采用Box-Behnken实验设计研究超声和微波辅助老化对合成纳米SAPO-34分子筛的影响

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Pub Date : 2016-05-03 DOI:10.1080/15533174.2014.988827

H. S. Pajaie, M. Taghizadeh

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引用次数: 3

摘要

采用超声和微波辅助时效法制备了纳米SAPO-34。采用BET、XRD、FE-SEM等技术对合成样品进行了表征。采用基于Box-Behnken统计设计的响应面法(RSM)，研究了微波(MW)、超声波(US)时效时间和水热时间对SAPO-34制备过程中最终产物相结晶度的影响。结果表明，US和MW时效时间的相互作用对结晶度有主要的积极影响，在显著缩短的时间内完成结晶。

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Investigating the Effect of Ultrasonic and Microwave-Assisted Aging on the Synthesis of Nanosized SAPO-34 Molecular Sieves Using Box–Behnken Experimental Design

Nanosized SAPO-34 was synthesized by means of ultrasonic and microwave-assisted aging process. Synthesized samples were characterized by BET, XRD, and FE-SEM techniques. Applying the response surface methodology (RSM) based on Box–Behnken statistical design, the effects of microwave (MW), ultrasonic (US) aging time, and hydrothermal time on the preparation of SAPO-34 with respect to crystallinity of final product phase were investigated. The results showed that the interaction between US and MW aging time had the main positive effect on the crystallinity and the crystallization was accomplished in a significantly reduced time.

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来源期刊

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 工程技术-纳米科技

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审稿时长

5 months