Rapid Decolorization of Rhodamine B by UV/Fe(III)-Penicillamine Process under Neutral pH: Compared with UV/Fe(III)-Oxalate


Article Preview

This study investigated the decolorization of Rhodamine B by the UV/Fe(III)-Oxalate and UV/Fe(III)-Penicillamine process under neutral pH. Fe(III)-Penicillamine complexes showed much higher photoactivity than that of Fe(III)-Oxalate complexes. The efficiency for decolorization of Rhodamine B at pH 5.0 was 59% and 88% in Fe(III)-Oxalate and Fe(III)-Penicillamine complexes aqueous solution after 60 min irradiation, respectively, whereas, 35% and 57% was achieved at pH 7.0. Compared to the Fe(III)/Oxalate system, the kinetic constants kapp (min-1) for Rhodamine B decolorization in Fe(III)/Penicillamine system increased 2.4 and 2.0 times at pH 5.0 and 7.0, respectively. According to the obtained results, it was quite reasonable to conclude that penicillamine should play a similar role in Fe(III)-Penicillamine aqueous solution as oxalate did in Fe(III)-Oxalate solution. The results obtained indicated that the UV/Fe(III)-Penicillamine process was probably an alternative method to treat dye pollutant at neutral pH condition.



Advanced Materials Research (Volumes 183-185)

Edited by:

Yanguo Shi and Jinlong Zuo






X. F. Xue et al., "Rapid Decolorization of Rhodamine B by UV/Fe(III)-Penicillamine Process under Neutral pH: Compared with UV/Fe(III)-Oxalate", Advanced Materials Research, Vols. 183-185, pp. 130-134, 2011

Online since:

January 2011




[1] E. Forgacs, T. Cserháti, G. Oros: Environ. Int. Vol. 30 (2004), p.953.

[2] R. Ganesh, G.D. Boardman, D. Michelsen: Water Res. Vol. 28 (1994), p.1367.

[3] M.S. Lucas, J.A. Peres: Dyes Pigments Vol. 71 (2006), p.236.

[4] B.B. Wang, F. Wu, P.X. Li and N.S. Deng: React. Kinet. Catal. Lett. Vol. 92 (2007), p.3.

[5] B.C. Faust, R.G. Zepp: Environ. Sci. Technol. Vol. 27 (1993), p.2517.

[6] J. Jeong, J. Yoon: Water Res. Vol. 39 (2005), p.2893.

[7] E.M. Siedlecka, A. Więckowska, P. Stepnowski: J. Hazard. Mater. Vol. 147 (2007), p.497.

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