PMID- 17966860 OWN - NLM STAT- MEDLINE DCOM- 20080124 LR - 20190911 IS - 1001-0742 (Print) IS - 1001-0742 (Linking) VI - 19 IP - 8 DP - 2007 TI - Degradation of 2,4-dichlorophenol with a novel TiO2/Ti-Fe-graphite felt photoelectrocatalytic oxidation process. PG - 1020-4 AB - Degradation of 2,4-dichlorophenol (2,4-DCP) was studied in a novel three-electrode photoelectrocatalytic (PEC) integrative oxidation process, and the factors influencing the degradation rate, such as applied current, flow speed of O2, pH, adscititious voltage and initial 2,4-DCP concentration were investigated and optimized. H2O2 was produced nearby cathode and Fe2+ continuously generated from Fe anode in solution when current and O2 were applied, so, main reactions, H2O2-assisted TiO2 PEC oxidation and E-Fenton reaction, occurred during degradation of 2,4-DCP in this integrative system. The degradation ratio of 2,4-DCP was 93% in this integrative oxidation process, while it was only 31% in E-Fenton process and 46% in H2O2-assisted TiO2 PEC process. So, it revealed that the degradation of 2,4-DCP was improved greatly by photoelectrical cooperation effect. By the investigation of pH, it showed that this integrative process could work well in a wide pH range from pH 3 to pH 9. FAU - Zhao, Bao-xiu AU - Zhao BX AD - School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. zhaobaoxiuhit@163.com FAU - Li, Xiang-zhong AU - Li XZ FAU - Wang, Peng AU - Wang P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Environ Sci (China) JT - Journal of environmental sciences (China) JID - 100967627 RN - 0 (Chlorophenols) RN - 0 (Water Pollutants, Chemical) RN - 15FIX9V2JP (titanium dioxide) RN - 7782-42-5 (Graphite) RN - BBX060AN9V (Hydrogen Peroxide) RN - D1JT611TNE (Titanium) RN - E1UOL152H7 (Iron) RN - R669TG1950 (2,4-dichlorophenol) RN - S88TT14065 (Oxygen) SB - IM MH - Catalysis MH - Chlorophenols/*chemistry/*radiation effects MH - Electrochemistry MH - Graphite/*chemistry MH - Hydrogen Peroxide/chemistry MH - Hydrogen-Ion Concentration MH - Iron/*chemistry MH - Oxidation-Reduction MH - Oxygen/chemistry MH - Photochemistry MH - Titanium/*chemistry MH - *Ultraviolet Rays MH - Water Pollutants, Chemical/chemistry/radiation effects MH - Water Purification/methods EDAT- 2007/10/31 09:00 MHDA- 2008/01/25 09:00 CRDT- 2007/10/31 09:00 PHST- 2007/10/31 09:00 [pubmed] PHST- 2008/01/25 09:00 [medline] PHST- 2007/10/31 09:00 [entrez] AID - 10.1016/s1001-0742(07)60165-x [doi] PST - ppublish SO - J Environ Sci (China). 2007;19(8):1020-4. doi: 10.1016/s1001-0742(07)60165-x.