TY - JOUR
T1 - In situ zeolite Na-X coating on glass fibers by soft solution process
AU - Okada, Kiyoshi
AU - Kuboyama, Ken Ichi
AU - Takei, Takahiro
AU - Kameshima, Yoshikazu
AU - Yasumori, Atsuo
AU - Yoshimura, Masahiro
N1 - Funding Information:
A part of this study was financially supported by the Japan Society for the Promotion of Science (Project: Preparation of Advanced Inorganic Materials by Soft Solution Processing). The authors are grateful to Nichias Co. for supplying the glass fibers used in this study, and also to Dr. K.J.D. MacKenzie of The New Zealand Institute for Industrial Research Development for critical editing of the manuscript.
PY - 2000/5
Y1 - 2000/5
N2 - A soft-solution process for in situ coating of faujasite type zeolite crystals on glass fibers was investigated. Commercial SiO2-Al2O3 glass fibers (SA fiber) and SiO2 glass fibers (SO fiber) were reacted at 60-150°C for various times with NaOH solutions containing NaCl as a mineralizer. The surface of glass fibers was initially leached by the solution but after a certain time crystals of faujasite type zeolite precipitated on the fibers. Eventually the fiber surface was completely coated because of an increase in the concentrations of Si and Al in the solution due to dissolution of the fibers, especially the SO fibers. The important experimental parameters for formation of faujasite type zeolite were found to be the mixing ratio of SA fiber/SO fiber, the reaction time, NaOH concentration and the amount of added NaCl. The lattice constant of the resulting faujasite type zeolite identified it as zeolite Na-X with a Si/Al ratio of 1.28. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - A soft-solution process for in situ coating of faujasite type zeolite crystals on glass fibers was investigated. Commercial SiO2-Al2O3 glass fibers (SA fiber) and SiO2 glass fibers (SO fiber) were reacted at 60-150°C for various times with NaOH solutions containing NaCl as a mineralizer. The surface of glass fibers was initially leached by the solution but after a certain time crystals of faujasite type zeolite precipitated on the fibers. Eventually the fiber surface was completely coated because of an increase in the concentrations of Si and Al in the solution due to dissolution of the fibers, especially the SO fibers. The important experimental parameters for formation of faujasite type zeolite were found to be the mixing ratio of SA fiber/SO fiber, the reaction time, NaOH concentration and the amount of added NaCl. The lattice constant of the resulting faujasite type zeolite identified it as zeolite Na-X with a Si/Al ratio of 1.28. (C) 2000 Elsevier Science B.V. All rights reserved.
KW - Coating
KW - Glass fiber
KW - In situ reaction
KW - Soft solution process
KW - Zeolite Na-X
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U2 - 10.1016/S1387-1811(99)00198-5
DO - 10.1016/S1387-1811(99)00198-5
M3 - Article
AN - SCOPUS:0034039393
VL - 37
SP - 99
EP - 105
JO - Microporous Materials
JF - Microporous Materials
SN - 1387-1811
IS - 1-2
ER -