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

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Penilaian

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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.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2207004665	T82596	T825962022	Central Library (Referens)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T825962022

Publisher

Inderalaya : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sriwijaya., 2022

Collation

xx, 85 hlm.; ilus.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

667.07

Content Type

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Media Type

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Carrier Type

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Edition

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Subject(s)

Jurusan Kimia
Teknologi Warna dan yang Berkaitan

Specific Detail Info

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Statement of Responsibility

SEPTA

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