基于SPME及多种技术手段探究新型功能材料对环境有机污染物的吸附行为与机理

The preparation and application of novel functional materials are the frontiers of modern scientific researches. The application of novel functional materials in environmental areas is also the important developing direction of environmental chemistry. To study the adsorption behaviors and the related mechanisms of novel functional materials to environmental organic pollutants, it is urgent to develop high efficient method to evaluate the adsorption performance of materials and the investigation system for mechanism study as well. On this account, this project will develop methods for high efficient evaluation of the adsorption behaviors of functional materials to organic pollutants based on solid-phase microextraction technique. Meanwhile, this project will synthetically utilize multiple techniques and methods to build up a complete and systematic system for studying the adsorption mechanisms of materials. At last, under the guidance of the revealed adsorption mechanisms, a series of novel functional materials with high adsorption performance will be prepared, and high sensitive analytical methods and high effective removal techniques for different organic pollutants will be developed based on these materials. This project could be beneficial to future high efficient evaluation of the adsorption performance of novel functional materials to environmental organic pollutants. And the established system for studying the structure-property relationships could provide reference and guidance for studying the relationship between the microscopic structures of novel functional materials and their adsorption performances. This project is of important research value and practical meaning.

新型功能材料的研制与应用是现代科学研究的前沿领域。研究新型功能材料在环境领域的应用也是环境化学学科的重要发展方向。而研究新型功能材料对环境有机污染物的吸附行为和相关机理问题，迫切需要发展材料吸附性能的快速评价方法和吸附机理的系统研究体系。有鉴于此，本项目拟发展基于固相微萃取技术的功能材料对环境有机污染物吸附行为的高效、快速评估方法，并综合应用多种先进技术和手段建立完整、系统的材料吸附机理研究体系。最后，以研究所获吸附机理为指导，研制出系列具有高吸附性能的新型功能材料并用于高灵敏度环境分析方法的建立和环境有机污染物的高效去除。本项目研究有利于未来高效、快速评估新型功能材料对环境有机污染物的吸附性能，所建立的构效关系研究体系也可为新型功能材料的微观结构与吸附性能关系研究提供借鉴和指导，具有重要的研究价值和实际意义。

项目组顺利完成了项目计划，主要进展包括：（1）通过调控吸附材料的组成和微观结构等，设计合成了MOFs、多孔碳、有机聚合物等多种新型吸附功能材料；（2）基于SPME技术，发展出了功能材料对环境浓度的有机污染物吸附行为的快速、高通量评估方法；（3）建立了较为系统的材料吸附机理研究体系，阐明了系列新型功能材料对有机污染物的吸附机理；（4）应用具有高吸附性能的新型功能材料，建立了多种高灵敏度环境分析方法和环境有机污染物去除方法。.另外，在保证项目既定计划的顺利执行的基础上，项目组还在研究计划外开展了前沿领域的探索，取得了积极进展：（1）发展了MOF-酶催化剂、纯有机光催化剂、金属配合物光催化剂等，并探究了这些催化剂在污染物去除、二氧化碳还原方面的应用潜力；（2）基于SPME技术，研究了微塑料、纳米塑料对有机污染物存在形态的影响，并探究了微塑料、纳米塑料和有机污染物的复合环境效应。.在项目资助下，项目组在PNAS、Chem、Nat. Commun.、JACS、Angew. Chem.、Adv. Funct. Mater.、Anal. Chem.、J. Hazard. Mater.和Chem. Commun.等期刊上共发表SCI论文80余篇、申请专利11项，超额完成项目计划。立项以来，项目组出站博士后5名，毕业博士、硕士研究生25名，其中4人入职“双一流”大学教学科研岗，超额完成了人才培养目标。