纳米棒
沸石
结晶
化学工程
材料科学
热液循环
水热合成
Crystal(编程语言)
纳米技术
晶体生长
产量(工程)
钾
催化作用
化学
有机化学
结晶学
复合材料
冶金
程序设计语言
工程类
计算机科学
作者
Shanshan He,Yanxin Wang,Chao Yang,Yong Li,Zhaoxin Zhou,Xike Tian
标识
DOI:10.1016/j.micromeso.2016.01.022
摘要
A novelty hierarchical hollow nitrate cancrinite zeolite microspheres (HNCMs) with micro-plate crystals act as sphere shell and wrapped with large number of nanorods crystal in the center of the microspheres were synthesized by a simple organic-free hydrothermal synthesis methods. With the adjustment of potassium cation concentration in synthetic system, nitrate cancrinite zeolites realize morphology tunable architectures from nanorod to HNCMs. A systematic investigation of the crystal growth over different crystallization stages indicates a stepwise crystallization progress of HNCMs. First, the primitive nitrate cancrinite nanoplatelets self assembled to yield solid spherical clusters. Then the spherical clusters undergo a surface to core crystallization progress which was supposed to be the reason for the formation of hollow cores. This work provides an alternative strategy for the synthesis of spherical hollow zeolite materials with tunable architectures, which may potentially be used in the field of separation, catalysis and biomedicine.
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