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Enhancement of UV-assisted TiO2 degradation of ibuprofen using Fenton hybrid process at circumneutral pH
Chen, Meijuan1,2; Chu, Wei2; Beiyuan, Jingzi2,3; Huang, Yu4,5
2018-04-01
发表期刊CHINESE JOURNAL OF CATALYSIS
卷号39期号:4页码:701-709
文章类型Article
摘要A synergistic UV/TiO2/Fenton (PCF) process is investigated for the degradation of ibuprofen (IBP) at circumneutral pH. The IBP decay in the PCF process is much faster than that with the conventional UV, UV/H2O2, Fenton, photo-Fenton, and photocatalysis processes. The kinetics analysis showed that the IBP decay follows a two-stage pseudo-first order profile, that is, a fast IBP decay (k(1)) followed by a slow decay (k(2)). The effects of various parameters, including initial pH level, dosage of Fenton's reagent and TiO2, wavelength of UV irradiation, and initial IBP concentration, are evaluated. The optimum pH level, [Fe2+](0), [Fe2+](0)/[H2O2](0) molar ratio, and [TiO2](0) are determined to be approximately 4.22, 0.20 mmol/L, 1/40, and 1.0 g/L, respectively. The IBP decay at circumneutral pH (i.e., 6.0-8.0 for wastewater) shows the same IBP decay efficiency as that at the optimum pH of 4.22 after 30 min, which suggests that the PCF process is applicable for the treatment of wastewater in the circumneutral pH range. The lnk(1) and lnk(2) are observed to be linearly correlated to 1/pH(0), [IBP](0), [H2O2](0), [H2O2](0)/[Fe2+](0) and ln[TiO2](0). Mathematical models are therefore derived to predict the IBP decay. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词Ultraviolet Light Tio2 Fenton Ibuprofen Effect Parameter Kinetic Model
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(17)62916-4
关键词[WOS]PERSONAL CARE PRODUCTS ; WASTE-WATER ; TRANSFORMATION PRODUCTS ; AQUEOUS-SOLUTION ; PHARMACEUTICALS ; CHINA ; OXIDATION ; REMOVAL ; PPCPS ; DECOLORIZATION
收录类别SCI
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000430989300016
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5161
专题粉尘与环境研究室
作者单位1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China
2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
3.Technol & Higher Educ Inst Hong Kong, Fac Design & Environm, Ctr Sustainable Design & Environm, Hong Kong, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
5.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
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Chen, Meijuan,Chu, Wei,Beiyuan, Jingzi,et al. Enhancement of UV-assisted TiO2 degradation of ibuprofen using Fenton hybrid process at circumneutral pH[J]. CHINESE JOURNAL OF CATALYSIS,2018,39(4):701-709.
APA Chen, Meijuan,Chu, Wei,Beiyuan, Jingzi,&Huang, Yu.(2018).Enhancement of UV-assisted TiO2 degradation of ibuprofen using Fenton hybrid process at circumneutral pH.CHINESE JOURNAL OF CATALYSIS,39(4),701-709.
MLA Chen, Meijuan,et al."Enhancement of UV-assisted TiO2 degradation of ibuprofen using Fenton hybrid process at circumneutral pH".CHINESE JOURNAL OF CATALYSIS 39.4(2018):701-709.
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