Enhanced hydroxyl radical generation in the combined ozonation and electrolysis process using carbon nanotubes containing gas diffusion cathode
作者: Donghai WuGuanghua LuRan ZhangQiuhong LinZhenhua YanJianchao LiuYi Li
作者单位: 1Hohai University
2Harbin Institute of Technology
刊名: Environmental Science and Pollution Research, 2015, Vol.22 (20), pp.15812-15820
来源数据库: Springer Nature Journal
DOI: 10.1007/s11356-015-4783-1
关键词: Ozone-electrolysisGas diffusion cathodeCarbon nanotubesHydroxyl radicalsResponse surface methodology
原始语种摘要: Abstract(#br)Combination of ozone together with electrolysis (ozone-electrolysis) is a promising wastewater treatment technology. This work investigated the potential use of carbon nanotube (CNT)-based gas diffusion cathode (GDC) for ozone-electrolysis process employing hydroxyl radicals (·OH) production as an indicator. Compared with conventional active carbon (AC)-polytetrafluoroethylene (PTFE) and carbon black (CB)-PTFE cathodes, the production of ·OH in the coupled process was improved using CNTs-PTFE GDC. Appropriate addition of acetylene black (AB) and pore-forming agent Na2SO4 could enhance the efficiency of CNTs-PTFE GDC. The optimum GDC composition was obtained by response surface methodology (RSM) analysis and was determined as CNTs 31.2 wt%, PTFE 60.6 wt%,...
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影响因子:2.618 (2012)

  • ozonation 臭氧化
  • electrolysis 电解
  • containing 包含的
  • generation 世代
  • hydroxyl 羟基
  • carbon 
  • cathode 阴极
  • radical 
  • process 过程
  • diffusion 扩散