Electrochemical dechlorination of 2,4-dichlorophenol in aqueous solution on palladium-loaded meshed titanium electrode

被引：12

作者：

Sun, Z. R. ^{[1
]}

Gao, M. ^{[1
]}

Peng, Y. Z. ^{[1
]}

Hu, X. ^{[2
]}

机构：

[1] Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

[2] Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2011年 / 63卷 / 02期

基金：

中国国家自然科学基金;

关键词：

2,4-dichlorophenol; electrochemical dechlorination; palladium/titanium electrode; removal efficiency;

D O I：

10.2166/wst.2011.033

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Electrochemical dechlorination of 2,4-dichlorophenol (2,4-DCP) in aqueous solution was investigated on palladium-loaded meshed titanium (Pd/Ti) electrode at ambient temperature. Pd/Ti electrode was prepared with an electrodepositing method. Scanning Electron Microscope (SEM) micrographs show that Pd microparticles uniformly disperse on the meshed Ti supporting electrode with spheroidal structure. Dechlorination experimental results indicate that, in aqueous solution, with the current efficiency of 24.3%, the removal efficiency of 100 mg/L 2,4-DCP on Pd/Ti electrode was 93.2% under the conditions of the dechlorination current of 5 mA and dechlorination time of 90 min. The effect of initial 2,4-DCP concentration was also investigated.

引用

页码：199 / 205

页数：7

共 15 条

[1]

Brillas E., Banos M.A., Skoumal M., Cabot P.L., Garrido J.A., Rodriguez R.M., Degradation of the herbicide 2,4-DP by anodic oxidation, electro-Fenton and photoelectro-Fenton using platinum and boron-doped diamond anodes, Chemosphere, 68, 2, pp. 199-209, (2007)

[2]

Chen G., Wang Z.Y., Xia D.G., Electrochemically codeposited palladium/molybdenum oxide electrode for electrocatalytic reductive dechlorination of 4-chlorophenol, Electrochem. Commun., 6, 3, pp. 268-272, (2004)

[3]

Chen G., Wang Z.Y., Yang T., Huang D.D., Xia D.G., Electrocatalytic hydrogenation of 4-chlorophenol on the glassy carbon electrode modified by composite polypyrrole/palladium film, J. Phys. Chem. B, 110, 10, pp. 4863-4868, (2006)

[4]

Cheng H., Scott K., Christensen P.A., Hydrodehalogenation of 2,4-dibromophenol by electrochemical reduction, J. Appl. Electrochem., 33, 10, pp. 893-899, (2003)

[5]

Cheng H., Scott K., Christensen P.A., Electrochemical hydrodehalogenation of chlorinated phenols in aqueous solutions. Part I. Material aspects, J. Electrochem. Soc., 150, 2, (2003)

[6]

Cheng H., Scott K., Christensen P.A., Electrochemical hydrodehalogenation of chlorinated phenols in aqueous solutions. Part II. Effect of operating parameters, J. Electrochem. Soc., 150, 2, (2003)

[7]

Cheng I.F., Fernando Q., Korte N., Electrochemical dechlorination of 4-chlorophenol to phenol, Environ. Sci. Technol., 31, 4, pp. 1074-1078, (1997)

[8]

Jalil A.A., Panjang N.F.A., Akhbar S., Sundang M., Tajuddin N., Triwahyono S., Complete electrochemical dechlorination of chlorobenzenes in the presence of naphthalene mediator, J. Hazard. Mater., 148, 1-2, pp. 1-5, (2007)

[9]

Katsumata H., Kaneco S., Suzuki T., Ohta K., Yobiko Y., Sonochemical degradation of 2,3,7,8-tetrachlorodibenzo-p-dioxins in aqueous solution with Fe(III)/UV system, Chemosphere, 69, 8, pp. 1261-1266, (2007)

[10]

Kulikov S.M., Plekhanov V.P., Tsyganok A.I., Schlimm C., Heitz E., Electrochemical reductive dechlorination of chlororganic compounds on carbon cloth and metal-modified carbon cloth cathodes, Electrochim. Acta, 41, 4, pp. 527-531, (1996)

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