水溶性柱[5]芳烃合成金纳米颗粒及其催化性能研究

Synthesis of Au nanoparticle based on water-soluble pillar[5]arene and its catalytic application

金纳米颗粒具有光电特性优异、易被修饰的特点,在催化和传感方面有独特的作用。柱芳烃作为新一代超分子大环化合物,自2008年被发现以来备受青睐。通过实验合成了一种含双羟基的水溶性柱[5]芳烃(HP5),在NaOH环境中不加任何还原剂的情况下可获得金纳米颗粒,制备的金纳米颗粒粒径较小,约为5nm,而且分散性较好,也不发生团聚。制备的金纳米颗粒在催化还原对硝基苯酚(4-NP)和催化降解亚甲基蓝(MB)时,均表现出较强的催化活性。本研究为制备绿色多功能化金纳米颗粒提供了一条新的途径。

Gold(Au)nanoparticles have excellent photoelectric properties and easy to be modified,and they have a unique role in catalysis and sensing.As a new class of supramolecular macrocyclic compound,pillar[n]arenes have been popular in scientific research since they were reported in 2008.A water-soluble pillar[5]arene with dihydroxyl groups was synthesized.Au nanoparticles can be obtained in NaOH solution at room temperature without any reducing agents.The size of the prepared Au nanoparticles was approximate 5 nm.And its dispersibility was better,and there will be no agglomeration.The prepared Au nanoparticles were applied to the catalytic reduction of 4-nitrophenol(4-NP)and the catalytic degradation of methylene blue(MB),and both showed strong catalytic activity.This project provided a new strategy for the green preparation of multifunctional Au nanoparticles.