PMID- 17267103
OWN - NLM
STAT- MEDLINE
DCOM- 20071227
LR  - 20121115
IS  - 0304-3894 (Print)
IS  - 0304-3894 (Linking)
VI  - 147
IP  - 1-2
DP  - 2007 Aug 17
TI  - Degradation of 2,4-dichlorophenol in aqueous solution by a hybrid oxidation 
      process.
PG  - 281-7
AB  - A hybrid photoelectroreaction system has been developed in this study, which 
      consists of three functional electrodes: a TiO2/Ti sheet as the anode, a steel 
      (Fe) sheet as another anode in parallel and a piece of graphite felt (GF) as the 
      cathode. While an electrical current is applied between the Fe anode and GF 
      cathode and UV light is irradiated on the surface of TiO2/Ti anode, both of 
      E-Fenton reaction and photoelectrocatalytic (PEC) reaction are involved 
      simultaneously. The integration of E-Fenton and PEC reactions was evaluated in 
      terms of 2,4-dichlorophenol (2,4-DCP) degradation in aqueous solution. In the 
      meantime, the current distribution between two anodes and pH influence on the 
      2,4-DCP degradation were studied and optimized. Experimental results confirmed 
      that 2,4-DCP in aqueous solution was successfully degraded by 93% and mineralized 
      by 78% within 60 min in such a hybrid oxidation process. When a current intensity 
      of 3.2 mA was applied, the current efficiency for H2O2 generation on the GF 
      cathode was determined to be 61%. Furthermore, the experiments demonstrated that 
      combination of E-Fenton reaction with photocatalytic reaction let the process be 
      less pH sensitive and would be more favorable to water and wastewater treatment 
      in practice.
FAU - Li, X Z
AU  - Li XZ
AD  - Department of Civil and Structural Engineering, The Hong Kong Polytechnic 
      University, Hong Kong, China. cexzli@polyu.edu.hk
FAU - Zhao, B X
AU  - Zhao BX
FAU - Wang, P
AU  - Wang P
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070108
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chlorophenols)
RN  - 0 (Water Pollutants, Chemical)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Chlorophenols/*chemistry
MH  - *Electrochemistry/instrumentation/methods
MH  - Electrodes
MH  - Equipment Design
MH  - Hydrogen-Ion Concentration
MH  - *Photochemistry/instrumentation/methods
MH  - Ultraviolet Rays
MH  - Waste Disposal, Fluid/*methods
MH  - Water Pollutants, Chemical/chemistry
MH  - Water Purification/*methods
EDAT- 2007/02/03 09:00
MHDA- 2007/12/28 09:00
CRDT- 2007/02/03 09:00
PHST- 2006/06/08 00:00 [received]
PHST- 2006/10/23 00:00 [revised]
PHST- 2006/12/31 00:00 [accepted]
PHST- 2007/02/03 09:00 [pubmed]
PHST- 2007/12/28 09:00 [medline]
PHST- 2007/02/03 09:00 [entrez]
AID - S0304-3894(07)00024-6 [pii]
AID - 10.1016/j.jhazmat.2006.12.077 [doi]
PST - ppublish
SO  - J Hazard Mater. 2007 Aug 17;147(1-2):281-7. doi: 10.1016/j.jhazmat.2006.12.077. 
      Epub 2007 Jan 8.