炭载纳米尖晶石锰铁氧体复合材料同步去除水体中PPCPs/重金属的效能与机理

项目名称： 炭载纳米尖晶石锰铁氧体复合材料同步去除水体中PPCPs/重金属的效能与机理

项目编号： No.51478449

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 其他

项目作者： 付明来

作者单位： 中国科学院城市环境研究所

项目金额： 84万元

中文摘要： 针对水体PPCPs和重金属复合污染问题，开展炭载纳米尖晶石锰铁氧体（CNSMF）复合材料同步去除水中PPCPs和重金属的研究，采用溶剂/水热法或共沉淀法合成CNSMF复合材料，利用复合材料的高吸附性同步去除水中PPCPs和重金属。将从微观层面上深入探究合成CNSMF复合材料的最佳工艺条件和机理，实现CNSMF的可控制备；研究影响CNSMF同步去除水中PPCPs和重金属效能的主要环境条件和工艺条件；揭示能充分反映各影响因素作用下的同步去除动力学规律与机理；探索实现CNSMF再生利用与PPCPs和重金属回收的有效方法；构建出一种高效、经济、安全且资源化程度高的CNSMF同步去除水中PPCPs和重金属的技术工艺与原理，为锰铁氧体基纳米功能材料同时去除水中PPCPs和重金属的理论发展和实际工程应用提供科学依据与技术支撑。

中文关键词： 水污染控制；PPCPs；重金属；纳米复合材料；尖晶石锰铁氧体

英文摘要： In the past decade, great attentions have been focused on the issue of combined pollution of pharmaceuticals and personal care products (PPCPs) and heavy metal ions in surface/groundwater because of its evidence-based risks to aquatic life and human health and the lack of cost-effective and appropriate remediation techniques for removing such combined pollutants. To this end, a worthwhile study aimed at exploring and implementing an integrative technique centered on coremoval and subsequent recycle of PPCPs and heavy metals from waters using carbon supported nano-spinel manganese ferrite (CNSMF) hybrids is featured and conducted in this research program. The primary goal of this research is to develop a simple and straightforward strategy to synthesize less-aggregated and well-dispersed CNSMF while simultaneously improving its coremoval efficacy. Herein, active carbon, graphene, active carbon fibers, and carbon nanotubes are selected as models of carbon supporters to electrostatically, sterically, or electrosterically stabilize and disperse NSMF during the solvo(hydro)thermal or co-precipitation processes. Coremoval practices of PPCPs and heavy metals by CNSMF and NSMF are first presented, along with the influences of varying synthetic conditions on the dispersity and stability of NSMF and the removal of target combined pollutants, which are to be taken into account for optimizing synthesis procedures of CNSMF hybrids. Impacts of single environmental factor and its multiple ones on performance of CNSMF toward PPCPs and heavy metals are also systematically examined. Subsequently, the mechanisms for coremoval of PPCPs and heavy metals by CNSMF under differing conditions and its corresponding kinetic models are probed. Lastly, regenerating practices of used CNSMF hybrids are performed to assess the cost effectivity, manipuility and safety of integrative technique exhibited in this proposal. Research findings from this project are expected to open an avenue to exploring NSMF-related nano-remediation techniques to address the challenges associated with the combined pollution of PPCPs and heavy metals.

英文关键词： water pollution control;PPCPs;heavy metals;nanocomposites;SMF