| 离子热法合成多级孔CuAPO-5分子筛 |
| Ionothermal Synthesis of Hierarchical Structured CuAPO-5 Molecular Sieve |
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| 摘要: 采用丁二酸、氯化胆碱与四乙基溴化铵三元低共熔体为溶剂和模板剂,借助微波辐射快速合成了具有多级孔结构的CuAPO-5分子筛.系统地考察了P2O5/Al2O3、HF/Al2O3与CuO/Al2O3的物质量之比,铝源及铜源对CuAPO-5分子筛合成的影响.利用X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)和N2物理吸脱附等检测手段对合成产物的结晶度、形貌和孔结构等进行了表征.通过SEM可知在一定的条件下,可得到具有六角纳米盘状特殊形貌的CuAPO-5分子筛.N2物理吸脱附、SEM和TEM分析表明该分子筛是一种同时存在微孔和介孔的多级孔磷酸铝分子筛材料. |
| 关键词: 离子热合成 CuAPO-5 多级孔 低共熔混合物 |
| 基金项目: 国家自然科学基金(No.21306072),红柳青年(No.201113)资助项目 |
| Abstract: Hierarchical structured CuAPO-5 molecular sieve has been ionothermally synthesized by microwave irradiation and using eutectic mixture based on succinic acid, choline chloride and tetraethyl ammonium bromide as solvent and template. The effects of the ratio of P2O5/Al2O3, HF/Al2O3 and CuO/Al2O3, aluminum and copper sources on the crystallization of CuAPO-5 were systematically investigated. The resulting CuAPO-5 molecular sieve was characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscopy (TEM), and N2 physical adsorption-desorption, respectively. SEM analysis reveals that CuAPO-5 molecular sieve with hexagonal nanometer-disc morphology can be synthesized under specific synthesis conditions. N2 physisorption, SEM and TEM characterizations show that the resultant material is one kind of hierarchical structured aluminophosphate molecular sieve possesses both micropore and mesopore. |
| Keywords: ionothermal synthesis CuAPO-5 hierarchical structured eutectic mixture |
| 投稿时间：2014-05-12 修订日期：2014-10-06 |
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| 赵新红,问娟娟,陈静,赵江波,祁永东,李贵贤.离子热法合成多级孔CuAPO-5分子筛[J].无机化学学报,2015,31(1):29-36. |
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