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All Journal Jurnal Matematika & Sains Indonesian Journal of Chemistry
Shofarul Wustoni
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha no. 10 Bandung 40132
Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics

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Sintesis Zeolit Mordenit dengan Bantuan Benih Mineral Alam Indonesia Shofarul Wustoni; Rino R. Mukti; Agus Wahyudi; Ismunandar Ismunandar
Jurnal Matematika & Sains Vol 16, No 3 (2011)
Publisher : Institut Teknologi Bandung

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Abstract

Abstract Commercialized Indonesian natural mineral was generally suspected to contain natural zeolite. However, according to X-ray diffraction pattern, there is no indication of zeolite fingerprint. Hence, this research aims to use this mineral as seed in a hydrothermal synthesis to further investigate the possibility of growing zeolite material. Mordenite zeolite was resulted as the product and this concludes that the building blocks of natural zeolite might be present in this local mineral. Keywords: Indonesian mineral, Natural zeolites, Mordenite, Zeolite synthesis, Seed, Hydrothermal. Abstrak Mineral alam Indonesia yang sudah komersial pada umumnya dianggap mengandung zeolit alam. Namun, pola difraksi sinar X nya menunjukkan bahwa tidak ada indikasi puncak-puncak khas zeolit. Oleh karena itu, penelitian ini bertujuan untuk menggunakan mineral alam sebagai benih dalam sintesis hidrotermal sebagai upaya menginvestigasi kemungkinan untuk menumbuhkan material zeolit. Zeolit Mordenit dapat dihasilkan sebagai produk dan hal ini menyimpulkan bahwa mineral lokal ini mengandung unit pembangun zeolit alam. Kata kunci: Mineral alam Indonesia, Zeolit alam, Mordenit, Sintesis zeolit, Benih, Hidrotermal.
CONVERSION OF THE LOW QUALITY INDONESIAN NATURALLY-OCCURRING MINERALS INTO SELECTIVE TYPE OF ZEOLITES BY SEED-ASSISTED SYNTHESIS METHOD Rino R. Mukti; Shofarul Wustoni; Agus Wahyudi; Ismunandar Ismunandar
Indonesian Journal of Chemistry Vol 13, No 3 (2013)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.659 KB) | DOI: 10.22146/ijc.21288

Abstract

An X-ray diffraction (XRD) revealed that Indonesian naturally-occurring mineral from Nanggung, Bogor shows to be a low quality product as it does not seem to contain any zeolite materials. As located in the volcanic area, Indonesia essentially has abundant source of natural zeolites and the country has put much efforts on these treasured materials for export commodity. In order to bring the local natural mineral into high value and to discover whether the mineral has at least zeolitic fragments, we have implemented seed-assisted synthesis to see the possibility of growing zeolite and turn this mineral into high quality. In principle, once the mineral has zeolitic fragment or nuclei, recrystallization of the mineral may occur. By utilizing this mineral as seed in aluminosilicate mother solution, selective mordenite-type (MOR) zeolite can be obtained after hydrothermal treatment. Characterization by XRD showed that this MOR zeolite has high crystallinity and scanning electron microscopy (SEM) depicted the crystal morphology. The natural mineral is conclusively essential for the formation of MOR zeolite by seeding the aluminosilicate mother solution. In the absence of aluminosilicate mother solution, natural mineral can be recrystallized into selective analcime-type (ANA) zeolite. MOR zeolite is known to be useful for several applications such as catalysis whereas ANA zeolite has been considered to be less potential due to relatively small microporosity.
Co-Authors Agus Wahyudi Agus Wahyudi Ismunandar Ismunandar Ismunandar Rino R. Mukti Rino R. Mukti