CLC number: X131.2; X703
On-line Access:
Received: 2006-02-24
Revision Accepted: 2006-04-29
Crosschecked: 0000-00-00
Cited: 3
Clicked: 5449
NIU Shao-feng, ZHOU Hong-yi, AO Xu-ping, XU Xin-hua, LOU Zhang-hua. Structure relationship of nitrochlorobenzene catalytic degradation process in water over palladium-iron bimetallic catalyst[J]. Journal of Zhejiang University Science B, 2006, 7(7): 548-552.
@article{title="Structure relationship of nitrochlorobenzene catalytic degradation process in water over palladium-iron bimetallic catalyst",
author="NIU Shao-feng, ZHOU Hong-yi, AO Xu-ping, XU Xin-hua, LOU Zhang-hua",
journal="Journal of Zhejiang University Science B",
volume="7",
number="7",
pages="548-552",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.B0548"
}
%0 Journal Article
%T Structure relationship of nitrochlorobenzene catalytic degradation process in water over palladium-iron bimetallic catalyst
%A NIU Shao-feng
%A ZHOU Hong-yi
%A AO Xu-ping
%A XU Xin-hua
%A LOU Zhang-hua
%J Journal of Zhejiang University SCIENCE B
%V 7
%N 7
%P 548-552
%@ 1673-1581
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.B0548
TY - JOUR
T1 - Structure relationship of nitrochlorobenzene catalytic degradation process in water over palladium-iron bimetallic catalyst
A1 - NIU Shao-feng
A1 - ZHOU Hong-yi
A1 - AO Xu-ping
A1 - XU Xin-hua
A1 - LOU Zhang-hua
J0 - Journal of Zhejiang University Science B
VL - 7
IS - 7
SP - 548
EP - 552
%@ 1673-1581
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.B0548
Abstract: Two isomers of nitrochlorobenzene (o-, and p-NCB) were treated by a pd/Fe catalyst in aqueous solutions through catalytic amination and dechlorination. Nitrochlorobenzenes are rapidly converted to form chloroanilines (CAN) first through an amination process, and then rapidly dechlorinated to become aniline (AN) and Cl−, without the involvement of any other intermediate reaction products. The amination and dechlorination reaction are believed to take place predominantly on the surface site of the pd/Fe catalysts. The dechlorination rate of the reductive degradation of the two isomers of nitrochlorobenzene (o-, and p-NCB) in the presence of pd/Fe as a catalyst was measured experimentally. In all cases, the reaction rate constants were found to increase with the decrease in the Gibbs free energy (correlation with the activation energy) of NCBs formation; the activation energy of each dechlorination reaction was measured to be 95.83 and 77.05 kJ/mol, respectively for o- and p-NCB. The results demonstrated that p-NCBs were reduced more easily than o-NCBs.
[1] Arnold, W.A., Roberts, A.L., 2000. Pathways and kinetics of chlorinated ethylene and chlorinated acetylene reaction with Fe(0) particles. Environ. Sci. & Technol., 34(9):1794-1805.
[2] Burris, D.R., Campbell, T.J., Manoranjan, V.S., 1995. Sorption of trichloroethylene and tetrachloroethylene in a batch reactive metallic iron-water system. Environ. Sci. & Technol., 29(11):2850-2855.
[3] Dolfing, J., Harrison, B.K., 1992. Gibbs free energy of formation of halogenated aromatic compounds and their potential role as electron acceptor in anaerobic environments. Environ. Sci. & Technol., 26(11):2213-2216.
[4] He, F., Zhao, D., 2005. Preparation and characterization of a new class of starch-stabilized bimetallic nanoparticles for degradation of chlorinated hydrocarbons in water. Environ. Sci. & Technol., 39(9):3314-3320.
[5] Liu, Y.H., Yang, F.L., Yue, P.L., 2001. Catalytic dechlorination of chlorophenols in water by palladium/iron. Wat. Res., 35(8):1887-1890.
[6] Muftikian, R., Fernando, Q., Korte, N., 1995. A method for the rapid dechlorination of low molecular weight chlorinated hydrocarbons in water. Water Res., 29(10):2434-2439.
[7] Scherer, M.M., Johnson, K.M., Westall, J.C., 2001. Mass transport effects on the kinetics of nitrobenzene reduction by iron metal. Environ. Sci. & Technol., 35(13):2804-2811.
[8] Su, C., Puls, R.W., 2001. Arsenate and arsenite removal by zero valent iron: effects of phosphate, silicate, carbonate, borate, sulfate, chromate, molybdeat, and nitrate, relative to chloride. Environ. Sci. & Technol., 35(22):4562-4568.
[9] US EPA (US Environmental Protection Agency), 1988. National Pollutant Discharge Elimination System. Code of Federal Regulations 40, Part 122. US Government Printing Office, Washington, DC.
[10] Weber, E.J., 1996. Iron-mediated reductive transformations: investigation of reaction mechanism. Environ. Sci. & Technol., 30(2):716-719.
[11] Xu, X.H., Zhou, H.Y., Wang, D.H., 2003. Catalytic dechlorination of chlorobenzene in water by Pd/Fe system. Chin. Chem. Lett., 14(7):700-703.
[12] Xu, X.H., Liu, Y., Wei, J.J., Wang, D.H., 2004. Catalytic dechlorination and influencing factors of 2,4-DCP by nanoscale Pd/Fe bimetallic system. Chin. J. Catal., 25:138-142 (in Chinese).
Open peer comments: Debate/Discuss/Question/Opinion
<1>