Effect of surfactants on the degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea by Nanoscale Zerovalent Iron
Nanoscale zerovalent iron has been proved to be effective in the degradation of environmental pollutants and exhibited its advantage in the removal of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea (CCU), one of phenylurea pesticides, introduced in China. Present study was focused on the effect of surfactants in the degradation procedure with nanoscale zero valent iron in order to provide a simple and rapid removal method for CCU. The experimental results demonstrated that the degradation rate increased sharply with the presence of anionic sodium deodecyl sulfate (SDS) in the first 15 minutes up to 99.97％ with addition of 0.01gL-1 SDS, and the presence of Triton X-100, Tween 80 and Tween 20 led to a slight enhancement of the degradation of CCU. The promotion strength of them was followed as Tween 20, Triton X-100 and Tween 80. All these findings also showed that the function of surfactants in the degradation of pollutants was determined by the characteristics of the pollutants and the surfactants as well as the degradation mechanism.
Zhou Q X Lin H Y Xiao J P
School of Chemistry and Environmental Sciences,Henan Normal University,Henan Key Laboratory for Envi Department of Chemistry,University of Science and Technology Beijing,Beijing 100083,China
国际会议
北京
英文
1-3
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）