Big World in the Small Space: Constructing Hollow Zeolite Microspheres Using a Sustainable Template,Crystal Growth & Design

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Big World in the Small Space: Constructing Hollow Zeolite Microspheres Using a Sustainable Template
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-08-25 00:00:00 , DOI: 10.1021/acs.cgd.7b00850
Meng Pan ₁ , Jiajun Zheng ₁ , Yujian Liu ₂ , Qinglan Kong ₁ , Huiping Tian ₂ , Ruifeng Li ₁

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Hollow zeolite microspheres have attracted considerable interest due to their unique properties and great potential applications. In this work, we report a simple and cost-effective approach for constructing hollow zeolite microspheres based on a biomass-derived template, i.e., carboxymethylcellulose sodium (CMC). As an example, a hollow ZSM-5 microsphere with a hollow core smaller than 1 μm in diameter and a complete crystal shell is synthesized. This approach overcomes most of the limitations associated with the existing methods, such as complex operations and costly spherical templates. By studying the growth process in detail, a possible formation mechanism is proposed. The crystallization of the hollow zeolite microsphere is through a “surface to core” process, in which the interaction between the CMC and the zeolite gel and the decomposition of the polymer network play the critical roles.

中文翻译：

小空间里的大世界：使用可持续模板构造空心沸石微球

空心沸石微球由于其独特的性能和巨大的潜在应用而引起了人们的极大兴趣。在这项工作中，我们报告了一种基于生物质衍生的模板即羧甲基纤维素钠（CMC）构建空心沸石微球的简单且经济高效的方法。作为示例，合成了具有小于1μm的直径的中空核并且完整的晶体壳的中空ZSM-5微球。这种方法克服了与现有方法相关的大多数限制，例如复杂的操作和昂贵的球形模板。通过详细研究生长过程，提出了可能的形成机理。中空沸石微球的结晶是通过“从表面到核心”的过程，

更新日期：2017-08-25

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