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沸石分子筛是一类带有规则微孔结构的硅铝酸盐晶体,因其骨架具有独特的电子给受能力而备受关注.由此,许多以微孔分子筛为主体的电子转移体系被构建并深入研究.与溶液相中自由基的快速衰减不同,产生于微孔分子筛内部的自由基受其纳米孔道的限制,具有有限的迁移率和较长的寿命,有助于人们利用传统光谱技术确定反应机理.本文主要对当前微孔分子筛主-客体复合体系中的电子转移过程和机制的研究现状加以论述.
Zeolite zeolites are a class of aluminosilicate crystals with a regular microporous structure, attracting much attention due to their unique electron-accepting ability of the framework. Thus, many electron-transfer systems dominated by microporous molecular sieves have been constructed In addition to the rapid decay of free radicals in the solution phase, the free radicals generated within the microporous molecular sieve are limited by their nanopore channels and have limited mobility and long life, helping people to determine using traditional spectroscopic techniques Reaction mechanism.This paper mainly discusses the current research on the electron transfer process and mechanism in host-guest composite system of microporous molecular sieves.