Sintesis Komposit GO/Fe3O4/HKUST-1 Sebagai Adsorben Dan Fotokatalis Untuk Pengurangan Kadar Metilen Biru.

Putri, Desindy Ramadhani (2022) Sintesis Komposit GO/Fe3O4/HKUST-1 Sebagai Adsorben Dan Fotokatalis Untuk Pengurangan Kadar Metilen Biru. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Material HKUST-1, Fe3O4, dan GO/Fe3O4/HKUST-1 telah berhasil disintesis dengan metode solvotermal dalam pelarut DMF:etanol:air pada suhu 100 °C selama 10 jam. Penambahan grafena oksida (GO) secara in situ dengan variasi massa 5, 10, dan 20% berturut-turut dinotasikan sebagai GO(5)/Fe3O4/HKUST-1, GO(10)/Fe3O4/HKUST-1, dan GO(20)/Fe3O4/HKUST-1. Difraktogram material hasil sintesis menunjukkan puncak karakteristik pada 2θ sekitar 6,63; 9,36; 11,51; dan 13,30° yang sesuai dengan pola difraktogram HKUST-1 standar. Spektra FTIR material hasil sintesis menunjukkan pita serapanpada bilangan gelombang yang sesuai dengan HKUST-1 standar. Morfologi permukaan dari GO/Fe3O4/HKUST-1 berbentuk oktahedral dengan partikel bulat yang mengelilingi permukaan HKUST-1 sehingga menyebabkan bentuknya lebih tidak teratur dan kasar. Stabilitas termal dari GO(20)/Fe3O4/HKUST-1 sebesar 430 °C lebih tinggi daripada HKUST-1 sebesar 356 °C. Nilai pH optimum yang didapatkan adalah pada pH 7. Kinerja adsorpsi material hasil sintesis dalam penghilangan MB menunjukkan bahwa penambahan GO dapat menyebabkan penurunan kapasitas adsorpsi. Semua material hasil sintesis mengikuti kinetika adsorpsi orde dua semu. Uji fotokatalitik menunjukkan bahwa penambahan GO 20% dapat menghasilkan pengurangan kadar metilen biru lebih tinggi daripada GO 5 dan 10%.
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The materials HKUST-1, Fe3O4, and GO/Fe3O4/HKUST-1 have been successfully synthesized by solvothermal method in solvent DMF:ethanol:water at temperature of 100 °C for 10 hours. The addition of graphene oxide (GO) in situ with mass variations of 5, 10, and 20% is notarized as GO(5)/Fe3O4/HKUST-1, GO(10)/Fe3O4/HKUST-1, and GO(20)/Fe3O4/HKUST-1, respectively. The synthesised material diffractogram showed a characteristic peak at 2θ about 6,63; 9,36; 11,51; and 13,30° which corresponds to the standard HKUST-1 diffractogram pattern. The FTIR spectra of the materials showed an absorption band at the same wavenumber according to the standard HKUST-1. The surface morphology of GO/Fe3O4/HKUST-1 is octahedral with spherical particles surrounding the HKUST-1 surface causing its shape to be more irregular and rough. The thermal stability of GO(20)/Fe3O4/HKUST-1 is 430 °C higher than that of HKUST-1 is 356 °C. The optimum pH value obtained is at pH 7. The adsorption performance of materials in the removal of methylene blue showed that the addition of GO can lead to decrease in adsorption capacity. All materials following kinetics adsorption of pseudo second-order. The photocatalytic test showed that 20% GO loading on the HKUST-1/Fe3O4 exhibited the higher methylene blue removal followed by 5 and 10% GO loading.

Item Type:	Thesis (Other)
Additional Information:	RSKi 541.33 Put s-1 2022
Uncontrolled Keywords:	HKUST-1, Fe3O4, Grafena Oksida, Adsorpsi, Fotokatalitik, Metilen Biru. HKUST-1, Fe3O4, Graphene Oxide, Adsorption, Photocatalytic, Methylene Blue.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	05 May 2026 07:13
Last Modified:	05 May 2026 07:13
URI:	http://repository.its.ac.id/id/eprint/132989

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