新兴污染物有机磷阻燃剂（OPFRs）在水中溶解度大，在全球的水环境中普遍存在，直接危害人类健康和生物安全。国际上还没有开展吸附去除水中的OPFRs 的研究，常规吸附剂的有效性和吸附机理还不清楚。本项目拟系统研究常用吸附剂对典型OPFRs的吸附特性，弄清含磷基团在吸附中的作用，从分子水平阐明OPFRs在不同材料上的吸附机理；据此构建适合吸附去除氯代OPFRs的高效磁性三维还原氧化石墨烯（3D-rGO）材料，以期具有吸附量高、吸附速度快等特点；研究突破3D-rGO材料的再生方法，利用负载的磁性组分和石墨烯的特性，通过电芬顿、类芬顿氧化以及零价铁还原等方法，实现氯代OPFRs的完全降解、吸附材料可稳定重复使用的目标，进而提出磁性3D-rGO再生同时完全降解OPFRs的技术原理。本研究能为水中OPFRs的环境过程和污染控制提供理论和技术支持，有助于在给水和污水处理中高效去除OPFRs类微量污染物。

Organic phosphorus flame retardants (OPFRs) as emerging contaminants have high solubility in water, and they widely exist in global waters and affect the human health and biological security. Since the removal of OPFRs from waters has not been reported in the world, the efficiency of common adsorbents and their adsorption mechanism are unknown. In this study, the adsorption behavior of typical OPFRs on the conventional adsorbents will be investigated, and the role of phosphorus-containing groups will be clarified. The adsorption mechanism of OPFRs on different materials will be elucidated from the molecular level. Based on the known sorption mechanism, the efficient magnetic 3D-reduced graphene oxide (3D-rGO) will be prepared with high adsorption rate and high adsorption capacity for the chlorinated OPFRs. The regeneration of the spent 3D-rGO will be studied. According to the special property of magnetic components and graphene oxide, some techniques such as the electric Fenton and Fenton-like oxidation as well as zero-valent iron reduction will be used to completely degrade chlorinated OPFRs and fully recover the adsorbent for the stable reuse. Finally, the technical principle of magnetic 3D-rGO regeneration and complete degradation OPFRs simultaneously will be proposed. This study can provide the theoretical and technical support for the environmental process and contamination control of OPFRs in waters, helpful for the efficient removal of micro-pollutants such as OPFRs in water and wastewater treatment.