PEI-Ru@SiO_(2)-Au@Pt复合材料的制备与电化学发光性能  

Preparation of PEI-Ru@SiO_(2)-Au@Pt Composites and Electrochemical Luminescence Properties

作　　者：程高兴 王春 李桂新[1] CHENG Gaoxing;WANG Chun;LI Guixin(Xinjiang Normal University,Urumqi Xinjiang 830054,China)

机构地区：[1]新疆师范大学,新疆乌鲁木齐830054

出　　处：《当代化工》2024年第5期1026-1030,1105,共6页Contemporary Chemical Industry

基　　金：中国新疆维吾尔自治区自然科学基金项目(项目编号:2021D01A113);国家自然科学基金项目(项目编号:21665025);新疆维吾尔自治区研究生创新项目(项目编号:XJ2023G208);国家大学生创新创业训练计划项目(项目编号:S202310762016)。

摘　　要：采用化学氧化法合成了聚乙烯亚胺-联吡啶钌@二氧化硅-金@铂(PEI-Ru@SiO_(2)-Au@Pt)发光功能化纳米复合材料;构建灵敏稳定的响应界面,制备了精准高效的固相增强型电化学发光纳米复合材料。通过透射电子显微镜(TEM)、紫外-可见吸收光谱(UV-Vis)、傅里叶变换红外光谱(FTIR)、电化学阻抗谱(EIS)、循环伏安法(CV)和双电位阶跃法对合成的纳米复合材料进行了表征和性能测试。研究了PEI-Ru@SiO_(2)-Au@Pt纳米复合材料的形貌和结构以及电化学发光性能(ECL)。结果表明:PEI-Ru@SiO_(2)-Au@Pt纳米复合材料具有优异ECL性能,加入Au@Pt后,PEI-Ru@SiO_(2)-Au@Pt纳米复合材料的ECL强度是PEI-Ru@SiO_(2)的5倍。Polyethyleneimine-bipyridine ruthenium@silicon dioxide-Au@Pt(PEI-Ru@SiO_(2)-Au@Pt)luminescent functionalized nanocomposites were synthesized by chemical oxidation method;sensitive and stable responsive interfaces were constructed for the preparation of precise and efficient solid-phase enhanced electrochemical luminescent nanocomposites.The synthesized nanocomposites were characterized and tested by transmission electron microscopy(TEM),ultraviolet-visible absorption spectroscopy(UV-Vis),Fourier transform infrared spectrometer(FTIR),electrochemical impedance spectroscopy(EIS),cyclic voltammetry(CV),and two-potential step method.The morphology and structure as well as electrochemiluminescence properties(ECL)of PEI-Ru@SiO_(2)-Au@Pt nanocomposites were investigated.The results showed that the PEI-Ru@SiO_(2)-Au@Pt nanocomposites had excellent ECL properties.After the addition of Au@Pt,the strength of the ECL of the PEI-Ru@SiO_(2)-Au@Pt nanocomposites was five times higher than that of PEI-Ru@SiO_(2).

关 键 词：电化学发光 发光功能复合材料 金核铂壳 聚乙烯亚胺-联吡啶钌@二氧化硅 

分 类 号：TQ422[化学工程] O657.3[理学—分析化学]