超分子纳米银凝胶的制备  

Preparation of Supramolecular Silver Nanoparticles Hydrogels

作　　者：乐金龙 乔波 项珊红 马彩慧 马新贤 YUE Jin-long;QIAO Bo;XIANG Shan-hong;MA Cai-hui;MA Xin-xian(College of Chemistry and Chemical Engineering,Ningxia Normal University,Ningxia Guyuan 756099,China)

机构地区：[1]宁夏师范学院化学化工学院,宁夏固原756099

出　　处：《广州化工》2020年第24期34-35,38,共3页GuangZhou Chemical Industry

基　　金：国家自然科学基金(No:21961029);宁夏回族自治区重点研发计划项目(No:2019BDE03019,2018BEG03020);宁夏自然科学基金(No:2020AAC02031);宁夏固原市科技项目(No:2019GKGY025);中科院“西部之光”人才培养计划项目(No:2017-32);宁夏师范学院教学项目(No:NJZ202006);西部一流学科建设项目(No:NXYLXK2017B11)。

摘　　要：为解决银纳米粒子在一般介质中分散稳定性较差和易于团聚的问题,现制备一种性能优异的苯并咪唑型超分子水凝胶作为稳定纳米银的优良介质。其中,AgNO 3为前驱物,所选苯并咪唑型超分子为还原剂及稳定剂。本文通过电镜观察得到分散性很好的银纳米粒子和纳米级纠缠密集的三维凝胶体;由紫外-可见光谱、X射线衍射和红外光谱表征了凝胶剂L制备银纳米粒子的成功性和作用点。In order to solve the problem of poor dispersion stability and easy agglomeration of silver nanoparticles in general media,a benzimidazole-type supramolecular hydrogel with excellent properties was prepared as an superior medium to stabilize it.Among them,AgNO 3 was the precursor,and the benzimidazole-type supramolecule was selected as reductant and stabilizer.Silver nanoparticles with good dispersion and nanoscale entangled three-dimensional gels were observed by electron microscopy.The results of UV-Vis,X-ray diffraction and infrared spectroscopy showed the success and point of action of silver nanoparticles under the action of gel agent L.

关 键 词：银纳米粒子 超分子 凝胶 制备 

分 类 号：O622.6[理学—有机化学]