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      https://www.ias.ac.in/article/fulltext/boms/034/04/0755-0758

    • Keywords

       

      Zeolite beta; zeolite ZSM-5; nonionic emulsion system; particle size; crystal transformation.

    • Abstract

       

      Zeolite beta synthesis was first carried out in a newly developed emulsion system containing nonionic polyoxyethylated alkylphenol surfactant, which showed interesting non-conventional features. Compared to the conventional hydrothermal synthesis of zeolite beta, the reported nonionic emulsion system showed a faster nucleation rate. Furthermore, the emulsion system could stabilize the beta product and retarded its further transformation to ZSM-5 even under the high crystallization temperature at 453 K. Additionally, the beta particle size could be tuned by the adoption of different lengths of alkyl chain in the surfactant and cosurfactant. Control experiments showed each emulsion component played a crucial role in the zeolite beta growth. The approach proposed in this paper might be extended to apply for the syntheses of other types of zeolites with particle size under control.

    • Author Affiliations

       

      Yuguo Shen1 Ying Zhang1 Chao Jin1 Ying Cao1 Wei Gao1 Lishan Cui2

      1. Department of Materials Science and Engineering, China University of Petroleum, 18 Fuxue Road, Changping District, Beijing 102249, China
      2. The State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Changping District, Beijing 102249, China
    • Dates

       
  • Bulletin of Materials Science | News

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