SINTESIS OKSIDA GRAFENA TEREDUKSI DARI TANDAN KOSONG KELAPA SAWIT MENGGUNAKAN REDUKTOR EKSTRAK DAUN MATOA DAN APLIKASINYA UNTUK ADSORPSI METILEN BIRU

SAFITRI, NADIA LESTARI and Rachmat, Addy and Said, Muhammad (2022) SINTESIS OKSIDA GRAFENA TEREDUKSI DARI TANDAN KOSONG KELAPA SAWIT MENGGUNAKAN REDUKTOR EKSTRAK DAUN MATOA DAN APLIKASINYA UNTUK ADSORPSI METILEN BIRU. Undergraduate thesis, Sriwijaya University.

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Abstract

The research about synthesis reduced graphene oxide from oil palm empty fruit bunches using matoa leaf extract as reducing agent and its application for methylene blue adsorption has been done. To obtain an efficient adsorbent, synthesis of reduced graphene oxide from oil palm empty fruit bunches was carried out. Oil palm empty fruit bunches were chosen as a source of biomass because of their abundance and composed of mainly carbon elements. Graphene oxide synthesis carried out using the Hummer Method. Graphene oxide was reduced to reduced graphene oxide. Analysis of the results of characterization with XRD showed a peak angle 2θ of 24.4º with a d-spacing value of 0.365 nm. Analysis by FTIR showed the O–H, C N, C=C and C–H functional groups with lower intensities than GO. Characterization by Raman spectroscopy showed the D line at 1381 cm–1, G at 1592 cm–1 and 2D at 2685 cm–1 with a defect intensity ratio compared to graphite of 0.93. The synthesized reduced graphene oxide was applied as adsorbent to adsorb methylene blue which often causes pollution to the aquatic environment. The results of the adsorption test on the concentration of the adsorbed adsorbent showed the optimum conditions for the adsorption of methylene blue at the concentration of 50 mg/L as much as 36.95 mg/L, time contact of 45 minutes as much as 42.40 mg/L, and adsorbent mass of 25 mg was 49.856 mg/L. The reduced graphene oxide adsorption isotherm followed the Langmuir model with correlation coefficient value of 0.9998, maximum adsorption capacity of 54.945 mg/g and KL value of 0.587 L/mg.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Oksida grafena tereduksi, Hummer, Metilen biru, Adsorpsi
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Nadia Lestari Safitri
Date Deposited:	27 Jul 2022 03:46
Last Modified:	27 Jul 2022 03:46
URI:	http://repository.unsri.ac.id/id/eprint/74921

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