羧酸盐柱[5]芳烃功能化银纳米粒子的制备及其对有机染料催化降解性能分析  

Study on Preparation of Silver Nanoparticles Functionalized by Carboxylated Pillar[5]arene and Catalytic Degradation Activity toward Organic Dyes

作　　者：张郡童 陶欣 杨云汉 陈艳 杨明坤 杨举 杨丽 杨丽娟 ZHANG Jun-Tong;TAO Xin;YANG Yun-Han;CHEN Yan;YANG Ming-Kun;YANG Ju;YANG Li;YANG Li-Juan(Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province,National and Local Joint Engineering Center for Green Preparation Technology of Bio-based Materials,School of Chemistry&Environment,Yunnan Minzu University,Kunming 650500,China)

机构地区：[1]云南民族大学化学与环境学院,生物基材料绿色制备技术国家地方联合工程中心,云南省高校智能超分子化学重点实验室,昆明650500

出　　处：《分析化学》2024年第4期513-522,共10页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金项目(No.21762051);云南省兴滇英才支持计划项目(教学名师);云南省教育厅科学研究基金项目(No.2023Y0519)资助。

摘　　要：制备了羧酸盐柱[5]芳烃(Carboxylated pillar[5]arene,CP5A)功能化的银纳米粒子(CP5A-Ag NPs)。采用紫外-可见吸收光谱(UV-Vis)、傅里叶变换红外吸收光谱(FT-IR)和透射电镜(TEM)等对CP5A-AgNPs进行了表征。TEM结果表明,当CP5A与AgNO_(3)的摩尔比为1∶10时,制备的CP5A-AgNPs分散性好、粒径均一,平均粒径为4.05 nm。CP5A-AgNPs对两种不同类型染料罗丹明B(RhB)和甲基橙(MO)的催化降解率分别为99.91%和98.83%,并且具有较好的循环催化能力,第5次催化效率分别为91.06%和98.45%。比较了CP5A对应的单体化合物(Carboxylated monomer arene,CMA)作为稳定剂时所制备的CMA-AgNPs的性能。结果表明,CP5A功能化的AgNPs具备更好的分散性、稳定性和催化性能,不仅对RhB和MO具有较强的催化降解能力,而且循环催化能力良好。Carboxylated pillar[5]arene functionalized silver nanoparticles(CP5A-AgNPs)were successfully prepared by Creighton method.The prepared CP5A-AgNPs composites were characterized by ultraviolet-visible absorption spectroscopy(UV-Vis),infrared spectroscopy(FT-IR)and transmission electron microscopy(TEM),etc.TEM results showed that when the molar ratio of CP5A to AgNO3 was 1:10,the prepared CP5A-AgNPs had good dispersion and uniform particle size,with an average particle size of 4.05 nm.The catalytic degradation ability of CP5A-AgNPs toward two kinds of organic dyes,Rhodamine B(RhB)and methyl orange(MO)was further investigated.The results showed that the degradation rates of these two dyes by CP5A-AgNPs were 99.91%and98.83%respectively,and CP5A-AgNPs exhibited good cyclic catalytic ability.The catalytic efficiencies in the fifth cycle were 91.06%and 98.45%,respectively.In addition,the performance of functionalized silver nanoparticles using monomer compound of CP5(CMA)as stabilizer(CMA-Ag NPs)was compared.The results showed that CP5AAgNPs had strong catalytic degradation activity to RhB and MO,and had good recycling catalytic ability.

关 键 词：芳烃 银纳米粒子 催化降解 有机染料 

分 类 号：O643.36[理学—物理化学] X703[理学—化学]