New Applications of Zeolitic Materials Beyond the Traditional Uses
作者单位：State Key Lab of Inorganic Synthesis and Preparation Chemistry Jilin University
会议名称：《中国化学会第九届全国无机化学学术会议》
会议日期：2015年
学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
关 键 词：Zeolites Oil–water separation Proton conductivity Luminescence Photochromism
摘 要：Zeolites are an interesting class of inorganic crystalline microporous materials constructed by corner-sharing of TO4（T = Si, Al, P, etc.） tetrahedra.1,2 These materials have wide applications as catalysts and adsorbents in petroleum refining, petrochemical industry, and fine chemical industry. Recently, zeolites have emerged as advanced functional materials with unusual properties beyond their traditional uses. They are involved in various processes of current interest, such as luminescence, electricity, magnetism, medicine, and microelectronic, etc. In this presentation, we will introduce new applications of zeolitic materials in the aspects of wettability, ion/proton conduction, photo/thermochromism, quantum dots, etc. Taking advantage of the excellent chemical, thermal and mechanical stability of zeolite materials, we have demonstrated zeolite-coated mesh films for gravity-driven oil–water separation, and high separation efficiency of various oils can be achieved based on the excellent superhydrophilicity and underwater superoleophobicity of the zeolite surface;3 By utilization of in-situ generated methyl viologen（MV） cations as templates, photochromism/thermochromism zeolitic materials in responsive to different spectral range have been prepared;4-6 By introducing Na+ ions instead of organic species as templates, we have synthesized aluminophosphate-based zeolitic materials in the organotemplate free system and unusual ion/proton conduction properties have been observed due to existence of the Na+ ions and high amount of water molecules in the channels;7-9 Through the pyrolysis of the organic templates confined in zeolites and Na OH treatment, N-doped carbogenic nanodots with tunable full- color emission and high quantum yields have been obtained.10 The new properties shown above will promise more exciting advances in the application of zeolite materials.