Photocatalytic Degradation of Bisphenol A in Aqueous Suspensions of Titanium Dioxide

Abstract:

Photocatalytic degradation of bisphenol A in aqueous solution by UV-TiO2 was studied in self-made photocatalysis reactor. The results showed that BPA was degraded effectively in UV-TiO2 photocatalysis system, and the processe followed Langmuir-Hinshelwood kinetic model. When TiO2 was dosed at 1.0 g/L, air amount was 1.2 L/min, BPA initial concentration was 10 mg/L with pH=5.5, and irradiated by a 15 W low pressure mercury vapor discharge lamp, the removal rate of BPA was up to 97%, and BPA was completely removed in 80 min when pH≥9.5; The photocatalytic removal rate constant was strongly related to the above factors.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 172-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.172
• Online since: January 2012
• Authors: Chen Zhong Jia, Qiao Yan Qin, Yan Xin Wang, Cai Xiang Zhang
• Keywords: Bisphenol A, Kinetic Mode, Photocatalytic, Rate Constant, TiO₂

References

[1] C.A. Staples, P.B. Dorn, G.M. Klecka, S.T. O'Block, and L.R. Harris, A review of the environmental fate, effects, and exposures of bisphenol A, Chemosphere, vol. 36, pp.2149-2173, April (1998).

DOI: 10.1016/s0045-6535(97)10133-3

[2] L.N. Vandenberg, R. Hauser, M. Marcus, N. Olea, and W.V. Welshons, Human exposure to bisphenol A (BPA), Reproductive Toxicology, vol. 24, pp.139-177, August (2007).

DOI: 10.1016/j.reprotox.2007.07.010

[3] R.A. Keri, S.M. Ho, P.A. Hunt, K.E. Knudsen, A.M. Soto, and G.S. Prins, An evaluation of evidence for the carcinogenic activity of bisphenol A, Reproductive Toxicology, vol. 24, pp.240-252, August (2007).

DOI: 10.1016/j.reprotox.2007.06.008

[4] Y. Mutou, Y. Ibuki, Y. Terao, S. Kojima, and R. Goto, Chemical change of chlorinated bisphenol A by ultraviolet irradiation and cytotoxicity of their products on Jurkat cells. Environmental Toxicology and Pharmacology, vol. 21, pp.283-289, May (2006).

DOI: 10.1016/j.etap.2005.09.005

[5] R.J. Wu, C.C. Chen, M.H. Chen, and C.S. Lu, Titanium dioxide-mediated heterogeneous photocatalytic degradation of terbufos: Parameter study and reaction pathways, Journal of Hazardous Materials, vol. 16, pp.945-953, March (2009).

DOI: 10.1016/j.jhazmat.2008.05.121

[6] M.J. Zhan, X. Yang, Q.M. Xian, and L.G. Kong, Photosensitized degradation of bisphenol A involving reactive oxygen species in the presence of humic substances, Chemosphere, vol. 63, pp.378-386, April (2006).

DOI: 10.1016/j.chemosphere.2005.08.046

[7] L. Wei, C. Shifu, Z. Wei, and Z. Sujuan, Titanium dioxide mediated photocatalytic degradation of methamidophos in aqueous phase, Journal of Hazardous Materials, vol. 164, pp.154-160, May (2009).

DOI: 10.1016/j.jhazmat.2008.07.140

[8] S. Parra, S.E. Stanca, I. Guasaquillo, and K.R. Thampi, Photocatalytic degradation of atrazine using suspended and supported TiO2, Applied Catalysis B-Environmental, vol. 51, pp.107-116, July (2004).

DOI: 10.1016/j.apcatb.2004.01.021

[9] H. Zhao, S.H. Xu, J.B. Zhong, and X.H. Bao, Kinetic study on the photo-catalytic degradation of pyridine in TiO2 suspension systems, Catalysis Today, vol. 93-95, pp.857-861, September (2004).

DOI: 10.1016/j.cattod.2004.06.086

[10] J.C. Garcia, and K. Takashima, Photocatalytic degradation of imazaquin in an aqueous suspension of titanium dioxide, Journal of Photochemistry and Photobiology a-Chemistry, vol. 155, pp.215-222, February (2003).

DOI: 10.1016/s1010-6030(02)00370-2

[11] W.T. Tsai, M.K. Lee, T.Y. Su, and Y.M. Chang, Photodegradation of bisphenol-A in a batch TiO2 suspension reactor. Journal of Hazardous Materials, vol. 168, pp.269-275, August (2009).

DOI: 10.1016/j.jhazmat.2009.02.034

[12] D. Bamba, P. Atheba, D. Robert, A. Trokourey, and B. Dongui, Photocatalytic degradation of the diuron pesticide, Environmental Chemistry Letters, vol. 6, pp.163-167, August (2008).

DOI: 10.1007/s10311-007-0118-x