Effects of low-temperature gel aging on the synthesis of zeolite Y at different alkalinities

H. Jülide Köroǧlu, Alper Sarioǧlan, Melkon Tatlier, Ayşe Erdem-Şenatalar*, Ö Tunç Savaşçi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

The effects of low-temperature gel aging on the synthesis of zeolite Y were investigated. The variations occurring in the crystal sizes and size distribution as well as in the crystallinity and Si/Al ratio of the solid zeolite samples with aging time were determined for two different aging temperatures and two gel compositions in which the alkalinity was varied. It was determined that both the crystal sizes and the span of the size distribution may be decreased further by aging the gel at temperatures below room temperature. The alkalinity of the gel composition seemed to play a significant role in determining the magnitude of the effects of lowering the aging temperature on crystal sizes and the size distributions of the aged zeolite samples. The Si/Al ratio of zeolite Y was enhanced when the lower aging temperature and the less alkaline gel composition were used.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalJournal of Crystal Growth
Volume241
Issue number4
DOIs
Publication statusPublished - Jun 2002
Externally publishedYes

Funding

This work was carried out as part of a project sponsored by NATO's Scientific Affairs Division in the framework of the Science for Peace Programme.

FundersFunder number
North Atlantic Treaty Organization

    Keywords

    • A1. Aging
    • A1. Nucleation
    • A2. Hydrothermal crystal growth
    • B1. Zeolites

    Fingerprint

    Dive into the research topics of 'Effects of low-temperature gel aging on the synthesis of zeolite Y at different alkalinities'. Together they form a unique fingerprint.

    Cite this