Pemanfaatan Batu Apung Sebagai Sumber Silika Dalam Pembuatan Zeolit Sintetis
DOI:
https://doi.org/10.25077/jfu.2.4.%25p.2013Abstract
Telah dilakukan sintesis hidrotermal zeolit dari batu apung dengan metoda pencampuran natrium silikat dan natrium aluminat. Natrium silikat dan natrium aluiminat dicampurkan dengan variasi rasio Si/Al (10:15 ml, 15:15 ml, 20:15 ml, 25:15 ml dan  30:15 ml). Natrium silikat diperoleh dengan pencampuran 10 g batu apung dan 40 g NaOH (natrium hidroksida) disertai pemanasan  pada suhu 350°C. Natrium aluminat diperoleh dengan pencampuran NaOH dan Al(OH)3. Hasil difraktometer sinar-X (XRD) pada zeolit dengan rasio 15:15 menunjukkan zeolit yang diperoleh adalah jenis zeolit A. Uji konduktivitas dengan menggunakan LCR-meter menghasilkan nilai konduktivitas yang tinggi untuk masing-masing sampel dengan rentang nilai  0,375 mS/m hingga 0,404 mS/m. Nilai konduktivitas yang besar ini dapat dimanfaatkan sebagai penukar ion dan penyaring molekul.Downloads
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Copyright (c) 2014 Febri Melta Mahaddilla, Ardian Putra
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