The modified zeolite with silane agent, aminopropyltrimethoxyxilane (APTMS), has been successfully evaluated. Ammonium ions are one of pollutants found in groundwater produced from agricultural residues. These compounds in water are very difficult to be degraded by microorganisms and have high-level toxicity at higher concentrations. Therefore, in this study, zeolite-APTMS material has been developed as an effective material for removing ammonium in water. The modified materials were characterized by x-ray diffraction (XRD), fourier transform infrared (FTIR), surface area analyzer (SAA), and transmission electron microscope (TEM). The results indicated that the prepared materials have a low crystallinity with decreasing ratio of Si/Al with the surface area of 17.34 m2/g and excellent attached APTMS on the zeolite surface. The effect of contact time, pH of NH4+ solution, and zeolite-APTMS dosage were investigated with batch experiments. The adsorption equilibrium of NH4+ can be achieved within 20 min with the adsorption capacity of 61.7 mg g–1. The adsorption kinetic studies showed that the experiment followed the pseudo-second-order kinetics model and Freundlich model for adsorption isotherm. The results revealed that the presence of the amino-functional group on the zeolite surface could improve the binding analyte target not only as physical interaction but also through the hydrogen bonding as chemical interaction.
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21 April 2020
3RD INTERNATIONAL SEMINAR ON CHEMICAL EDUCATION: Trends, Applications, Changes in Chemical Education for the 4.0 Industrial Revolution
17 September 2019
Yogyakarta, Indonesia
Research Article|
April 21 2020
Surface modification of natural zeolite with silane agent as effective materials for removal of ammonium
Ganjar Fadillah;
Ganjar Fadillah
a)
1
Department of Chemistry, Chemical Analysis Study Program, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia
, Yogyakarta 55584, Indonesia
a)Corresponding author: [email protected]
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Uswatul Chasanah
Uswatul Chasanah
2
Gradute School of Universitas Gadjah Mada, Doctoral Program of Chemistry
, Yogyakarta 55281, Indonesia
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Ganjar Fadillah
1,a)
Uswatul Chasanah
2
1
Department of Chemistry, Chemical Analysis Study Program, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia
, Yogyakarta 55584, Indonesia
2
Gradute School of Universitas Gadjah Mada, Doctoral Program of Chemistry
, Yogyakarta 55281, Indonesia
a)Corresponding author: [email protected]
AIP Conf. Proc. 2229, 030029 (2020)
Citation
Ganjar Fadillah, Uswatul Chasanah; Surface modification of natural zeolite with silane agent as effective materials for removal of ammonium. AIP Conf. Proc. 21 April 2020; 2229 (1): 030029. https://doi.org/10.1063/5.0002648
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