Eco-Friendly Synthesis of Nanozeolite NaA from Rice Husk Ash and its Efficiency in Removing Ammonium Ions

Methodius Anak Nawog; Mohd Nazlan Mohd Muhid; Nik Ahmad Nizam Nik Malek; Halimaton Hamdan

doi:10.4028/www.scientific.net/KEM.594-595.168

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 594-595Eco-Friendly Synthesis of Nanozeolite NaA from...

Eco-Friendly Synthesis of Nanozeolite NaA from Rice Husk Ash and its Efficiency in Removing Ammonium Ions

Abstract:

The eco-friendly synthesis of nanozeolite need to be developed in order to minimize the consumption of unwanted excess extracted solutions or solvents and maximize the utilization of beneficial wastes as its raw materials. Thus, the synthesis of nanozeolite NaA from rice husk ash (RHA) without extraction of silica from RHA and without organic template has been successfully achieved. Nanozeolite NaA was synthesized from rice husk ash (RHA) via this main step: aging the aluminosilicate suspension (3.190 Na₂O: Al₂O₃: 1.4SiO₂:235.07H₂O) for 3 days at room temperature with agitation rate of 150 rpm followed by heating at 55 °C for 18 hours. The nanozeolite NaA was confirmed by XRD, FTIR, FESEM and particle size distribution analysis where the highest particle size was in the range of 100 to 400 nm. Its efficiency in removing ammonium ions in aqueous solution was found to be better than that of microsized zeolite NaA thus proved that the lower particle sizes of zeolite NaA (nanosize) tended to have higher adsorption sites and higher exchange capacity.

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Periodical:

Key Engineering Materials (Volumes 594-595)

Pages:

168-172

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.594-595.168

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Online since:

December 2013

Authors:

Methodius Anak Nawog, Mohd Nazlan Mohd Muhid, Nik Ahmad Nizam Nik Malek, Halimaton Hamdan

Keywords:

Ammonium, Nanozeolite NaA, Rice Husk Ash

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