典型有机磷酸酯类化合物与粘土矿物间的界面作用机制及尺寸效应研究

项目名称： 典型有机磷酸酯类化合物与粘土矿物间的界面作用机制及尺寸效应研究

项目编号： No.21507036

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 化学工业

项目作者： 徐怀洲

作者单位： 生态环境部南京环境科学研究所

项目金额： 22万元

中文摘要： 有机磷酸酯（organophosphate esters, OPEs）是一类重要的阻燃剂和塑化剂，在使用中极易释放到周围环境中，对环境和人体健康造成潜在危害。OPEs在环境中的污染现状、迁移转化以及风险评价已逐渐成为研究者们关注的焦点。目前，针对OPEs与环境介质之间的界面作用研究尚处于初始阶段。粘土矿物作为土壤的主要组分之一，是重要的环境介质。本项目拟通过具有不同物化性质的OPEs与具有不同结构特性、不同粒径的粘土矿物之间的界面作用研究，辅以相互补充的粘土结构微观结构表征、形貌分析手段，阐明OPEs与粘土矿物之间的界面作用微观机制及尺寸效应成因。该研究将为更加准确地预测OPEs的环境归趋以及更深入地理解粘土矿物与有机物之间的作用机制提供科学依据和新技术方法。

中文关键词： 有机磷酸酯；有机污染物；粘土矿物；界面作用；尺寸效应

英文摘要： Organophosphate ester is an important group of flame retardant and plasticizer. It is easy to be released into the surrounding environment in the process of using, posing potential risks to the environment and human health. The pollution situation, migration and transformation, and risk assessment of organophosphate esters have gradually become the focus of researchers. At present, interface interaction study between organophosphate esters and environmental mediums is still in an initial stage. Clay minerals as one of main soil components are an important environmental medium. To address scientific questions in the interface interaction between organophosphate ester and clay minerals, typical organophosphate esters with different physicochemical properties, typical clay minerals with varied structure and multiple particle size ranges are chosen to conduct interface interaction mechanism study. Complementary techniques will be employed to qualitatively and quantitatively characterize the structure and morphology of clay minerals. Eventually, the microscope interface interaction mechanisms and the origins of size effect will be revealed. The outcome of this project will provide fundamental knowledge and novel technologies for better assessing the environmental fate of organophosphate esters and better understanding the interaction mechanisms of clay minerals and organics.

英文关键词： Organic phosphate ester;Organic contaminants;Clay minerals;Interface interaction;Size effect