Palapa, Neza R. and Taher, Tarmizi and Mohadi, Risfidian and Rachmat, Addy and Mardiyanto, Mardiyanto and Miksusanti, Miksusanti and Lesbani, Aldes (2021) NiAl-layered double hydroxide intercalated with Keggin polyoxometalate as adsorbent of malachite green: kinetic and equilibrium studies (Similarity). Turnitin Universitas Sriwijaya. (Submitted)
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Abstract
In this study, we attempted to intercalate the Keggin polyoxometalate (POM) anion SiW12O40 4� with NiAl-layered double hydroxide using a facile ion-exchange technique under a N2 atmosphere. The obtained solids were characterized via X-ray diffraction analysis, Fourier-transform infrared spectroscopy, N2 adsorption-desorption isotherms, scanning and transmission electron microscopes to evaluate their surface morphology. Furthermore, the synthesized materials were employed as novel adsorbents for the removal of malachite green (MG) dye from aqueous solutions. The intercalation was successful. The synthesized material as an adsorbent for the removal of MG can be used for the removal of cationic dyes from aqueous solutions. The adsorption kinetics study showed that the adsorption of MG onto NiAl-POM best fitted the pseudo-second-order model, which indicated that the adsorption process was conducted chemically. Moreover, the adsorption isotherm revealed that the adsorption occurred in a monolayer system. The regeneration process showed that the high effectivity adsorption process after fifth cycles adsorption for NiAl-POM.
| Item Type: | Other |
|---|---|
| Subjects: | #3 Repository of Lecturer Academic Credit Systems (TPAK) > Results of Ithenticate Plagiarism and Similarity Checker |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 54241-Marine Science (S1) |
| Depositing User: | Dr.rer.nat Risfidian Mohadi |
| Date Deposited: | 07 Sep 2022 23:16 |
| Last Modified: | 07 Sep 2022 23:16 |
| URI: | http://repository.unsri.ac.id/id/eprint/77914 |
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