Jurnal Teknik Kimia dan Lingkungan
Vol. 9 No. 1 (2025): April 2025

Precipitation Method for LTA Zeolite Synthesis and Structural Characterization

Andita, Jessica Shierly (Unknown)
Putri, Amalia Eka (Unknown)
Siswati, Nana Dyah (Unknown)
Suprihatin, Suprihatin (Unknown)
Nurcholis, Fachrul (Unknown)



Article Info

Publish Date
28 Apr 2025

Abstract

The demand for large-scale industrial applications of zeolite has driven the development of synthetic zeolite as an alternative to natural zeolite, which is limited by availability and production constraints. This study investigates the synthesis of LTA (Linde Type A) zeolite using a precipitation method, focusing on the effects of stirring time and aging time on zeolite yield and crystallinity. The synthesis process involved preparing sodium aluminate and sodium silicate solutions, followed by controlled crystallization at 80°C for 8h. The resulting zeolite was analyzed using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) to determine its phase purity, morphology, and Si/Al ratio. The results showed that optimal zeolite yield (24.75%) was obtained with 3h of stirring and 24h of aging. SEM analysis confirmed the cubic morphology characteristic of LTA zeolite, while EDS analysis determined an Si/Al ratio of 1.44, classifying the product as LTA zeolite. These findings highlight the significance of controlled stirring and aging conditions in optimizing zeolite synthesis for industrial applications.

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Journal Info

Abbrev

jtkl

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

Description

JTKL editors welcome manuscripts in the form of research articles, literature review, or case reports that have not been accepted for publication or even published in other scientific journals. Articles published in cover key areas in the development of chemical and environmental engineering ...