Optimasi Massa Katalis Lantanum Seng Fosfat Tertemplat Heksametilentetramin (HMT) dengan Zn 0,1 Mol pada Reaksi Selulosa menjadi 5-HMF

Prasasti, Kalinda Ayu (2024) Optimasi Massa Katalis Lantanum Seng Fosfat Tertemplat Heksametilentetramin (HMT) dengan Zn 0,1 Mol pada Reaksi Selulosa menjadi 5-HMF. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Katalis lantanum seng fosfat tertemplat HMT (LZPH) telah berhasil disintesis melalui metode sol gel dengan perbandingan mol La : Zn : PO4¬ masing-masing sebesar 0,900 : 0,100 : 0,967. Katalis hasil sintesis dikarakterisasi dengan X-Ray Diffraction (XRD), Spektrofotometer Fourier Transform Infrared (FTIR), adsorpsi piridin-FTIR, adsorpsi-desorpsi N2, Scanning Electron Microscopy Energy Dispersive X-Ray (SEM-EDX). Hasil sintesis didapatkan katalis berupa serbuk padatan berwarna putih. Hasil karakterisasi dengan XRD menunjukkan bahwa katalis LZPH memiliki struktur kristal heksagonal, karakterisasi dengan adsorpsi piridin-FTIR menunjukkan adanya sisi asam Lewis dan Brønsted, karakterisasi dengan adsorpsi-desorpsi N2 menunjukkan isoterm adsorpsi tipe IV, dan karakterisasi dengan SEM-EDX menunjukan morfologi berupa gumpalan tidak teratur. Katalis mempunyai Luas permukaan sebesar 84,899 m2/g. Aktivitas katalis diuji pada masing-masing reaksi konversi selulosa, glukosa, dan fruktosa menjadi 5-HMF dengan variasi persentase massa katalis, yaitu 15, 20, 25, 30, 35, dan 45% b/b dari massa reaktan awal. Hasil uji katalisis menunjukkan kondisi optimum dalam pembentukan 5-HMF dari reaktan awal selulosa dan glukosa tercapai pada persentase massa 25% dengan yield 5-HMF masing-masing sebesar 26,64 dan 43,75%. Pada reaktan awal fruktosa kondisi optimum tercapai pada persentase massa 35% dengan yield 5-HMF sebesar 63,09%. Variasi massa katalis menunjukkan bahwa LZPH memiliki aktivitas katalitik yang berbeda dalam konversi reaktan menjadi 5-HMF.
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The Lanthanum Zinc Phosphate catalyst HMT (LZPH) has been successfully synthesized through the Sol Gel method with the ratio of mole La: Zn: PO4 respectively 0.900 : 0.100 : 0.967. The synthesis catalyst is characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectrophotometer, Pyridin-FTIR adsorption, N2 adsorption-Desorption, Microscopy Electron Scanning Electron Energy Dispersive X-Ray (SEM-EDX). The synthesis results obtained a catalyst in the form of white solid powder. The result of characterization with XRD shows that the LZPH catalyst has a hexagonal crystal structure, characterization with pyridine-FTIR adsorption shows the presence of the side of the Lewis and Brønsted acid, characterization with N2 adsorption shows the adsorption of type IV, and characterization with SEM-EDX indicates morphology regular. The catalyst has a surface area as large as 84,899 m2/g. The catalyst activity is tested in each cellulose, glucose, and fructose conversion reaction to 5-HMF with a variety of catalyst mass percentage, which is 15, 20, 25, 30, 35, and 45% w/w from the initial reactant mass. The catalysis test results show the optimum condition in the formation of 5-HMF from the initial reactants of cellulose and glucose is achieved at a mass percentage of 25% with a 5-HMF yield of 26.64 and 43.75% respectively. In the initial reactant fructose optimum condition was achieved in a mass percentage of 35% with a 5-HMF yield of 63.09%. Catalyst mass variations indicate that LZPH has different catalytic activity in reactant conversion to 5-HMF.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	5-Hidroksimetilfurfural, HMT, Katalis, Konversi Selulosa, Lantanum Seng Fosfat, 5-Hydroxymethylfurfural, Catalyst, Lanthanum Zinc Phosphate, Cellulose Conversion
Subjects:	Q Science > QD Chemistry > QD117 Absorption Q Science > QD Chemistry > QD320 Cellulose. Hydrolysis Q Science > QD Chemistry > QD481 Chemical structure. Q Science > QD Chemistry > QD501 Catalysis. Catalysts.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Kalinda Ayu Prasasti
Date Deposited:	15 Aug 2024 02:29
Last Modified:	15 Aug 2024 02:29
URI:	http://repository.its.ac.id/id/eprint/114444

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