纳米材料在土壤重金属污染修复中的应用

重金属污染土壤的修复一直是国内外环境研究者关注的重点环境问题之一.近年来，纳米材料在土壤重金属污染修复中的应用也受到了越来越多的关注.综述了主要纳米材料及其改性材料修复土壤重金属的应用、纳米材料的组合技术应用以及影响纳米材料修复土壤重金属效果的主要因素，提出了今后该领域应重点加强研发新的纳米材料，同时提高其在土壤中的扩散能力，研究从室内实验到田间实验的应用；进一步深入探讨了纳米材料在土壤中的环境行为及相关机理等，以期充分理解并进一步推动纳米材料在土壤重金属污染修复中的应用. 

Progress of Applications of Nanomaterials in Soil Heavy Metal Remediation

Soil heavy metal contamination is one of the key environmental problems around the world and the application of nanomaterials in soil heavy metal remediation has gained increasing attention in recent years. In this paper, nanomaterial/modified nanomaterial application, application of nanotechnology combined with other soil remediation technologies and main factors affecting the nanomaterials application in soil heavy metal remediation are summarized. It is suggested that new nanomaterials should be developed which feature the enhanced diffusion in soil, and fast transformation from laboratory experiments to field applications. In addition, environmental behavior of the nanomaterials and their remediation mechanism should be explored. This paper will help to fully understand and further promote the application of nanomaterials in soil heavy metal remediation.