Study on Photo-Electro-Chemical Catalytic Degradation of Reactive Brilliant Red X-3B


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A new type of photo-electro-chemical catalytic reactor was designed. The cathode of the reactor was made of highly pure graphite and the anode was made of titanium dioxide. A saturated calomel electrode (SCE) was so used as the reference electrode that the electric potential of the cathode was determined. Under the condition of ultraviolet radiation and anodic bias-voltage, reactive brilliant red X-3B was degraded in the reactor synchronously by the process of photoelectrocatalysis with titanium dioxide anode and electrogenerated hydrogen peroxide through reducing dissolved oxygen with graphite cathode. With the cooperation of the cathode and the anode, impressive decolorizing efficiency of reactive red X-3B has been achieved. The results showed that, when the concentration of reactive brilliant red X-3B was 25mg••L-1 and the inert supporting electrolyte concentration was 0.005 mol•L-1 (1000mg•L-1) sodium sulfate, initial solution ph=4, and cathodic potential -Ec = 0.60 V, under UV radiation as well as constantly pumping air into the reactor, decolorizing efficiency of 79% has been achieved.



Edited by:

Zhang Yushu






M. Y. Li et al., "Study on Photo-Electro-Chemical Catalytic Degradation of Reactive Brilliant Red X-3B", Advanced Materials Research, Vol. 213, pp. 580-585, 2011

Online since:

February 2011




[1] Negishi, N., Takeuchi, K., Preparation of photocatalytic TiO2 transparent thin film by thermal decomposition of Ti-alkoxide with α-terpineol as a solvent, Thin Solid Films, 2001, 392(2): 249―253.

DOI: 10.1016/s0040-6090(01)01036-7

[2] Tong, S. F., Peng, C. F., Tang, Y. et al., Preparation of TiO2 photocatalytic thin film using reformative sol-gel method, Chemical Journal on Internet, 2004, 6(2): 10.

[3] K. Kawasaki, J.F. Despres, S. Kamei, M. Ishikawa, O. Odawara, J. Mater. Chem. 1997, 7: 2117.

[4] A. Suisalu, J. Aarik, H. Ma ndar. et al., Spectroscopic study of nanocrystalline TiO2 thin films grown by atomic layer deposition, Thin Solid Films 1998, 336: 295-298.

DOI: 10.1016/s0040-6090(98)01314-5

[5] Hitchman, M. L., Tian, F., Studies of TiO2 thin films prepared by chemical vapour deposition for photocatalytic and photoelectrocatalytic degradation of 4-chlorophenol, Electroanalytical Chem., 2002, 538-539: 165-172.

DOI: 10.1016/s0022-0728(02)01252-4

[6] Zanoni, M. V. B., Sene, J. J., Anderson, M. A., Photoelectrocatalytic degradation of remazol brilliant orange 3R on titanium dioxide thin-film electrodes, Photochem. Photobiol. A: Chem., 2003, 157: 5-63.

DOI: 10.1016/s1010-6030(02)00320-9

[7] Leng, W. H., Zhang, Z., Zhang, J. Q., Photoelectrocatalytic degradation of aniline over rutile TiO2/Ti electrode thermally formed at 600℃, Mol. Catal. A: Chem., 2003, 206: 239-252.

DOI: 10.1016/s1381-1169(03)00373-x

[8] Li Mingyu, Xing Lin, Chen Yunyun, et al, Studies on photo-electro-chemical catalytic degradation of acid scarlet 3R dye, Science in China Ser. B Chemistry 2005, 48(4): 297-304.

DOI: 10.1360/042004-69

[9] Leng Wenhua, Zhang Zhao, Chen Shaoan, et al, A Study of Titanium Oxide Film Electrodes Prepared by Direct Thermal Oxidation, Ⅰ. Preparation , Structure and Electrochemical Properties, Chinese Journal Of Chemical Physic 2001, 14(6): 705-710.

[10] Hoffman M R , Martin S T , Wonyong Choi , et al . Environmental aplication of semiconductor photocatlysis[J ]. Chem Rev, 1995, 95: 69.

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