PENGARUH KONSENTRASI NaOH TERHADAP UKURAN KRISTAL ZEOLIT A YANG DISINTESIS DARI LIMBAH GEOTHERMAL

Authors

  • Deni Fajar Fitriyana
  • Sulardjaka Sulardjaka
  • Norman Iskandar
  • Muhammad Zulfikar

DOI:

https://doi.org/10.36499/jim.v14i2.2511

Abstract

Telah dilakukan sintesis zeolite berbahan dasar limbah geothermal dari Pembangkit Listrik Tenaga Panas Bumi (PLTP) Geo Dipa Energi, Dieng, Wonosobo, Jawa Tengah. Penelitian ini bertujuan untuk meneliti pengaruh konsentrasi NaOH terhadap karakteristik zeolit yang disintesis dari limbah geothermal. Sebelum digunakan sebagai bahan dasar sintesis, lumpur geothermal terlebih dahulu dilakukan kalsinasi pada suhu 850oC selama 3 jam. Sintesis menggunakan metode hydrothermal pada suhu100oC selama 4 jam dengan variasi konsentrasi NaOH 1,67 M, 3M dan 5M. Karakterisasi produk sintesis dilakukan dengan menggunakan spektroskopi serapan atom (AAS), difraktometer sinar-x (XRD) dan scanning electron microscope (SEM). Dari hasil uji AAS kandungan silika pada lumpur geothermal setelah proses kalsinasi meningkat dari 49,1% menjadi 80.0426%. Dari hasil analisis data XRD dan SEM, peningkatan konsentrasi NaOH akan menurukan crystal sizes dan crystallization time zeolite A.

Kata Kunci: sintesis, hidrotermal, zeolit A, sodalit

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Published

2018-11-29

Issue

Vol. 14 No. 2 (2018)

Section

Articles

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