[Reductive dechlorination of atrazine by Ni/Fe bimetallic particles].
Dechlorination of atrazine under acidic conditions was studied by using Fe and Ni/Fe bimetallic particles respectively for the confirmation of the catalytic role of Ni/Fe. Effect of pH value, Ni/Fe proportion and dosage of metal powder were discussed as well. The results indicated that Ni/Fe bimetallic particles was very effective for dechlorination of atrazine, with the dechlorination efficiencies above 90% by using 1.22% (W/W) Ni/Fe at pH value of 2.0 in 30 minutes, very superior to Fe particle with the dechlorination efficiencies only 22.21% in 90 minutes under the same conditions. By the comparison of the surface morphology of both Fe and Ni/Fe and experimental results, catalytic mechanism of Ni/Fe bimetallic particles was also proposed.
Institute of Environmental Science, Zhejiang University, Hangzhou 310029, China.
Hong
H
Wei
Ke-bin
KB
Li
Shao-ping
SP
Tong
Wei-ping
WP
Liu
D001280:Atrazine / Q000737:chemistry*; D002384:Catalysis; D017606:Chlorine Compounds / Q000737:chemistry; D004787:Environmental Pollution / Q000517:prevention & control*; D006540:Herbicides / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*
D017606:Chlorine Compounds; D006540:Herbicides; D009532:Nickel; D007501:Iron; D001280:Atrazine