含锌磷酸硅铝分子筛的合成及表征  

Synthesis and Characterization of Silicoaluminophosphate Molecular Sieve Containing Zinc

作　　者：蔡云飞[1] 王裕耀 陈峰[1] 罗五魁[1] 

机构地区：[1]宁德师范学院化学系,福建宁德352100

出　　处：《广东化工》2015年第15期47-48,共2页Guangdong Chemical Industry

基　　金：福建省大学生创新创业训练项目(201410398035);宁德市科技局项目(20130132);福建省教育厅青年项目(JB14124);宁德师范学院服务海西项目(2013F08)

摘　　要：采用水热合成法,二乙烯三胺(DETA)为模板剂,通过调节模板剂的用量、p H、晶化温度和晶化时间,合成出含锌分子筛,得到合成原料的最佳配比为:n(P2O5)∶n(H2O)∶n(Si O2)∶n(Al2O3)∶n(Zn)∶(DETA)=0.18∶0.85∶0.15∶0.04∶0.10∶0.25,在550℃时恒温4 h,除去模板剂二乙烯三胺,并通过扫描电子显微镜(SEM)、热重(TG)及红外光谱(IR)等方法对合成的分子筛进行了表征,结果表明,合成的分子筛纯度较高,形貌为立方体,热重曲线表明所合成的分子筛具有良好的热稳定性。By adjusting the amount of template, p H value, the crystallization temperature, crystallization time, and high crystalline molecular sieve have been synthesized under the traditional hydrothermal condition, with diethylene-triamine（DETA） as the template, The optimum molar ratios of raw materials are n（P2O5）∶n（H2O）∶n（Si O2）∶n（Al2O3）∶n（Zn）∶（DETA）=0.18∶0.85∶0.15∶0.04∶0.10∶0.25, which were calcined in the muffle furnace at 550 ℃ for 4 h, Finally, silicoaluminophsphate molecular sieves were obtained. The as-synthesized molecular sieves were characterized by SEM, TG and IR. The characterization results indicated that the molecular sieves possessed high purity and crystallinity.

关 键 词：分子筛 水热合成 磷酸硅铝 表征 

分 类 号：O643.36[理学—物理化学]