Kausar, Radho Al and ., Buhani and ., Suharso and Setiawan, Andi (2020) Synthesis and Characterization Exopolysaccharide from Algae Spirulina sp. using Technique Sol-Gel as Absorbent Ion Metal Pb(II). In: INTERNATIONAL CONFERENCE ON SCIENCE, TECHNOLOGY AND INTERDISCIPLINARY RESEARCH, 20-21 Oktober 2020, Bandar Lampung. (Submitted)
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Abstract
In this study, a modification of exopolysaccharide (EPS) from Spirulina sp. algae biomass with silica (HES) and exopolysaccharide from Spirulina sp. algae biomass with silica coated by magnetite particles (HESM) has been done successfully. A series of experiments with the Batch method were conducted to test the ability of HESM adsorption of Pb(II) ions in solution. Identification of functional groups of HESM adsorbents was studied using infrared spectrophotometer (IR) while surface morphological analysis and composition of the constituent elements of HESM were performed using scanning electron microscope-energy dispersive x-ray (SEM-EDX). Concentration of Pb(II) ion in the adsorption process were analysed by inductively coupled plasma-atomic emission spectrometry (ICP-AES).The percentage of Pb(II) ions adsorbed by HESM at pH 7 and an initial concentration of 25 ppm was 99.23%. The adsorption of Pb(II) ions by HESM tends to follow the pseudo second order kinetics model and the Langmuir adsorption isotherm model.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia |
| Depositing User: | BUHANI |
| Date Deposited: | 17 Nov 2020 04:24 |
| Last Modified: | 17 Nov 2020 04:24 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/25732 |
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