多壁碳纳米管和典型环境污染物对食用植物的联合效应研究

项目名称： 多壁碳纳米管和典型环境污染物对食用植物的联合效应研究

项目编号： No.21307085

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 环境科学、安全科学

项目作者： 王莉淋

作者单位： 四川农业大学

项目金额： 25万元

中文摘要： 随着碳纳米材料在工业各领域的广泛应用，碳纳米颗粒将不可避免地进入环境。进入环境的碳纳米颗粒不但能够直接作用于环境中的生物，还可以与其他环境污染物发生相互作用，从而改变其他污染物的环境行为，如迁移性、生物有效性等。已有研究报道了一些碳纳米颗粒，如多壁碳纳米管，甚至能够进入植物细胞，所以碳纳米材料与污染物的相互作用可能给环境中的生物带来难以预见的影响。但是，目前关于碳纳米材料和环境污染物的共存情况对环境生物的影响的研究还寥寥无几。本项目拟选择有机污染物菲和重金属污染物铅为典型环境污染物，分别研究它们与不同聚集形态和官能结构的多壁碳纳米管对食用植物的联合生物效应。主要考察可能由碳纳米材料与环境污染物之间的作用引起的它们对食用植物生物效应的改变，探讨碳纳米材料、环境污染物和植物生物效应三者之间的内在联系。这项研究对进一步认识碳纳米材料的环境风险具有重要意义。

中文关键词： 碳纳米材料；环境污染物；食用植物；吸附作用；生态风险

英文摘要： Widespread applications of carbonaceous nanomterials in various industries will inevitably result in the release of a substantial amount of them into the environment. Nanoparticles, which released into the environment, will not only directly interact with environmental biologies, but also interact with other environmental pollutants resulting in great change of their environmental behaviour, such as mobility and bioavailability. It has reported that some carbon nanoparticles, such as multi-walled carbon nanotubes (MWCNTs), could even enter the cell of a plant, so the interaction between carbon nanoparticles and pollutants might lead to unpredictable boilogical effects. However, few studies have been carried out to examine the complex interactions of carbonaceous nanoparticles with co-existing environmental pollutants in complex environmental systems. Thus, this project selects organic contaminant phenanthrene and heavy metal Pb as typical environmenal pollutants, and investigates the joint effect of these environmental pollutants and MWCNTs with various morphologies and functional groups on edible plants, respectively. The study explores the boilogical effects which might be altered by the interaction between MWCNTs and pollutants, and discusses the relations among carbon nanoparticles, environmental poll

英文关键词： carbon nano-material；evironmental pollutant；edible plant；adsorption；ecological risk