微波辅助合成AFI型分子筛的形貌控制研究进展-中国材料进展

文章信息/Info

Title:: Crystal Morphology‘s Control of AFI Type Molecular Sieves by Microwave Irradiation

Author(s):: SONG Yu; TANG Yuwei; DONG Hui; YANG Wei; School of Textile and Material Engineering, Dalian Polytechnic University

摘要:: AFI型分子筛是无机微孔材料家族中重要的一员，由于其具有较好的选择性能和结构的多样化，在催化性能和吸附分离等方面具有良好的应用前景。大量的研究表明分子筛的各种性能与分子筛的尺寸和形貌有着直接的联系，同时直接影响到其实际应用效果。微波合成法具有升温速度快、加热均匀、产物粒度分布窄，以及相选择性、节能和环保等特点，因此将微波合成法引入到研究无机微孔化合物形貌的研究中，将对无机微孔材料的发展起到积极地推动作用。本课题组一直从事与分子筛相关的研究工作，近期在微波辐射条件下，通过改变合成条件成功制备出不同形貌的AFI型分子筛。详细阐述了AlPO4-5、SAPO-5、CoAPO-5、FeAPO-5、MnAPO-5、CuAPO-5和MgAPO-5合成条件的改变对产物形貌的影响。

Abstract:: AFI type molecular sieve is an important member of the families of inorganic microporous materials, due to better selectivity properties and structures diversification, it has a good application prospect in the fields of the catalytic properties and adsorption separation, and so on. A large number of studies have shown that it has a direct connection between the sizes, morphologies and the properties of the molecular sieves, at the same time the sizes and morphologies directly affect application effects of molecular sieves. Microwave synthesis have a series of advantages, for instance: fast heating, heating uniformity, narrow particle size distribution of the product, the characteristics of phase selectivity, energy saving and environmental protection. The microwave synthesis is introduced into the morphologies research of inorganic microporous compounds,as will play an important role. In this paper, AlPO4-5 molecular sieve with different morphologies is successfully prepared under the condition of microwave radiation, in addition, SAPO-5, CoAPO-5, FeAPO-5, MnAPO-5, and MgAPO-5 CuAPO-5 are successfully prepared by the same way. This paper expounds the influence of synthesis condlitions on the products’ morphologies in detail.