Rapid and continuous hydrothermal synthesis of zeolite membranes by microwave heating

在无机材料中，沸石是一种很有前途的高性能膜材料。我们已经报道了沸石膜的渗透汽化性能是最有利的。在这里，我们报告的水热合成沸石A，Y和ZSM-5膜使用微波加热和它们的渗透汽化性能。考察了微波辐射时间、温度、起始凝胶摩尔比、老化、种子包衣等工艺参数对膜渗透汽化性能的影响。微波加热法是一种制备均相无针孔沸石膜的新方法，有望在不久的将来实现沸石膜组件的大规模生产

Among inorganic materials zeolite is a promising candidate for a high performance membrane. We have reported the performance of zeolitic membranes is the most favorable one for pervaporation. Here, we report on the hydrothermal synthesis of zeolite A, Y and ZSM-5 membranes using a microwave heating and their pervaporation properties. Synthetic parameters such as the microwave radiation time, temperature, molar ratio of the starting gel, aging, and seed coating were investigated in order to optimize the pervaporation performance of the membrane. Microwave heating offers a new synthetic method of a homogeneous and pinhole-free zeolitic membrane and seems to be suitable for the mass production of zeolitic membrane module in the near future