Synthesis of submicron silicalite-1 crystals from clear solutions

Date

2000-01-01

Author

Kalıpçılar, Halil

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Discrete and monodisperse submicron crystals of silicalite-l with a mean size of 0.3 mum were synthesized from clear crystallization solutions. The effects of silica content, alkalinity of batch and the nature of silica source on the product yield, crystal morphology and particle size distribution were investigated. The crystal shape was sphere-like or hexagonal twinned disks when silicic acid was the silica source. Change of silica source to sodium silicate solution leads to the formation of rounded-edged-hexahedron crystals. Silica content of batch does not influence crystal morphology. Alkalinity of clear crystallization solution has a strong effect both on the particle size distribution and yield of product. Increase of alkalinity caused bimodal particle size distribution and decrease of yield.

Subject Keywords

General Materials Science, General Chemistry, Condensed Matter Physics

URI

https://hdl.handle.net/11511/37694

Journal

CRYSTAL RESEARCH AND TECHNOLOGY

DOI

https://doi.org/10.1002/1521-4079(200008)35:8<933::aid-crat933>3.0.co;2-i

Collections

Department of Chemical Engineering, Article

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Citation Formats

H. Kalıpçılar, “Synthesis of submicron silicalite-1 crystals from clear solutions,” CRYSTAL RESEARCH AND TECHNOLOGY, pp. 933–942, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37694.