ADSORPSI ZAT WARNA CONGO RED MENGGUNAKAN ADSORBEN HIDROKSI LAPIS GANDA Ca/Fe DAN Mg/Fe

HELDA, HELDA and Lesbani, Aldes and Mohadi, Risfidian (2018) ADSORPSI ZAT WARNA CONGO RED MENGGUNAKAN ADSORBEN HIDROKSI LAPIS GANDA Ca/Fe DAN Mg/Fe. Undergraduate thesis, Sriwijaya University.

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Abstract

The synthesis of layered double hydroxide (LDH) Ca/Fe and Mg/Fe have been done. The layered double hydroxide (LDH) Ca/Fe and Mg/Fe were characterized by spektrofotometer FT-IR and XRD. Then, layered double hydroxide Ca/Fe and Mg/Fe were used as adsorbent of congo red dye. Characterization by FT-IR showed the vibration stretch layered double hydroxide Ca/Fe and Mg/Fe that appear of O-H at 3410.15 cm-1, Ca-O and Fe-O at 470.63 cm-1 and 586.36 cm-1 for layered double hydroxide Ca/Fe and O-H vibration stretch at 3448.72 cm-1, Mg-O and Fe-O at 347.19 cm-1 and 586.35 cm-1 for layered double hydroxide Mg/Fe. The XRD diffraction was showed in 2θ at 10̊ with the basal spasing of Ca/Fe is 8.08 Ǻ and Mg/Fe is 7.80 Ǻ. The adsorption process of congo red dye in layered double hydroxide compatible using pseudo-second-order equation. The Freundlich equation more suitable than Langmuir equation for congo red adsorption of layered double hydroxide Ca/Fe and Mg/Fe. Gibbs free energy (G) has negative value that showed the adsorption process occurs spontaneously and exothermic reactions as physical adsorption.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Layered double hydroxide Ca/Fe, Layered double hydroxide Mg/Fe, energy, adsorption, congo red
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Mrs Dies Meirita Sari
Date Deposited:	13 Aug 2019 02:26
Last Modified:	13 Aug 2019 02:26
URI:	http://repository.unsri.ac.id/id/eprint/4178

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