Mahreni, Mahreni and Reza Rifky, Ramadhan and Muhammad Fadhil, Pramadhana and Annisa Putri, Permatasari and Dini Kurniawati, Kurniawati and Heri Septya Kusuma, Kusuma (2022) Synthesis of Metal Organic Framework (MOF) based Ca- Alginate for adsorption of malachite green dye. UNSPECIFIED.
Full text not available from this repository.Abstract
Abstract
Wastewater contaminated by dye produced by the rapid industrialization is a global
problem. One type of the dyes used in the industry is malachite green (MG). In this
study, we reported the results of designing and synthesizing the Ca-Alginate (Metal
Organic Framework (MOF)) as well as its application as an adsorbent to reduce the
amount of MG in wastewater. The alginate used for the synthesis of Ca-Alginate was
first obtained by extracting it from brown algae using sodium carbonate as a solvent.
In this study, Ca-Alginate was obtained by ion exchange process using calcium chloride
solution and calcination at a temperature of 900 °C. Based on the characterization
data, it was found that the adsorbent has a macropore structure with a specific
surface area of 0.614 m2/
g and a total pore volume of 1.744 × 10−
3 cc/g. The result
of the FTIR characterization showed the presence of hydroxyl groups, symmetrical
and asymmetrical carboxyl groups, and mannuronic and guluronic groups. These
groups indicated the presence of alginate. The adsorption ability test on the MG dye
was performed at various changes in contact time and concentration of the adsorbent,
while the MG concentration on the adsorption process was examined using the
batch system. The results showed that the highest reduction in MG occurred at the
contact time of 120 min, 0.06 g/L of adsorbent dosage and 0.0055 g/L of initial MG
concentration. Under these conditions the Ca-Alginate could adsorb up to 84.47% of
MG. The adsorption kinetic of MG onto Ca-Alginate obeyed the modified pseudofirst-
order (MPFO) model.
| Item Type: | Other |
|---|---|
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Eny Suparny |
| Date Deposited: | 25 Jun 2022 08:17 |
| Last Modified: | 25 Jun 2022 08:17 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/30095 |
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