PREPARATION OF MAGNETITE-FULVIC ACID (Fe3O4-FA) FROM PEAT SOIL AND APPLICATION TO ADSORB RHODAMINE-B

Authors

  • Deby Ayu Oktaviana Oktaviana, D.A, Koesnarpadi, S, Widodo, N.T Program Studi Kimia FMIPA Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia, Jalan Barong Tongkok Kampus Gn Kelua FMIPA Universitas Mulawarman

DOI:

https://doi.org/10.30872/jkm.v18i2.964

Abstract

Pada penelitian ini dilakukan preparasi adsorben Fe3O4 terlapis asam fulvat (Fe3O4-AF) dari tanah gambut dan diaplikasikan untuk mengadsorpsi zat warna rhodamin B. Sintesis Fe3O4-AF dilakukan dengan metode ko-presipitasi, karakterisasi meliputi analisis FTIR, XRD, SEM dan VSM serta mengetahui kondisi pH optimum adsorpsi rhodamin-B pada Fe3O4-AF. Adsorben Fe3O4-AF berhasil disintesis dengan menunjukkan munculnya spektra FTIR yang khas yakni gugus Fe-O, O-H, C-H, C=C dan C=O. Struktur kristal Fe3O4-AF tidak mengalami perubahan, morfologi permukaan berupa koloid rigid AF tertempel bulatan sferis Fe3O4 dan nilai kemagnetan Fe3O4 menurun dengan adanya AF. Kondisi optimum adsorpsi rhodamin B pada Fe3O4-AF terjadi pada pada pH 3 dengan saya serap 1,96 mg/g.

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Published

2021-05-31

Issue

Vol. 18 No. 2 (2021)

Section

Artikel

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