DOI: 10.1016/j.watres.2018.11.077
Scopus记录号: 2-s2.0-85057583268
论文题名: Electrochemical oxidation and advanced oxidation processes using a 3D hexagonal Co 3 O 4 array anode for 4-nitrophenol decomposition coupled with simultaneous CO 2 conversion to liquid fuels via a flower-like CuO cathode
作者: Zou J.-P. ; Chen Y. ; Liu S.-S. ; Xing Q.-J. ; Dong W.-H. ; Luo X.-B. ; Dai W.-L. ; Xiao X. ; Luo J.-M. ; Crittenden J.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 330
结束页码: 339
语种: 英语
英文关键词: Advanced oxidation processes
; CO 2 reduction
; Electrooxidation
; Electroreduction
; Organic pollutants
; Sulfate radical
Scopus关键词: Anodes
; Carbon dioxide
; Catalyst selectivity
; Cathodes
; Copper oxides
; Electrocatalysis
; Electrochemical oxidation
; Electrolytic reduction
; Electrooxidation
; Ethanol fuels
; Liquid fuels
; Liquids
; Methanol fuels
; Organic pollutants
; Sulfur compounds
; Urea
; Advanced oxidation process
; Advanced Oxidation Processes
; CO2 reduction
; Electro reduction
; Electrocatalytic process
; Electrocatalytic reduction
; Electrocatalytic system
; Sulfate radicals
; Catalytic oxidation
; 4 nitrophenol
; carbon dioxide
; cuprous ion
; methanol
; nitrogen
; urea
; array
; carbon dioxide
; decomposition analysis
; electrochemical method
; electrode
; experimental study
; liquid
; organic pollutant
; oxidation
; phenol
; radical
; reduction
; sulfate
; three-dimensional modeling
; Article
; catalyst
; chemical bond
; comparative study
; controlled study
; decomposition
; electrochemical analysis
; energy consumption
; liquid chromatography-mass spectrometry
; oxidation
; pH
; priority journal
; scanning electron microscopy
; surface area
; surface property
; X ray diffraction
英文摘要: A novel electrocatalytic system was developed to realize one-pot conversion of organic pollutants into liquid fuels such as methanol (CH 3 OH) and ethanol (C 2 H 5 OH). The process combines the catalytic oxidation of organic pollutants with electrocatalytic reduction of CO 2 . We first coupled the electrocatalytic process with SO 4 •− -based advanced oxidation processes (AOPs) for the degradation of 4-nitrophenol (4-NP) using a 3D-hexagonal Co 3 O 4 anode. In this step, 4-NP was mineralized to CO 2 , and then the CO 2 was converted to CH 3 OH and C 2 H 5 OH by electrocatalytic reduction using a flower-like CuO cathode. The experimental results show the destruction of 4-NP (60 mL, 10 mg/L) can be as high as 99%. In addition, the yields of CH 3 OH and C 2 H 5 OH were 98.29 μmol/L and 40.95 μmol/L, respectively, which represents a conversion of 41.8% of 4-NP into liquid fuels; the electron efficiency was 73.1%. In addition, we found that 3D-hexagonal arrays of Co 3 O 4 with different morphologies can be obtained by adding different amounts of urea. We also investigated the formation mechanism of novel 3D-hexagonal Co 3 O 4 arrays for the first time. A mechanism was proposed to explain the electrocatalytic steps involved in the conversion of 4-NP to CH 3 OH and C 2 H 5 OH and the synergetic effects between AOPs and electrocatalysis. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122097
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, China; Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
Recommended Citation:
Zou J.-P.,Chen Y.,Liu S.-S.,et al. Electrochemical oxidation and advanced oxidation processes using a 3D hexagonal Co 3 O 4 array anode for 4-nitrophenol decomposition coupled with simultaneous CO 2 conversion to liquid fuels via a flower-like CuO cathode[J]. Water Research,2019-01-01