纳米零价铁还原溴代阻燃剂的进展研究

Research Progress of Brominated Flame Retardant Reduced by Nanoscale Zero-Valent Iron

地表水、地下水和土壤污染是当今社会人类生存面临的主要问题。由于溴代阻燃剂的广泛应用以及它们的难降解性、毒性和蓄积性等特性,成为水体和土壤的严重污染源。纳米零价铁比表面积大、还原性强、价格低廉且毒性小,通过零价铁有效还原转化来降低溴代阻燃剂的毒性是一项有前景的环境修复技术。对纳米零价铁的制备、改性和环境应用进行了介绍,系统探讨了纳米零价铁还原溴代阻燃剂的研究成果和现状,并对其发展前景进行了展望。

Contamination of surface water,groundwater and soil pollution has contatiuted the main threaten to the survival of humanbeings.Brominated flame retardant have been widely found in aquifers,soils or sediments,based on their extensive application,as well as their refractory,toxicic and accumulative characteristics.The nanoscale zero-valent iron（nZVI） is an environmental friendly reducing compound with the large surface area,strong reducing ability and low-cost.It is regarded as one promising technology for effective reduction of brominated flame retardant.The preparation and chemical modification,as well as environmental application of nZVI were systematically introduced.The current research process on reduction of brominated flame retardant using nanometer zero-valent iron as well as the prospect of its development is extensively discussed.