SINTESIS FE3O4/SIO2/AG UNTUK ADSORPSI ZAT WARNA METILEN BIRU DAN UJI ANTIBAKTERI

KEMUNING, TIAS ANISA and Loekitowati, Poedji and Hermansyah, Hermansyah (2022) SINTESIS FE3O4/SIO2/AG UNTUK ADSORPSI ZAT WARNA METILEN BIRU DAN UJI ANTIBAKTERI. Undergraduate thesis, Sriwijaya University.

	Text RAMA_47201_08031181823088.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (2MB) | Request a copy
	Text RAMA_47201_08031181823088_TURNITIN.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (4MB) | Request a copy
Preview	Text RAMA_47201_08031181823088_0027086801_0019117101_01_front_ref.pdf - Accepted Version Available under License Creative Commons Public Domain Dedication. Download (848kB) | Preview
	Text RAMA_47201_08031181823088_0027086801_0019117101_02.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (617kB) | Request a copy
	Text RAMA_47201_08031181823088_0027086801_0019117101_03.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (272kB) | Request a copy
	Text RAMA_47201_08031181823088_0027086801_0019117101_04.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (569kB) | Request a copy
	Text RAMA_47201_08031181823088_0027086801_0019117101_05.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (7kB) | Request a copy
	Text RAMA_47201_08031181823088_0027086801_0019117101_06_ref.pdf - Bibliography Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (260kB) | Request a copy
	Text RAMA_47201_08031181823088_0027086801_0019117101_07_lamp.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (1MB) | Request a copy

Abstract

The research of synthesis Fe3O4/SiO2/Ag and aplication for adsorption of methylene blue dye and antibacterial activities has been done. Fe3O4 was synthesized using the coprecipitation method, Fe3O4/SiO2 was performed using the sol-gel method and Fe3O4/SiO2/Ag using the chemical reduction method. The Fe3O4/SiO2/Ag were characterized using XRD, SEM-EDS and VSM. The XRD results show the highest peak at 2θ = 35.55° with a crystal size 9.985 nm. The SEM-EDS results show composite surface uneven and the least distribution Si and Ag on the surface with constituent elements Fe (45.43%), O (37.63%), Si (0.77%), Ag (4.64%). The saturation magnetization of Fe3O4/SiO2/Ag composite has value of 54.697 emu/g. The pHpzc composite results are at pH 7.8. The optimum condition of Fe3O4/SiO2/Ag adsorption against methylene blue was at pH 11 with a concentration 50 mg/L and contact time 60 minutes with an adsorption effectiveness of 95.634%. The adsorpton isotherm against methylene blue according to the Freundlich isotherm model with adsorption capacity 4.386 mg/g and an n value 0.625 while adsorption kinetics according to the Pseudo second-order model with adsorption capacity 19.267 mg/g and k value 0.065 min-1. The Fe3O4/SiO2/Ag composites is able to inhibit Escherichia coli and Staphylococcus aureus bacteria to a concentration 1.25 µg/mL with inhibition zone diameters 10.41 mm and 9.5 mm, respectively.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	adsorpsi, antibakteri, komposit Fe3O4/SiO2/Ag, zat warna metilen biru.
Subjects:	Q Science > QD Chemistry > QD71-142 Analytical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Tias Anisa Kemuning
Date Deposited:	24 Nov 2022 07:03
Last Modified:	24 Nov 2022 07:03
URI:	http://repository.unsri.ac.id/id/eprint/82596

Actions (login required)

View Item