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CLC number: X131.2; X703

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Received: 2006-02-24

Revision Accepted: 2006-04-29

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Journal of Zhejiang University SCIENCE B 2006 Vol.7 No.7 P.548~552

http://doi.org/10.1631/jzus.2006.B0548


Structure relationship of nitrochlorobenzene catalytic degradation process in water over palladium-iron bimetallic catalyst


Author(s):  NIU Shao-feng, ZHOU Hong-yi, AO Xu-ping, XU Xin-hua, LOU Zhang-hua

Affiliation(s):  Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   xhxu@hzcnc.com

Key Words:  Pd/Fe, Catalytic degradation, Structure, NCBs


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.

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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.

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Reference

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