SINTESIS SENYAWA HIDROKSI LAPIS GANDA (LDH) Ni/Fe DAN Ni/Cr, SERTA APLIKASINYA SEBAGAI ADSORBEN ZAT WARNA CONGO RED

HARDIYANTI, TIRTA SARI and Mohadi, Risfidian and Hidayati, Nurlisa (2018) SINTESIS SENYAWA HIDROKSI LAPIS GANDA (LDH) Ni/Fe DAN Ni/Cr, SERTA APLIKASINYA SEBAGAI ADSORBEN ZAT WARNA CONGO RED. Undergraduate thesis, Sriwijaya University.

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Abstract

Synthesis of layered double hydroxides Ni/Fe and Ni/Cr have been done by coprecipitation method.The layered double hydroxides synthesis of Ni/Fe and Ni/Cr characterized by X-Ray Diffraction analysis and FT-IR spectrophotometer. The result of XRD analysis showed that the layered double hydroxide Ni/Fe has peak diffraction at 2θ value at 10° and the other diffraction at 11.41o; 23.06o; 29,40o with the basal spacing 7.74 Ȧ; 3.85 Ȧ dan 3.03 Ȧ. Ni/Cr has peak diffraction of 2θ at 20.47°; 29.68°; 33.394°; 38.94° dan 59.43°. FT-IR spectrum of Ni/Fe has the vibration of O-H, Fe-O, and Ni-O vibration showed wavenumbers 1635 cm-1, 840 cm-1, 455 cm-1. Adsorption of congo red dye on the layered double hydroxides Ni/Fe and Ni/Cr are affected by pHpzc at various times, concentrations, and temperatures. The adsorption process of congo red use the pseudo-second-order equation where the effect of various times on the layered double hydroxides of Ni/Fe is greater than Ni/Cr so the reactivity of Ni/Fe is greater than Ni/Cr. The Feundlich equation shows a Gibbs free energy (ΔG) is negative value that show the congo red dye process occurs spontaneously. The adsorption capacity of Ni/Fe and Ni/Cr increased along increasing of the layered double hydroxides temperature.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Ni/Fe, Ni/Cr, adsorpstion, congo red dye
Subjects:	Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry Q Science > QD Chemistry > QD701-731 Photochemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 48201-Pharmacy (S1)
Depositing User:	Mrs Dies Meirita Sari
Date Deposited:	19 Aug 2019 05:03
Last Modified:	19 Aug 2019 05:03
URI:	http://repository.unsri.ac.id/id/eprint/4527

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