Synthesis of Mesoporous Alumina from Red Mud Repository

Synthesis of Mesoporous Alumina from Red Mud

Eka Putra Ramdhani and Suprapto and Didik Prasetyoko and Hartati (2015) Synthesis of Mesoporous Alumina from Red Mud. In: Proceeding of 2nd International Conference On Research, Implementation And Education Of Mathematics And Sciences 2015. Faculty of Mathematics and Sciences, Yogyakara State University, Yogyakarta, pp. 27-34. ISBN 978-979-96880-8-8

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Official URL: https://core.ac.uk/download/pdf/33518189.pdf

Abstract

Mesoporous Al2O3 has been successfully synthesized by using calcined red mud as raw material and cetyltrimethylammonium bromide (CTAB) as template at room temperature. The effect of CTAB ratio on the structural and textural properties of mesoporous Al2O3 was investigated. In this study, Al2O3 from red mud was separated by centrifugation, dissolving and precipitation methods. Firstly, HCl 6N solution was added to separate SiO2. Subsequently, other impurities was separated by addition of NaOH 5N solution. Physical properties of obtained samples were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, transmission electron microscopy (TEM), scanning electron microscopy (SEM) with energydispersive X-ray analysis (EDAX). The results indicated that red mud has a great potential as mesoporous alumina. XRF result of red mud from Bintan Kepulauan Riau shown that it most contains of Al2O3 29 wt%, Fe2O3 44.86 wt%, and SiO2 20.3 wt%. XRD results confirmed that mesoporous Al2O3 was obtained after calcined samples at 550 °C. BET results indicated that all samples had mesoporous structures with BET surface area of 241 m2/g and pore size of 3.820 nm. In addition, the reaction mechanism, involved in the process was proposed and discussed.

Item Type:

Book Section

Uncontrolled Keywords:

Mesoporous alumina, red mud, CTAB

Subjects:

Q Science
Q Science > QD Chemistry

Divisions:

08. Fakultas Sains dan Teknologi > Kimia

Creators:

Creators	NIM
Eka Putra Ramdhani	UNSPECIFIED
Suprapto	UNSPECIFIED
Didik Prasetyoko	UNSPECIFIED
Hartati	NIDN0015115907

Depositing User:

Mr Vega Andi Budiman

Date Deposited:

07 Sep 2020 01:58

Last Modified:

07 Sep 2020 01:58

URI:

http://repository.unair.ac.id/id/eprint/98193

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