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作 者:程倩 罗文正 罗恩明 甘立霖 李硕[1] 陈稼轩[2] CHENG Qian;LUO Wenzheng;LUO Enming;GAN Lilin;LI Shuo;CHEN Jiaxuan(College of Chemistry and Chemical Engineering,Chongqing University of Technology,Chongqing 400054,China;School of New Energy Materials and Chemistry,Leshan Normal University,Leshan 614004,China)
机构地区:[1]重庆理工大学化学化工学院,重庆巴南区400054 [2]乐山师范学院新能源材料与化学学院,四川乐山614004
出 处:《乐山师范学院学报》2024年第8期19-29,共11页Journal of Leshan Normal University
基 金:重庆市科技局自然科学基金项目“含氮杂冠醚长波长荧光G4链体探针的构建与性质研究”(CSTB2023NSCQ-MSX1089);重庆理工大学研究生创新项目“基于氮杂冠醚化合物改性聚苯乙烯交联微球/氯球的合成及其对铼的吸附”(gzlcx20223161);重庆市留学人员回国创业创新支持计划“具有高度仿病毒形态的靶向纳米凝胶基因递送系统的构建与性能研究启动”(cx2020040)。
摘 要:铼是一种极稀有分散金属,在自然界中难以独立存在且需求量较大,亟需开发高效的铼分离吸附材料。开发具有应用前景的铼吸附材料的关键在于构建特异性吸附位点,氮杂环类化合物是一类可作为金属配体的化合物,季铵化后可有效吸附铼。论文介绍了近年来以咪唑和吡啶两类氮杂环化合物作为吸附位点的材料,比较了二者的构效关系、结构设计、耐酸碱性和选择性能力,并提出了设计性能优异的铼吸附剂的建议。总体来看,这两类化合物作为铼吸附位点在耐酸碱性和选择性分离方面各具优势,但理论支撑较欠缺且评价指标不够全面。Rhenium is a fairly rare dispersed metal,which is difficult to exist independently in nature and has a large demand.Thus,it is urgent to develop efficient rhenium separation and adsorption materials.The key to develop promising rhenium adsorption materials is the construction of specific adsorption sites.Nitrogen heterocyclic compounds are a class of compounds that can be used as metal ligands and can effectively adsorb rhenium after being quaternized.Therefore,this paper mainly introduces two nitrogen heterocyclic compounds,imidazole and pyridine,which were regarded as adsorption sites of rhenium,and compares them from the aspects of structure-activity relationship,structural design,acid-base resistance and selectivity,etc.,providing guidance for the design of rhenium adsorbents with better performance.Overall,these two types of compounds as rhenium adsorption sites have advantages in acid-base resistance and selective separation,but there is a lack of corresponding theoretical support and evaluation criteria is not comprehensive enough.
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