典型文献
Electro-oxidation of Ni(Ⅱ)-citrate complexes at BDD electrode and simultaneous recovery of metallic nickel by electrodeposition
文献摘要:
The simultaneous electro-oxidation of Ni(Ⅱ)-citrate and electrodeposition recovery of nickel metal were attempted in a combined electro-oxidation-electrodeposition reactor with a boron-doped diamond(BDD)anode and a polished titanium cathode.Effects of initial nickel citrate concentration,current density,initial pH,electrode spacing,electrolyte type,and ini-tial electrolyte dosage on electrochemical performance were examined.The efficiencies of Ni(Ⅱ)-citrate removal and nickel metal recovery were determined to be 100%and over 72%,respectively,under the optimized conditions(10 mA/cm2,pH 4.09,80 mmmol/L Na2SO4,initial Ni(Ⅱ)-citrate concentration of 75 mg/L,electrode spacing of 1 cm,and 180 min of electrol-ysis).Energy consumption increased with increased current density,and the energy con-sumption was 0.032 kWh/L at a current density of 10 mA/cm2(pH 6.58).The deposits at the cathode were characterized by scanning electron microscopy(SEM),energy-dispersive spectrometry(EDS),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS).These characterization results indicated that the purity of metallic nickel in cathodic de-position was over 95%.The electrochemical system exhibited a prospective approach to oxidize metal complexes and recover metallic nickel.
文献关键词:
中图分类号:
作者姓名:
Qiongfang Zhuo;Xiaofeng Xu;Shuibo Xie;Xiuwen Ren;Zhongying Chen;Bo Yang;Yanliang Li;Junfeng Niu
作者机构:
School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan 523808,China;School of Civil Engineering,University of South China,Hengyang 421001,China;South China Institute of Environmental Sciences,MEE,Guangzhou 510655,China;College of Chemistry and Environmental Engineering,Shenzhen University,Shenzhen 518071,China
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引用格式:
[1]Qiongfang Zhuo;Xiaofeng Xu;Shuibo Xie;Xiuwen Ren;Zhongying Chen;Bo Yang;Yanliang Li;Junfeng Niu-.Electro-oxidation of Ni(Ⅱ)-citrate complexes at BDD electrode and simultaneous recovery of metallic nickel by electrodeposition)[J].环境科学学报(英文版),2022(06):103-113
A类:
mmmol,electrol
B类:
Electro,oxidation,citrate,complexes,BDD,simultaneous,recovery,metallic,nickel,by,electrodeposition,were,attempted,combined,reactor,boron,doped,diamond,anode,polished,titanium,cathode,Effects,initial,concentration,current,density,spacing,electrolyte,type,dosage,electrochemical,performance,examined,efficiencies,removal,determined,be,respectively,under,optimized,conditions,mA,Na2SO4,ysis,Energy,consumption,increased,energy,was,kWh,deposits,characterized,scanning,microscopy,dispersive,spectrometry,EDS,ray,diffraction,photoelectron,spectroscopy,XPS,These,characterization,results,indicated,that,purity,cathodic,system,exhibited,prospective,approach,oxidize
AB值:
0.467049
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