CD Skripsi

Sintesis Zeolit Dari Lempung Alam Pasca Kalsinasi 750oc: Pengaruh Waktu Aging Dan Suhu Refluks

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SUMMARY
Zeolite is a hydrated aluminosilicate mineral which contains alkaline and alkaline earth metals. Zeolite has adsorption ability, cation exchanger, and high hydrothermal stability. Study of the synthesis of zeolites based on Maredan natural clay has been widely used, but it still has low crystallinity. Aging time and reflux temperature are two factor which influence the crystallinity of zeolite. So that, these two factor were studied in the synthesis of zeolite from clay. The clay was activated using 3M sulfuric acid and calcined at temperature of 750oC for 3 hours. The activated clay was synthesized into zeolite which includes aging process with the variations of 3, 5, and 7 hours, and reflux process with variations in temperature of 80oC, 90oC, and 100oC for 8 hours. The zeolite obtained was characterized by instrument of XRF, XRD, SEM, and FTIR, which is each instrument for determined Si/Al ratio, type of zeolite, crystallinity, crystal size, morphology, functional groups, and acid sites. The results showed that the Si/Al ratio increased with the increasing of aging time and reflux temperature, with the highest ratio was 2,37. The dominant type of synthesized zeolite was sodalite with the highest crystallinity of 48,85% which was obtained from aging time of 5 hours and temperature reflux of 100oC. Zeolite crystal size increases with the increasing of aging time and reflux temperature. The resulting zeolite morphology showed the sodalite form which is spherical. The bond vibrations at a wave number between 560-650 cm-1 showed the presence of double-4-ring and double-6-ring which indicates the external ring vibrations of sodalite structure. The adsorption results with pyridine showed the presence of Lewis and Bronsted acid sites. The total acidity of zeolite ranges was about 0,045 mmol/g – 0,384 mmol/g.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 02. 121 (0005)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – Kimia., 2021

Deskripsi Fisik

v, 107 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 02. 121 (0005)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

ELFITRA

Versi lain/terkait

Lampiran Berkas

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