摘要
以不锈钢金属网为载体,采用预涂晶种的二次生长法,在水热条件下制备了连续、无明显缺陷的X型分子筛膜.考察了反应物中水的含量、碱度、硅铝比和反应时间等制备条件对形成X型分子筛膜的影响,优化了X型分子筛膜的制备条件,利用扫描电子显微镜(SEM)对不同反应条件下制备的X型分子筛膜的形貌进行了观察,并对结果进行了分析.
The preparation of X-type zeolite membrane was studied in the hydrothermal conditions.A secondary growth method with the pre-seed step was used by choosing the stainless steel net as the support.Different reaction conditions were adjusted for the preparation of X-type zeolite membrane,such as the quantity of water,alkalinity,Si/Al ratio and the reaction time.Scanning electron microscopy technique was employed to observe the morphology of X-type zeolite membranes.Finally,the best synthesis conditions were found after the comparison and analysis of these results,X-type zeolite membranes with better morphology and without obvious defects were prepared.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2011年第10期2250-2255,共6页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20831002)资助
关键词
X型分子筛膜
水热制备
硅铝比
X-Type zeolite membrane
Hydrothermal preparation
Si/Al ratio
