JAYATRI, MAULIDYA and Mohadi, Risfidian and Hidayati, Nurlisa (2018) SINTESIS DAN KARAKTERISASI HIDROKSI LAPIS GANDA Zn/Cr DAN Zn/Fe SERTA APLIKASINYA SEBAGAI ADSORBEN ZAT WARNA CONGO RED. Undergraduate thesis, Sriwijaya University.
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Abstract
Synthesis of Zn/Cr and Zn/Fe layered double hydroxide material have been carried out using coprecipitation method. The layered double hydroxide material Zn/Cr and Zn/Fe synthesized products were applied as adsorbents of congo red dye. The layered double hydroxide materials Zn/Cr and Zn/Fe were characterized using XRD analysis and FT-IR Spectrophotometer. The characterization using XRD analysis showed Zn/Cr layered double hydroxide has basal spacing of 7.23 Å at the diffraction angle of (2)12.9° and Zn/Fe has 5.737 Å at the diffraction angle of (2)15.430°. Characterization of FT-IR spectrophotometer showed that the wavenumber 416.2 cm-1, 848.68 cm-1 and 445 cm-1 stated Zn-O, Cr-O and Fe-O vibration. Maximum light absorption by congo red dye occurs at a wavelength of 497 nm and at pH 10. The congo red dye adsorption process using Zn/Cr layered double hydroxide that has an adsorption rate of 0.0050 g.mg-1 min-1 and Zn/Fe layered double hydroxide adsorbent is 0.0110 g.mg-1 min-1. The gibbs free energy (ΔG) of congo red adsorption process using Zn/Cr and Zn/Fe layered double hydroxide have a positive value.
Item Type: | Thesis (Undergraduate) |
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Uncontrolled Keywords: | Layered double hydroxide, Zn/Cr, Zn/Fe, adsorption, congo red. |
Subjects: | Q Science > QD Chemistry > QD1-999 Chemistry |
Divisions: | 08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1) |
Depositing User: | Mrs Kharisma Afrianti |
Date Deposited: | 02 Sep 2019 16:14 |
Last Modified: | 02 Sep 2019 16:14 |
URI: | http://repository.unsri.ac.id/id/eprint/6089 |
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