葛兴彬;王振虹;郭楚奇;孙馨;李铁龙;王薇;

• 1:南开大学环境科学与工程学院/天津市城市生态环境修复与污染防治重点实验室
• 2:教育部环境污染过程与基准重点实验室/天津市生物质类固废资源化技术工程中心
• 3:天津理工大学环境科学与安全工程学院

摘要(Abstract)：

纳米零价铁(n ZVI)由于其比表面积大、表面反应活性高以及强还原性,可以作为一种高效的环境修复材料,广泛运用于污染地下水及土壤修复。大量的n ZVI颗粒直接注射到污染位点会增加生态系统的暴露可能性,并且由于n ZVI粒径特别小,能穿过细胞膜和生物体的各类天然屏障,对环境及生态系统存在潜在风险,因此科学家们开始更多地关注n ZVI的生物安全性研究。鉴于n ZVI在环境修复应用中的巨大潜力和可能的毒性效应,对n ZVI环境风险的研究也显得尤为重要。综述了近几年国内外关于n ZVI生态毒性的研究成果,n ZVI对病毒、细菌、微生物群落、以及动植物等都能导致一定的负面效应,尽管其毒性机制尚不明确,但普遍认为n ZVI暴露后铁离子的释放和氧化损伤确实可以引起生物效应,部分研究还分析了环境因素和表面改性对其毒性的影响。文章对其未来的发展方向进行了展望,以期为今后纳米零价铁的研究提供参考。

关键词(KeyWords)： 纳米零价铁;生态毒性;氧化损伤;毒性机制;影响因素

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.41173102;31200396);; 天津市科技计划项目(No.12ZCZDSF01400);; 天津理工大学教学改革项目(YB11-26);; 天津市自然科学基金(No.14JCQNJC08500);; 海洋公益性项目(201005026-05)

作者(Author): 葛兴彬;王振虹;郭楚奇;孙馨;李铁龙;王薇;

Email:

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