Fe3O4-Au@PANI三元复合材料的合成与性能研究

来源 :第十五届胶体与界面化学会议 | 被引量 : 0次 | 上传用户:wangshilei19850715
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目前,同时具有导电性、光学性和磁性的多功能纳米粒子由于其在药物靶向传递、生物传感、细胞分离、催化等方面的潜在应用得到了广泛的关注[1,2].金具有独特的光学和电学特性以及良好的催化能力,导电聚合物具有优良的导电性与化学环境稳定性.将金内嵌于导电聚合物中不仅可以起到保护作用,同时对金的光、电性质不会造成损失甚至起到一定的促进作用.而Fe3O4 的引入可进一步提高材料的循环稳定性.我们以水溶性较好的Fe3O4 为磁性基体,以SiO2 为牺牲模板,通过金种的嫁接和聚苯胺的原位包裹合成了蛋黄-蛋壳结构Fe3O4-Au@PANI 三元复合材料.相比没有聚苯胺保护的Fe3O4@SiO2-Au 样品,此材料在催化硼氢化钠还原对硝基苯酚的反应中表现出良好的催化活性和稳定性.
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