微纳米氢键有机骨架材料的可控制备及应用探索

Porous Hydrogen-bonded Organic Frameworks (HOFs) have received extensive attent due to their high specific surface area, porosity and tunable structures, but there is no report on the synthesis and application of micro / nano scale HOF materials. This paper aims at preparing highly uniform nano- or micro-sized functional HOFs with tunable morphologies, taking advantage of the advanced experimental conditions, and fully characterizing of the materials. Meanwhile, the potential applications in the fields of gas storage and separation, sensor and biomedical utilization will be investigated. This research will try to provide a general approach to prepare highly mono-dispersed nano- or micro-sized HOFs. More importantly, we can extend this synthetic strategy and methodic versatility for further development and synthesis of novel functional HOFs. It has important academic significance to promote the integration of chemistry, biology, environment and other fields.

多孔氢键有机骨架材料(HOFs)由于具有高的比表面积、多孔性、低密度和结构可调控等优势，引起科学家们的广泛关注。但是对于微纳米尺寸HOFs材料的合成与应用研究还没有报道。本课题旨在以现有工作为基础，通过恰当的合成条件，制备尺寸均一、形貌可控的微纳米HOFs，并对该材料进行全面的系统表征，同时探索其在气体分离与存储、荧光标识以及分子识别等领域中的应用。该项目旨在提供一种通用的、简单实用的制备微纳米HOFs的方法，为合成更多新型功能性的微纳米HOFs提供理论基础和经验规律，对于促进化学、生物和能源等领域的综合交叉和有机融合有着重要的学术意义。

本青年基金(基金号21601177)执行三年来，按照项目申请书的计划，开展了氢键有机骨架材料合成及在环境污染治理中的应用研究。成功地制备了几种具有较好吸附性能的氢键有机骨架材料以及氢键共价有机聚合物材料，由于其构筑单体含有大量的氢键活性位点有利于增强污染物和材料之间的相互作用，因此，所制备的多孔材料显示出优良的吸附性能和易回收并可重复使用的性能。并详细阐明了氢键在骨架构筑以及功能应用中的角色和机制，实现了材料的可控制备到功能靶向。截至目前，在项目的直接支持下，共发表学术论文12篇，申请专利7项，完成了申请书的计划任务。