SYNTHESIS OF NANOBENTONITE AS HEAVY METAL ADSORBENT WITH VARIOUS SOLVENTS

Sirait, Makmur and Gea, Saharman and Bukit, Nurdin and Siregar, Nurdin and Sitorus, Ceria (2018) SYNTHESIS OF NANOBENTONITE AS HEAVY METAL ADSORBENT WITH VARIOUS SOLVENTS. Oriental Journal of Chemistry, 34 (4). pp. 1854-1857. ISSN 0970-020 X

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Official URL: http://www.orientjchem.org/vol34no4/synthesis-of-n...

Abstract

The nanobentonite has been synthesized from natural bentonite taken from Tapanuli Utara, Indonesia using coprecipitation method with various solvents (HCl, H2SO4, and HNO3). Its properties as a metal adsorbent were investigated by Atomic Adsorption Spectrophotometry. X-Ray Diffraction analysis revealed that the bentonite produced is in nanometer scale. The characterization results obtained from the SiO2single phase with highest dhkl was at millier index (101) with 2 of 21.9o, 22.0o, 22.07o respectively. The results of Microscope-Scanning Electron Energy analysis of nanobentonite dispersion indicated a reduction in agglomeration and finer nanobentonite surface. The Surface Area Analyzer results showed the SBET nanobentonite for solvent variation of HCL, H2SO4, and HNO3 respectively were 731.76 m2/g, 868.11 m2/g, 493.97 m2/ g. Lastly, Atomic Adsorption Spectrophotometric test showed that the optimal absorption of the metal content possessed by variety of HCl and nanobentonites with adsorption power of 91.16% for Pb, 76.39% for Cu, and 82.74% Co.

Item Type: Article
Keywords: Nanobentonite; Coprecipitation; Various Solvent; Metal Adsorbent
Subjects: Q Science > QC Physics > QC310 Thermodynamics
Q Science > QD Chemistry > QD450 Physical and theoretical chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika
Depositing User: Mrs Gusti Lisa Utami
Date Deposited: 27 Dec 2018 06:52
URI: http://digilib.unimed.ac.id/id/eprint/31614

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