Enhanced catalytic degradation process of o-nitrochlorobenzene by palladium-catalyzed fe0 particles.
Over Pd/Fe bimetallic catalyst, o-nitrochlorobenzene (o-NCB), at a concentration of 20 mg/L in aqueous solutions, is rapidly converted to o-chloroaniline (o-CAN) first, and then quickly dechlorinated to aniline(AN) and Cl-, without other intermediate reaction products. The aminated and dechlorinated reactions are believed to take place on the surface site of the Pd/Fe. The o-NCB removal efficiency and the next dechlorination rate increase with an increase of bulk loading of palladium and catalysts addition due to the increase of both the surface loading of palladium and the total surface area. These results indicate that reduction, amination and dechlorination of o-NCB by palladium-catalyzed Fe0 particles, can be designed for remediation of contaminated groundwater.
Xu
Xin-hua
XH
Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China. xhxu@hzcnc.com
Zhou
Hong-yi
HY
Zhou
Mi
M
Wang
Da-hui
DH
D002384:Catalysis; D002851:Chromatography, High Pressure Liquid; D007501:Iron / Q000737:chemistry*; D009578:Nitrobenzenes / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
D009578:Nitrobenzenes; D010165:Palladium; C032785:2-chloronitrobenzene; D007501:Iron