhang, D.D., Qiu, R.L., Ning, P., and Wang, S.Z., Fresenius Environ. Bull., 2014, vol. 23, p. 18.
Zhang, D.D., Qiu, R.L., Wei, A.B., and Wang, S.Z., Kinet. Catal., 2014, vol. 55, p. 793.
Tian, L.H., Liu, H.T., and Gao, Y., Kinet. Catal., 2012, vol. 53, p. 554.
Standard Methods for the Examination of Water and Wastewater, Clescerl, L.S., Greenberg, A.E., and Eaton, A.D., Eds., Washington, DC: American Public Health Association, 1999.
Yu, X.P., He, D.P., Cai, D.C., and Liu, J.J., J. Sichuan Univ. Sci. Eng., 2006, vol. 19, p. 97.
Temkin, O.N., Kinet. Catal, 2012, vol. 53, p. 313.
Khalil, L.B., Mourad, W.E., and Rophael, M.W., Appl. Catal., B, 1998, vol. 17, p. 267.
Baba, R., Konda, R., and Fujishima, A., Chem. Lett., 1986, vol. 15, p. 1307.
Wang, G.H., Wu, F., Zhang, X., Luo, M.D., and Deng, N.S., J. Photochem. Photobiol., A, 2005, vol. 5, p. 1.
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Zhang, D., Wei, A., Zhang, J. et al. The photocatalytic interaction of Cr(VI) ions and phenol on polymer-modified TiO2 under visible light irradiation. Kinet Catal 56, 569–573 (2015). https://doi.org/10.1134/S0023158415050195
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0023158415050195