PMID- 19008044
OWN - NLM
STAT- MEDLINE
DCOM- 20090707
LR  - 20141120
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 165
IP  - 1-3
DP  - 2009 Jun 15
TI  - Factors influencing the dechlorination of 2,4-dichlorophenol by Ni-Fe 
      nanoparticles in the presence of humic acid.
PG  - 78-86
LID - 10.1016/j.jhazmat.2008.09.080 [doi]
AB  - The dechlorination of 2,4-dichlorophenol (2,4-DCP) by Ni-Fe nanoparticles in the 
      presence of humic acid (HA) was investigated to understand the feasibility of 
      using Ni-Fe for the in situ remediation of contaminated groundwater. 2,4-DCP was 
      first adsorbed by Ni-Fe nanoparticles, then quickly reduced to o-chlorophenol 
      (o-CP), p-chlorophenol (p-CP), and finally to phenol (P). However, the 
      introduction of HA decreased the removal percentage of 2,4-DCP, as a result, the 
      phenol production rates dropped from 86% (in the absence of HA) to 29% within 2h. 
      Our data suggested that the dechlorination rate was dependent on a number of 
      factors including Ni-Fe availability, Ni loading percentage over Fe, temperature, 
      pH, and HA concentration. In particular, the removal percentage of 2,4-DCP was 
      determined to be 100, 99, 95, 84 and 69%, for HA concentrations of 0, 5, 10, 30 
      and 40 mg L(-1), respectively. The kinetic calculations for the dechlorination of 
      2,4-DCP indicated that k values for 2,4-DCP dechlorination dropped from 0.14, 
      0.051, 0.039, 0.021 to 0.011 min(-1) with increasing concentrations of HA from 0, 
      5, 10, 30 to 40 mg L(-1).
FAU - Zhang, Zhen
AU  - Zhang Z
AD  - Department of Environmental Engineering, Zhejiang University, Hangzhou, People's 
      Republic of China.
FAU - Cissoko, Naman
AU  - Cissoko N
FAU - Wo, Jingjing
AU  - Wo J
FAU - Xu, Xinhua
AU  - Xu X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080927
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chlorophenols)
RN  - 0 (Humic Substances)
RN  - 0 (Water Pollutants, Chemical)
RN  - 339NCG44TV (Phenol)
RN  - 7OV03QG267 (Nickel)
RN  - E1UOL152H7 (Iron)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Chlorophenols/*chemistry
MH  - Environmental Restoration and Remediation/*methods
MH  - Halogenation
MH  - *Humic Substances
MH  - Iron
MH  - Nanoparticles/*chemistry
MH  - Nickel
MH  - Phenol
MH  - Water Pollutants, Chemical/*chemistry
MH  - Water Purification/methods
EDAT- 2008/11/15 09:00
MHDA- 2009/07/08 09:00
CRDT- 2008/11/15 09:00
PHST- 2008/05/26 00:00 [received]
PHST- 2008/09/08 00:00 [revised]
PHST- 2008/09/19 00:00 [accepted]
PHST- 2008/11/15 09:00 [pubmed]
PHST- 2009/07/08 09:00 [medline]
PHST- 2008/11/15 09:00 [entrez]
AID - S0304-3894(08)01423-4 [pii]
AID - 10.1016/j.jhazmat.2008.09.080 [doi]
PST - ppublish
SO  - J Hazard Mater. 2009 Jun 15;165(1-3):78-86. doi: 10.1016/j.jhazmat.2008.09.080. 
      Epub 2008 Sep 27.