环境响应型纳米粒子在不互溶两相间的相转移

纳米粒子在不互溶两相间的相转移在催化剂的循环利用、药物输送等领域发挥着重要的作用。环境响应性纳米粒子因兼具纳米粒子的优点和刺激响应的特性而受到了广泛的关注。环境响应型纳米粒子相转移的出现使相转移过程更为高效、可逆且智能化,已展现出了广阔的应用前景。本文综述了近年来环境响应型纳米粒子在不互溶两相间转移的研究进展,主要内容包括pH、CO2、温度、光照、离子强度、配体交换和离子交换等刺激诱导的纳米粒子的相转移及其在催化、反应分离耦合等方面的应用,并分析了在环境刺激过程中纳米粒子的界面效应、自组装行为以及溶剂化效应等对相转移过程起到的关键性作用;同时,对目前该领域所面临的主要问题和进一步的研究工作提出了建议。

Phase Transfer of Environmental Responsive Nanoparticles between Two Immiscible Liquid Phases

Phase-transfer processes of nanoparticles between two immiscible liquid phases play an important role in many aspects such as recycling of catalysts, drug delivery and preparation of nanoparticles. Environmental responsive nanoparticles have been widely developed because of their advantages of nanoparticles and stimuli-responsive properties. The phase transfer of environmental responsive nanoparticles makes the phase transfer process more efficient, reversible and intelligent, which has shown a broad application prospect. In this paper, the recent progress in the phase transfer of environmental responsive nanoparticles between two immiscible phases is reviewed. The main contents include the phase transfer of nanoparticles triggered by stimuli such as pH, CO₂, temperature, light, ionic strength, ligand exchange and ionic exchange, and their applications in sustainable catalysis and reaction separation coupling. The key influence of interface effect and self-assembly behavior of nanoparticles and solvation effect on the phase transfer process is analyzed. At the same time, the main problems and further research work in this field are proposed.