Raniah, Camelia Balqis (2024) Optimasi Waktu Reaksi Masing-Masing Selulosa, Glukosa, dan Fruktosa Menjadi 5-Hmf dengan Katalis Lantanum Seng Nikel Fosfat Terdoping Zn dan Ni. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Katalis LaZnNiPO4 telah disintesis dengan perbandingan mol logam La ; Zn ; Ni sebesar 0,850; 0,050; 0,100. Katalis hasil sintesis dikarakterisasi dengan X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), adsorpsi-piridin FTIR, adsorpsi-desorpsi N2, dan Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDX). Hasil sintesis didapatkan katalis berupa serbuk padatan berwarna abu-abu. Hasil karakterisasi dengan XRD menunjukkan katalis LaZnNiPO4 memiliki struktur kristal heksagonal, karakterisasi dengan FTIR adsorpsi-piridin menunjukkan bahwa katalis memiliki situs keasaman Lewis dan Brønsted, karakterisasi dengan SEM menunjukkan morfologi berupa agregat, karakterisasi dengan adsorpsi-desorpsi N2 menunjukkan isoterm adsorpsi tipe IV, dan luas permukaan katalis sebesar 58,905 cm2/g .Uji katalisis dilakukan melalui masing-masing reaksi konversi selulosa, glukosa, dan fruktosa menjadi 5-Hidroksimetilfurfural (5-HMF) dengan variasi waktu katalisis yaitu 30; 60; 90; 120; dan 150 menit. Hasil uji katalisis menunjukkan waktu reaksi optimum selama 120 menit untuk ketiga reaktan awal. Konversi, yield, dan selektivitas 5-HMF dari reaksi selama 120 menit dengan reaktan awal selulosa masing-masing 42,82; 11,12; dan 25,38%. Konversi, yield, dan selektivitas 5-HMF dari reaksi selama 120 menit dengan reaktan awal glukosa masing-masing 70,61; 29,88; dan 42,31%. Konversi, yield, dan selektivitas 5-HMF dari reaksi selama 120 menit dengan reaktan awal fruktosa masing-masing adalah 96,94; 56,26; dan 56,76%.
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LaZnNiPO4 catalyst has been synthesized with a mole ratio of La: Zn: Ni metal of 0,850; 0,050; 0,100. The synthesized catalyst was characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), pyridine adsorption FTIR, N2 adsorption-desorption, and Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDX). The synthesis results obtained a catalyst in the form of a gray solid powder. The characterization results with XRD showed that the LaZnNiPO4 catalyst has a hexagonal crystal structure, characterization with FTIR adsorption-pyridine showed that the catalyst has Lewis and Brønsted acidity sites, characterization with SEM showed aggregate morphology, characterization with N2 adsorption-desorption showed type IV adsorption isotherm, and the catalyst surface area was 58,905 cm2/g. The catalysis test was carried out through each conversion reaction of cellulose, glucose, and fructose into 5-Hydroxymethylfurfural (5-HMF) with variations in catalysis time, namely 30; 60; 90; 120; and 150 minutes. The results of the catalysis test showed an optimum reaction time of 120 minutes for the three initial reactants. The conversion, yield, and selectivity of 5-HMF from the reaction for 120 minutes with the initial reactant cellulose were 42,82; 11,12; and 25,38%, respectively. The conversion, yield, and selectivity of 5-HMF from the reaction for 120 minutes with the initial reactant glucose were 70,61; 29,88; and 42,31%, respectively. The conversion, yield, and selectivity of 5-HMF from the reaction for 120 minutes with the initial reactant fructose were 96,94; 56,26; and 56,76%, respectively.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Lantanum Fosfat, Nikel, Seng, Konversi Selulosa, Waktu Reaksi, 5-HMF, Lanthanum Phosphate, Nickel, Zinc, Cellulose Conversion, Reaction Time, 5 HMF |
| Subjects: | Q Science > QD Chemistry Q Science > QD Chemistry > QD117.S64 Spectrophotometry Q Science > QD Chemistry > QD320 Cellulose. Hydrolysis Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Camelia Balqis Raniah |
| Date Deposited: | 13 Aug 2024 01:40 |
| Last Modified: | 29 Aug 2024 05:52 |
| URI: | http://repository.its.ac.id/id/eprint/114476 |
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