纳米零价铁的改性研究及其降解三氯乙烯的研究进展

Modification of Nano-zero-valent Iron and Its Degradation of Trichloroethylene

三氯乙烯(Trichlorethylene,TCE)是重要的有机溶剂,被广泛应用于各种生产活动中,在应用过程中的挥发泄漏等事故导致其严重污染地下水和土壤环境。纳米零价铁及含铁双金属颗粒因对三氯乙烯降解效率高,而受到国内外的广泛关注。目前该领域的研究热点是纳米零价铁的改性研究。主要包含对纳米零价铁及含铁双金属颗粒的负载改性和降解三氯乙烯过程中的影响因素。对负载改性技术存在的问题作了简要的探讨。

Trichloroethylene is an important organic solvent and is widely used in various production activities.Accidents such as volatilization during application cause serious pollution to groundwater and soil environment.Nano-zero-valent iron and iron-containing bimetallic particles have attracted extensive attention at home and abroad due to their high degradation efficiency to trichloroethylene.At present,the research hotspot in this field is the modification research of nano zero-valent iron.It mainly contains factors affecting the loading modification and degradation of trichloroethylene of nano-zero-valent iron and iron-containing bimetallic particles.The problems existing in the load modification technology are briefly discussed.