Optimasi Persentase Massa Katalis Lantanum Nikel Fosfat Tertemplat Heksametilentetramin dengan Ni 0,1 Mol pada masing-masing Reaksi Selulosa, Glukosa, dan Fruktosa menjadi 5-HMF

Mulyanto, Mintang (2024) Optimasi Persentase Massa Katalis Lantanum Nikel Fosfat Tertemplat Heksametilentetramin dengan Ni 0,1 Mol pada masing-masing Reaksi Selulosa, Glukosa, dan Fruktosa menjadi 5-HMF. Other thesis, Institut Teknologi Sepuluh Nopember.

	Text 5004201120-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (2MB) | Request a copy
	Text 5004201120-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (2MB) | Request a copy

Abstract

Katalis lantanum nikel fosfat tertemplat heksametilentetramin (LNPH), dengan perbandingan mol La:Ni:PO4 sebesar 0,9:0,1:0,967 telah berhasil disintesis melalui metode sol-gel. Katalis hasil sintesis dikarakterisasi dengan X-ray Diffraction (XRD), spektrofotometer Fourier Transform Infrared (FTIR), adsorpsi piridin-FTIR, dan adsorpsi-desorpsi N2. Hasil sintesis berupa serbuk padatan berwarna abu-abu kehitaman. Hasil karakterisasi dengan XRD menunjukkan bahwa katalis LNPH memiliki struktur kristal heksagonal, karakterisasi dengan adsorpsi piridin-FTIR menunjukkan adanya situs keasaman Brønsted dan Lewis. Luas permukaan katalis sebesar 88,939 m2/g . Pengaruh persentase massa katalis diuji pada masing-masing reaksi konversi selulosa, glukosa, dan fruktosa menjadi 5-hidroksimetilfurfural (5-HMF) dengan persentase massa katalis yaitu 5, 10, 15, 20, 25, 30, dan 35% b/b dari massa reaktan awal. Hasil uji katalisis menunjukkan bahwa kondisi optimum untuk konversi dan selektivitas dalam pembentukan 5-HMF dari reaktan awal selulosa tercapai pada katalis 10% dari massa reaktan awal, menghasilkan yield sebesar 2,13%. Pada reaktan awal glukosa, kondisi optimum tercapai pada katalis 20% dari massa reaktan awal, dengan yield 5-HMF mencapai 15,52%. Pada reaktan awal fruktosa, katalis 15% dari massa reaktan awal merupakan kondisi optimum dengan yield 5-HMF sebesar 58,58%. Hasil ini menunjukkan bahwa LNPH memiliki aktivitas katalitik yang berbeda dalam konversi reaktan menjadi 5-HMF tergantung pada jenis reaktan awal yang digunakan.
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Hexamethylenetetramine-templated lanthanum nickel phosphate catalyst (LNPH), with a mole ratio of La:Ni:PO4 of 0,9:0,1:0,967 has been successfully synthesized through the sol-gel method. The synthesized catalyst was characterized by X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectrophotometer, pyridine adsorption-FTIR, and N2 adsorption-desorption. The synthesis results were in the form of a blackish gray solid powder. The characterization results with XRD showed that the LNPH catalyst has a hexagonal crystal structure, characterization with pyridine adsorption-FTIR showed the presence of Brønsted and Lewis acidity sites. The surface area of the catalyst was 88,939 m2/g. The effect of catalyst mass percentage was tested on each conversion reaction of cellulose, glucose, and fructose into 5 hydroxymethylfurfural (5-HMF) with catalyst mass percentages of 5, 10, 15, 20, 25, 30, and 35% w/w of the initial reactant mass. The results of the catalysis test showed that the optimum conditions for conversion and selectivity in the formation of 5-HMF from the initial reactant cellulose were achieved at a catalyst of 10% of the initial reactant mass, producing a yield of 2,13%. In the initial reactant glucose, the optimum conditions were achieved at a catalyst of 20% of the initial reactant mass, with a 5-HMF yield of 15,52%. In the initial reactant fructose, a catalyst of 15% of the initial reactant mass was the optimum condition with a 5-HMF yield of 58,58%. These results indicate that LNPH has different catalytic activities in the conversion of reactants into 5-HMF depending on the type of initial reactant used.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Katalis, lantanum fosfat, nikel, heksametilentetramin, selulosa, 5-hidroksimetilfurfural, Catalyst, lanthanum phosphate, nickel, hexamethylenetetramine, cellulose, 5-hydroxymethylfurfural
Subjects:	Q Science > QD Chemistry Q Science > QD Chemistry > QD501 Catalysis. Catalysts.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Mintang Mulyanto
Date Deposited:	29 Aug 2024 03:35
Last Modified:	29 Aug 2024 03:35
URI:	http://repository.its.ac.id/id/eprint/114673

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