SARAGIH, ALVIN FEBRIANSYAH and Rachmat, Addy and Desnelli, Desnelli (2024) SINTESIS OKSIDA GRAFENA TEREDUKSI DARI SEKAM PADI DAN APLIKASINYA UNTUK ADSORPSI METILEN BIRU. Undergraduate thesis, Sriwijaya University.
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Abstract
Rice Husk is a biomass waste containing 34-44% cellulose, 23-30% lignin, and 13-39% hemicellulose. With the presence of these compounds, Rice Husk has the potential as a raw material in the synthesis of reduced graphene oxide (rGO). In this study, reduced graphene oxide was synthesized through the Hummer’s method using matoa leaf extract as a reducing agent. The synthesis results were characterized by XRD, FTIR and Raman Spectroscopy. The reduced graphene oxide (rGO) obtained was applied in the adsorption of methylene blue dye. The adsorption test of methylene blue dye was evaluated in various initial dye concentration, contact time and adsorbent ratio. Based on the XRD pattern, rGO rice husk has a peak of 2θ = 24.58°, FTIR characterization shows the presence of functional groups C=C, C- O, O-H and C=O and has a D peak at wave number 1359 cm-1 , a G peak at 1596 cm-1 and a 2D peak at 2657 cm-1 with an ID/IG ratio of 0.91 based on characterization by Raman Spectroscopy which indicated that rGO was formed. From the results of the adsorption test for methylene blue, the optimum conditions were obtained at the initial concentration of the dye 50 ppm, the contact time 30 minutes and the adsorbent weight 20 mg. rice husk rGO adsorption isotherm model followed the Langmuir isotherm model with a correlation coefficient of 0.9654, maximum adsorption capacity (Qm) of 56,49 mg/g and KL value = 0.1464 L/mg.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | chemical substances |
| Subjects: | Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1) |
| Depositing User: | Alvin Febriansyah Saragih |
| Date Deposited: | 26 Nov 2024 03:51 |
| Last Modified: | 26 Nov 2024 03:51 |
| URI: | http://repository.unsri.ac.id/id/eprint/159825 |
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