PMID- 31814072 OWN - NLM STAT- MEDLINE DCOM- 20200303 LR - 20200303 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 27 IP - 1 DP - 2020 Jan TI - CeCu composite oxide for chlorophenol effective removal by heterogeneous catalytic wet peroxide oxidation. PG - 846-860 LID - 10.1007/s11356-019-07042-5 [doi] AB - CeCu solid solution oxide catalysts were prepared by the complex method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), and X-ray photoelectron spectroscopy (XPS). And its activity in the catalytic wet peroxide oxidation (CWPO) of 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) in water was investigated. The results showed that the Cu(2+) ions dissolved into the CeO(2) lattice to form CeCu solid solution oxide with a coarse, interconnected, porous, and cotton-like morphology. The metal-oxygen bonds were weakened by the formation of solid solution in the CeCu oxide catalyst. This weakening facilitated the activation and decomposition of the H(2)O(2) to form highly oxidative HO. species that can lead to significant chlorophenol mineralization. The formation of CeCu solid solution oxide can effectively inhibit the Cu ions to be leached from the used CeCu oxide catalysts, which can ensure the CeCu oxide catalysts to adapt to a wide pH range of 2.1-7.9 and exhibit good reusability. CWPO reaction of 4-CP and 2,4-DCP molecules on CeCu oxide catalysts conforms to the first-order kinetic equation: y = 6959.3x - 17.2 and y = 9725x - 25.4, respectively. And the reaction activation energies are 57.8 and 80.8 kJ/mol, respectively. The TOC removals of 4-CP and 2,4-DCP can exceed 88 and 82%, and the dechlorination rates of 4-CP and 2,4-DCP are higher than 95 and 99.5%, respectively. FAU - Xie, Hongmei AU - Xie H AD - Chongqing Key Laboratory of Catalysis & Environmental New Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China. FAU - Zeng, Jia AU - Zeng J AD - Chongqing Key Laboratory of Catalysis & Environmental New Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China. FAU - Zhou, Guilin AU - Zhou G AD - Chongqing Key Laboratory of Catalysis & Environmental New Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China. dicpglzhou@ctbu.edu.cn. AD - Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing, 400067, China. dicpglzhou@ctbu.edu.cn. LA - eng PT - Journal Article DEP - 20191208 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Chlorophenols) RN - 0 (Oxides) RN - 0 (Peroxides) RN - 3DLC36A01X (4-chlorophenol) RN - BBX060AN9V (Hydrogen Peroxide) SB - IM MH - Catalysis MH - Chlorophenols/*chemistry MH - Halogenation MH - Hydrogen Peroxide/chemistry MH - Microscopy, Electron, Scanning MH - *Models, Chemical MH - Oxidation-Reduction MH - Oxides MH - Peroxides/chemistry MH - X-Ray Diffraction OTO - NOTNLM OT - 2,4-Dichlorophenol OT - 4-Chlorophenol OT - Catalytic wet peroxide oxidation (CWPO) OT - CeCu oxide catalyst OT - Solid solution OT - Waste water EDAT- 2019/12/10 06:00 MHDA- 2020/03/04 06:00 CRDT- 2019/12/10 06:00 PHST- 2019/07/23 00:00 [received] PHST- 2019/11/12 00:00 [accepted] PHST- 2019/12/10 06:00 [pubmed] PHST- 2020/03/04 06:00 [medline] PHST- 2019/12/10 06:00 [entrez] AID - 10.1007/s11356-019-07042-5 [pii] AID - 10.1007/s11356-019-07042-5 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2020 Jan;27(1):846-860. doi: 10.1007/s11356-019-07042-5. Epub 2019 Dec 8.