PMID- 23177251
OWN - NLM
STAT- MEDLINE
DCOM- 20130701
LR  - 20131121
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 244-245
DP  - 2013 Jan 15
TI  - Enhanced dechlorination of 2,4-dichlorophenol by Pd/FeFe3O4 nanocomposites.
PG  - 628-36
LID - S0304-3894(12)01068-0 [pii]
LID - 10.1016/j.jhazmat.2012.10.051 [doi]
AB  - The Pd/FeFe(3)O(4) nanocomposites showed higher dechlorination efficiency of 
      2,4-dichlorophenol (2,4-DCP) rather than bare Pd/Fe nanoparticles in the batch 
      dechlorination experiments. nFe(3)O(4) provided a convenient way to recycle the 
      nanocomposites with an external magnetic field and significantly enhanced 2,4-DCP 
      dechlorination. 2.0 g L(-1) nFe(3)O(4) was the optimal dosage in the presence of 
      3 g L(-1) Pd/Fe nanoparticles in our system, removing 76.4% 2,4-DCP within 5h in 
      the aqueous environment. This was much higher than bare Pd/Fe nanoparticles 
      (35.8%), 1.0 g L(-1) nFe(3)O(4) (58.0%) and 2.5 g L(-1) nFe(3)O(4) (66.3%) 
      employed under the same conditions. However, excessive nFe(3)O(4) (3.0 g L(-1)) 
      partially overlapped on Pd/Fe nanoparticles to obstruct their contact with 
      2,4-DCP, and then 2,4-DCP removal efficiency was dropped to 7.4%. Efficiencies of 
      dechlorination and phenol formations were increased significantly when the amount 
      of Pd increased, whereas the highest 2,4-DCP removal efficiency was observed 
      98.2% at 0.20 wt% Pd loading. Moreover, SO(4)(2-) would also inhibit the 
      dechlorination while Cu(2+), Ni(2+) and Fe(2+) enhanced the dechlorination of 
      2,4-DCP by Pd/FeFe(3)O(4) nanocomposites. The nanocomposites showed stable 
      catalytic activity, fairly good mechanic stability, and promising to recycle 
      during the process.
CI  - Copyright (c) 2012 Elsevier B.V. All rights reserved.
FAU - Xu, Jiang
AU  - Xu J
AD  - Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, 
      People's Republic of China.
FAU - Tang, Jie
AU  - Tang J
FAU - Baig, Shams Ali
AU  - Baig SA
FAU - Lv, Xiaoshu
AU  - Lv X
FAU - Xu, Xinhua
AU  - Xu X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20121102
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chlorophenols)
RN  - 0 (Magnetite Nanoparticles)
RN  - 0 (Water Pollutants, Chemical)
RN  - 4R7X1O2820 (Chlorine)
RN  - 5TWQ1V240M (Palladium)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Chlorine/chemistry
MH  - Chlorophenols/*chemistry
MH  - Magnetite Nanoparticles/*chemistry/ultrastructure
MH  - Microscopy, Electron, Scanning
MH  - Microscopy, Electron, Transmission
MH  - Nanocomposites/*chemistry/ultrastructure
MH  - Palladium/*chemistry
MH  - Recycling/methods
MH  - Water Pollutants, Chemical/*chemistry
MH  - X-Ray Diffraction
EDAT- 2012/11/28 06:00
MHDA- 2013/07/03 06:00
CRDT- 2012/11/27 06:00
PHST- 2012/07/23 00:00 [received]
PHST- 2012/10/17 00:00 [revised]
PHST- 2012/10/26 00:00 [accepted]
PHST- 2012/11/27 06:00 [entrez]
PHST- 2012/11/28 06:00 [pubmed]
PHST- 2013/07/03 06:00 [medline]
AID - S0304-3894(12)01068-0 [pii]
AID - 10.1016/j.jhazmat.2012.10.051 [doi]
PST - ppublish
SO  - J Hazard Mater. 2013 Jan 15;244-245:628-36. doi: 10.1016/j.jhazmat.2012.10.051. 
      Epub 2012 Nov 2.