PEMBUATAN KOMPOSIT BENTONIT-ALUMINA SEBAGAI ADSORBEN ZAT WARNA METIL MERAH

YULIANTI, DEVI and Yuliasari, Nova and Riyanti, Fahma (2019) PEMBUATAN KOMPOSIT BENTONIT-ALUMINA SEBAGAI ADSORBEN ZAT WARNA METIL MERAH. Undergraduate thesis, Sriwijaya University.

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Abstract

Research on preparation bentonite-alumina composite with coprecipitation methods to adsorb methyl red dyes has been done. The bentonite-alumina composite was characterized using XRD and SEM-EDS. Adsorption variables include of contact time, weight and concentration. The characterization of bentonite-alumina composite using XRD showed a widening peak (2θ = 66.50) indicating the presence of amorphous alumina. The SEM analysis of bentonit-alumina composite showed that alumina was attached to the surface of bentonite. The EDS showed that the Al content in activated bentonite was 4.59 % and after being composite with alumina it increased to 49.06 %. The value of pHPZC bentonite activation was 2.94 while bentonite-alumina composite 4.97. The optimum conditions for adsorption of methyl red using activated bentonite were obtained at 60 minutes contact time and optimum weight of 0.09 g while bentonite-alumina composite were obtained at 40 minutes contact time and optimum weigth 0.07 g. The adsorption isoterm of activated bentonite on methyl red dyes follow the Freundlich isotherm while bentonite-alumina composite on methyl red dyes follow the Freundlich and Langmuir isotherm. The adsorption capacity of bentonite-alumina composite is greater than activated bentonite and can adsorb methyl red dyes.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Bentonit Teraktivasi, Komposit Bentonit-Alumina, Adsorpsi, Metil Merah
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry Q Science > QD Chemistry > QD71-142 Analytical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Users 2408 not found.
Date Deposited:	09 Oct 2019 02:40
Last Modified:	09 Oct 2019 04:29
URI:	http://repository.unsri.ac.id/id/eprint/11206

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