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气相转移法制备ZnAPO-34分子筛膜
引用本文:曾昌凤,张利雄,王焕庭,徐南平.气相转移法制备ZnAPO-34分子筛膜[J].高等学校化学学报,2004,25(2):204-207.
作者姓名:曾昌凤  张利雄  王焕庭  徐南平
作者单位:1. 南京工业大学机械与动力工程学院; 2. 南京工业大学化学化工学院, 南京 210009; 3. 香港大学化学系, 香港
基金项目:国家自然科学基金 (批准号 :2 0 14 10 0 3和 2 0 2 0 10 0 7)资助
摘    要:采用气相转移法在致密氧化铝陶瓷片上制备了ZnAPO-34薄膜,并用XRD和SEM对其进行了表征.结果发现,合成配方中水的含量对ZnAPO-34粉末和膜的晶体大小和形貌有很大的影响,而且对成功制备连续的ZnAPO-34膜至关重要.在固相配比为n(P2O5);n(Al2O3);n(ZnO);n(H2O)=1;0.8;0.4;150,液相为1;75(摩尔比)的三乙胺-水溶液中,于170℃反应24h的条件下,经重复合成可得到连续无缺陷的ZnAPO-34分子筛膜.

关 键 词:分子筛膜  气相转移法  ZnAPO-34膜  
文章编号:0251-0790(2004)02-0204-04
收稿时间:2003-06-02

Synthesis of ZnAPO-34 Films by Vapor-phase Transport Method
ZENG Chang-Feng ,ZHANG Li-Xiong ,WANG Huan-Ting ,XU Nan-Ping.Synthesis of ZnAPO-34 Films by Vapor-phase Transport Method[J].Chemical Research In Chinese Universities,2004,25(2):204-207.
Authors:ZENG Chang-Feng  ZHANG Li-Xiong  WANG Huan-Ting  XU Nan-Ping
Institution:1. College of Mechanic and Dynamic Engineering; 2. College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China; 3. Department of Chemistry, Hong Kong University, Hong Kong, China
Abstract:ZnAPO-34 films on dense alumina plates were synthesized by the vapor-phase transport(VPT) method. XRD and SEM were used to examine the powders and films. The water content in the synthesis had a strong influence on the crystal sizes and the morphology of ZnAPO-34 powders and films, and played a critical role on the successful preparation of a uniform ZnAPO-34 film. The optimum VPT synthesis was conducted at 170 ℃ for 24 h with the gel prepared as a composition of n(P2O5);n(Al2O3);n(ZnO);n(H2O)=1;0.8;0.4 ;150 and the liquid phase composed of triethylamine and water n(triethylamine);n(H2O)=1;75]. Repeated synthesis cycles were necessary to obtain a continuous and uniform ZnAPO-34 film.
Keywords:Molecular sieve film  Vapor-phase transport method  ZnAPO-34 film
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