Exfoliation of a Coordination Polymer Based on a Linear π-Conjugated Ligand into an Ultrathin Nanosheet for Glyphosate Sensing
作者:Qianyu Guo、Xiudu Zhang、Yanshang Kang、Yonghong Ni
DOI:10.1021/acs.inorgchem.3c03652
日期:2024.2.12
development of sensing materials for pesticides has attracted considerable attention in recent years. In this work, a novel Cd(II)-based coordination polymer (CP) with the formula [Cd(H2O)2(L)]·DMF (Cd-1, DMF = N,N-dimethylformamide, H2L = 4,4′-[(2,5-dimethoxy-1,4-phenylene)di-2,1-ethenediyl]bis-benzoic acid) was synthesized under solvothermal conditions. Structural analysis revealed that coordination between
由于农药的大量消耗及其对环境和人类健康的潜在威胁,农药传感材料的开发近年来引起了人们的广泛关注。在这项工作中,一种新型的Cd(II)基配位聚合物(CP),其分子式为[Cd(H 2 O) 2 (L)]·DMF ( Cd-1 , DMF = N , N-二甲基甲酰胺,H 2 L = 4,4'-[(2,5-二甲氧基-1,4-亚苯基)二-2,1-乙烯基]双苯甲酸)在溶剂热条件下合成。结构分析表明,中心Cd 2+阳离子与配体L 2-之间的配位形成了二维(2D)网络,并通过非共价氢键进一步组装成三维(3D)超分子框架。通过在异丙醇中进行超声波处理, Cd-1被剥离,得到厚度小于1.8 nm的超薄CP基2D纳米片( Cd-1-NS )。与块状材料相比,所制备的Cd-1-NS对水中的草甘膦(Glyph)表现出增强的荧光发射性能和优异的传感性能,具有高选择性、灵敏性、抗干扰性、快速响应性和良好的可关闭性。影响。