Malachite Green Removal by Zn/Al-citrate LDHs in Aqueous Solution
| Main Authors: | Hidayati, Nurlisa, Mohadi, Risfidian, Elfita, Elfita, Lesbani, Aldes |
|---|---|
| Format: | Article info application/pdf Journal |
| Bahasa: | eng |
| Terbitan: |
Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya
, 2020
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| Online Access: |
http://sciencetechindonesia.com/index.php/jsti/article/view/235 http://sciencetechindonesia.com/index.php/jsti/article/view/235/140 |
Daftar Isi:
- Zn/Al-citrate LDHs was synthesized using co precipitation method at basic condition and the material were applied as adsorbent of malachite green (MG) dye in aqueous medium using batch system. Adsorption of MG onto Zn/Al-citrate was investigated through kinetic, isotherm adsorption and thermodynamic studies. Kinetic model was fitted PSO than PFO for MG adsorption. The rate of adsorption k2 for Zn/Al LDHs was 0.000692 g.mg−1 min−1 and 0.000371 g for Zn/Al-citrate LDHs.mg−1 min−1. Adsorption of malachite green onto Zn/Al LDHs and Zn/Al citrate LDHs was investigated and following Langmuir adsorption isotherm model shows chemical adsorption process. The adsorption capacity maximum of Zn/Al-citrate is 333 mg/g from Zn/Al LDHs is only 111 mg/g. Thermodynamic parameters of Zn/Al-citrate confirmed adsorption process was endothermic and spontaneous.