微波诱导仿生矿化制备手性多孔HA及其吸附特性研究

Chirality is the basis for life, and chiral materials show unique properties shuch as optical, electrical, magnetic and adsorption properties, and attract much attention. Microwave and chirality exists intrinsic relations, but the effects of microwave field on assembly, transformation of chiral materials have not been in-depth studied. The project focuses on construction of new chiral material in microwave field, adsorption structure-activity relationship and degradation strengthening law. Using amino acid, protein as biological template, chiral porous hydroxyapatite(HA) will be prepared using microwave-induced biomimetic mineralization. The influence rules of mineralization conditions on the chiral character will be in-dep studied; By structural characterization, simulation and adsorption analysis, the relationship between the chiral HA and its adsorption properties(adsorption capacity, rate, selectivity, et al) of polychlorinated biphenyls(PCBs) will be investigated; Based on antibiotics existing degradation mechanism, stereoscopic structure change of PCBs, degradation behavior and strengthening law in the HA under microwave field will be revealed, then the theory and method of strengthening degradation PCBs will be established.The results will provide important theoretical basis and practical guidance for studying the relationship between microwave field and construction and transformation of the chiral structures of materials, and the results also provide a new way for effectively eliminating PCBs residues in aquatic environment.

手性是一切生命的基础，手性材料具有独特的性能而成为研究热点。微波与手性存在内在关系，微波场对手性组装、传递及演变规律还未被深入研究。本项目以微波场下新型手性材料构建-吸附构效关系-降解强化规律为研究主线。以氨基酸，蛋白质为不同结构层次的生物模板，采用微波诱导仿生矿化制备手性多孔羟基磷灰石（HA），深入研究微波仿生矿化条件对其手性特征的影响规律；采用结构表征、模拟及吸附分析相关联的方法，研究HA对手性多氯联苯（PCBs）类持久性有机污染物吸附性能（容量、速率、选择性等）间的内在关系；基于PCBs现有降解机理，通过揭示微波场作用下PCBs在手性HA上的立体结构转变、降解行为及强化规律，建立微波场强化降解PCBs的方法和理论。结果将为研究微波场与无机矿物材料手性构建、手性有机物立构演变间的关系提供重要的理论依据，并为我国高效消除环境中持久性有机污染物残留探索一条新途径，具有重要的研究价值。

手性材料具有独特的性能而成为研究热点。微波场对手性组装、传递及演变规律还未被深入研究。本项目采用不同结构层次的生物模板，采用微波水热法制备了一系列的多孔羟基磷灰石（HA）及复合材料，研究了材料制备条件对其结构特征及表面电位的影响规律；采用结构表征、模拟及吸附分析相关联的方法，研究了多孔HA材料对污染物吸附性能的影响规律。结果表明，本项目所制备的NCC/HAPs材料对盐酸金霉素抗生素具有较快的吸附速率和较高的吸附容量。研究结果将为研究微波场与材料手性结构构建、演变间的关系提供重要的理论依据和实践指导，并为我国高效消除水环境中污染物残留探索一条新途径。相关研究结果发表学术论文48篇，SCI25篇，EI10篇。培养硕士研究生11名，博士生1名。