Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage
作者: Yong SunMengbin GuShuguang LyuMark L. BrusseauMing LiYanchen LyuYunfei XueZhaofu QiuQian Sui
作者单位: 1State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
2Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
3Soil, Water and Environmental Science Department, School of Earth and Environmental Sciences, The University of Arizona, 429 Shantz Building, Tucson, AZ 85721, United States
刊名: Journal of Hazardous Materials, 2020, Vol.392
来源数据库: Elsevier Journal
DOI: 10.1016/j.jhazmat.2020.122328
关键词: FeS@nZVI-rGOOxidationCatalysisTrichloroetheneGroundwater remediation
原始语种摘要: Abstract(#br)The performance of trichloroethene (TCE) removal was initially investigated in sodium persulfate (SPS) or potassium monopersulfate triple salt (PMS) oxidative environment by reduced graphene oxide (rGO) supported nZVI (nZVI-rGO) catalyst and further the role of sulphur by anchoring nano FeS on nZVI-rGO (FeS@nZVI-rGO) was evaluated. The high usage of oxidants and stability of FeS@nZVI-rGO catalyst were significantly improved due to the insoluble nature of this innovative catalyst by involvement of nano FeS which limited the rapid iron loss caused by the corrosion of active sites and mitigated rapid oxidants decomposition in FeS@nZVI-rGO/SPS and FeS@nZVI-rGO/PMS systems. The tests for target contaminant removal showed that over 95 % TCE could be removed at 100 mg L −1...
全文获取路径: Elsevier  (合作)
影响因子:3.925 (2012)

  • catalyst 催化剂
  • supported 支承的
  • removal 消去
  • oxide 氧化物
  • remediation 矫正
  • decomposition 分解
  • anchoring 系泊
  • glyph 符号
  • reduced 减缩的
  • insoluble 不溶的