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Surface Patterns by Solvent Evaporation of Colloidal Zeolite Suspension

Published online by Cambridge University Press:  21 March 2011

Huanting Wang ,
Zhengbao Wang ,
Limin Huang ,
Anupam Mitra  and
Yushan Yan
Huanting Wang
Affiliation:
Department of Chemical & Environmental Engineering, University of California Riverside, CA 92521, U. S. A.
Zhengbao Wang
Affiliation:
Department of Chemical & Environmental Engineering, University of California Riverside, CA 92521, U. S. A.
Limin Huang
Affiliation:
Department of Chemical & Environmental Engineering, University of California Riverside, CA 92521, U. S. A.
Anupam Mitra
Affiliation:
Department of Chemical & Environmental Engineering, University of California Riverside, CA 92521, U. S. A.
Yushan Yan
Affiliation:
Department of Chemical & Environmental Engineering, University of California Riverside, CA 92521, U. S. A.
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Abstract

Surface patterns of porous zeolite structures such as knotted-rope web and wrinkled honeycomb were obtained by dynamic self-assembly of zeolite nanoparticles during solvent evaporation of colloidal zeolite suspension. The study shows that extra ethanol in zeolite synthesis solution is crucial for pattern formation. The addition of ethanol helps produce zeolite nanoparticles with a specific range of particle size during the hydrothermal synthesis. It also provides uniform dynamic driving force for pattern formation during its preferential evaporation. In addition, surface patterns vary with suspension compositions. The patterned zeolite structures have a well-defined bimodal pore size distribution (i.e., 0.55 nm and 2.6 nm) with high BET surface area of 680∼750m2&/g.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 676: Symposium Y – Synthesis, Functional Properties and Applications of Nanostructures , 2001 , Y1.4
Copyright
Copyright © Materials Research Society 2001

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References

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