浙江大学学报A（英文版）
浙江大學學報A（英文版）
절강대학학보A（영문판）
JOURNAL OF ZHEJIANG UNIVERSITY SCIENCE A
2008年
1期
118-124
,共7页
2,4-dichlorophenol (2,4-DCP),Dechlorination,Pd-Fe bimetallic nanoparticles,Humic acid (HA)
The remediation of groundwater which contains chlorinated organic compounds (COCs) by nanoscale bimetallic catalysts has received increasing interest in recent years. This report presents the dechlorination of 2,4-dichlorophenol (2,4-DCP) by Pd-Fe bimetallic nanoparticles in the presence of humic acid (HA) to investigate the feasibility of using Pd-Fe for the in situ remediation of contaminated groundwater. Our experimental results indicated that HA had an adverse effect on the dechlorination of 2,4-DCP by Pd-Fe nanoparticles. The rate constant kvalues of 2,4-DCP dechlorination were 0.017, 0.013, 0.009, 0.006 and 0.004 min-1 for HA concentrations of 0, 5, 10, 15 and 20 mg/L, respectively. The relationship between HA dosage and k values can be described as a linear model.
