Continuous-flow Synthesis of Submicron and Nano-zeolites in Capillary Microchannel Reactor

doi:10.3724/SP.J.1077.2011.01304

Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (12): 1304-1308.DOI: 10.3724/SP.J.1077.2011.01304

• Research Paper • Previous Articles Next Articles

Continuous-flow Synthesis of Submicron and Nano-zeolites in Capillary Microchannel Reactor

LV Jing, ZHANG Guang-Cai, MA Qiang-Zhi, LIU Hai-Ou, ZHANG Xiong-Fu, QIU Jie-Shan

(State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China)

Received:2011-01-14 Revised:2011-03-11 Published:2011-12-20 Online:2011-11-11
About author:LV Jing. E-mail: lvjing-218@163.com
Supported by:
Universities Science & Research Project of Liaoning Province Education Department (2009S019); Program for Liaoning Excellent Talents in University (LR201008); National University Student Innovation Test Plan (2009025)

Abstract

Abstract: Continuous synthesis of NaA and Silicalite-1 submicron and nanoparticles was prepared in a capillary microchannel reactor from clear solutions. The X-ray diffraction (XRD), Transmission Electron Microscope (TEM) and Dynamic Light Scatter(DLS) measurements were used to investigate the effects of different synthesis parameters on the particle size distribution and morphology, including reaction temperature, aging time and residence time. It was indicated that smaller mean particle size and narrower particle size distribution of the products was obtained with lower reaction temperature, longer aging time and shorter residence time during the synthesis process. At the synthesis temperature of 343K, aging time of 72h and residence time of 5.8h, the NaA zeolite crystal with mean particle size of about 100nm was prepared. And at the synthesis temperature of 371K, aging time of 24h and residence time of 10h, the Silicalite-1 zeolite crystal with mean particle size of around 80nm was obtained. The present method offers a novel route for preparing submicro and nano zeolite particles.

Key words: microreactor, continuous-flow synthesis, molecular sieve, nanomaterial, zeolite

CLC Number:

TQ110
O64

LV Jing, ZHANG Guang-Cai, MA Qiang-Zhi, LIU Hai-Ou, ZHANG Xiong-Fu, QIU Jie-Shan. Continuous-flow Synthesis of Submicron and Nano-zeolites in Capillary Microchannel Reactor[J]. Journal of Inorganic Materials, 2011, 26(12): 1304-1308.

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Continuous-flow Synthesis of Submicron and Nano-zeolites in Capillary Microchannel Reactor

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