Sintesis Oksida Grafena dari Arang Tempurung Kelapa Untuk Aplikasi Antibakteri dan Antioksidan

Ahmad Sjahriza, Surya Herlambang

Abstract


Oksida grafena adalah turunan dari grafena yang mudah disintesis dan aplikasi yang sangat luas. Penelitian ini bertujuan menyintesisoksida grafena dari arang tempurung kelapa yang memiliki karakter partikel nano karbon sebagai antibakteri dan antioksidan. Oksida grafena dari arang tersebut berhasil disintesis dengan rendemen 1,85% b/b menggunakan modifikasi metode Hummers dengan ukuran rataan partikel 33,7 nm. Gugus fungsi beroksigen pada spektrum inframerah pada bilangan gelombang 2933 cm-1 dan 1615 cm-1 menandakan oksida grafena berhasil terbentuk. Puncak difraksi sinar X 23,5o dan kristalinitas sebesar 6,85%. Derajat kristalinitas yang rendah menunjukan bahwa oksida grafena memiliki fasa amorf. Aktivitas antioksidan ditentukan berdasarkan kemampuannya mereduksi besi(III) dan hasil sintesis memperlihatkan aktivitas antioksidan sebesar 50% dibanding standar. Hasil pengujian antibakteri ditandai dengan terbentuknya zona bening terhadap bakteri Escherichia coli dan Staphylococcus aureus sehingga oksida grafena memiliki aktivitas antibakteri namun tergolong lemah.


Keywords


antibakterli; antioksidan; arang tempurung kelapa; oksida grafena

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References


C. Lee, X. Wei, J. Kysar, and J. Hone, “Measurement of the elastic properties and intrinsic strength of monolayer graphene”, Science, vol. 321, no. 5887, pp. 385–388, 2008.

K.P. Loh, Q. Bao, G. Eda, and M. Chhowalla, “Graphene oxide as a chemically tunable platform for optical applications”, Nature Chemistry, vol. 2, no. 12, pp. 1015–1024, 2010.

J. McDonald-Wharry, M. Manley-Harris, and K. Pickering, “Carbonisation of biomass derived chars and the thermal reduction of a graphene oxide sample studied using Raman spectroscopy”, Carbon, vol. 59, pp. 383-405, 2013.

S.S. Shams, L.S. Zhang, R. Hu, R. Zhang, and J. Zhu, “Synthesis of graphene from biomass: A green chemistry approach”, Materials Letters, vol. 161, pp. 476-479, 2015.

A. Sjahriza, Z.A. Mas’ud, and K. Sutirah, “Mechanical and barrier properties of PVP-carbon dot nanocomposite film”, Jurnal Kimia Terapan Indonesia, vol. 20, no. 2, pp. 49-56, 2018.

K. Gerani, H.R. Mortaheb, and B. Mokhtarani, “Preparation and characterization of sulfonated polyether sulfone composite ion-exchange membranes filled by graphene oxide Nano sheets”, Conference: 12th International Conference on Membrane science & technology, 2015.

J. Chen, B. Yao, C. Li, and G. Shi, “An improved hummers metode foe eco-friendly synthesis of grafena oxide”, Journal Carbon, vol. 64, pp. 225-229, 2013.

L.Y. Ersan, T. Oscan, A.A. Bayizit, and S. Sahin, “The antioxidative capacity of kefir produced from goat milk. international”, Journal of Chemical Engineering and Applications, vol. 7, no. 1, pp. 22–26, 2016.

T. Chen, B. Zeng, J.L. Liu, J.H. Dong, X.Q. Liu, Z. Wu, and Z.M. Li, “High through put exfoliation of graphene oxide from expanded graphite with assistance of strong oxidant in modified Hummers method”, Journal of Physics: Conference Series, vol. 188, no. 1, 2009.

M.L. Bhaisare, A. Talib, M.S. Khan, S. Pandey, and H.F. Wu, “Synthesis of fluorescent carbon dots via microwave carbonization of citric acid in presence of tetraoctylammonium ion, and their application to cellular bioimaging”, Microchimia Acta, vol. 182, pp. 2173-2181, 2015.

J.D. Mangadlao, C.M. Santos, M.J.L. Felipe, A.C.C. Leon, D.F. Rodrigues, and R.C. Advincula, “On the antibacterial machanism of graphene oxide (GO) langmuir blodget films”, Journal Chemistry, vol. 51, no. 2, pp. 2886-2889, 2015.

V.H. Pham, H.D. Pham, T.T. Dang, S.H. Hur, E.J. Kim, et al., “Chemical reduction of an aqueous suspension of graphene oxide by nascent hydrogen”, Journal of Materials Chemistry, vol. 22, no. 21, 2012,

G. Supriyanto, N.K. Rukhman, A.K. Nisa, M. Jannatin, B. Piere, Abdullah, M.Z. Fahmi, and H.S. Kusuma, “Graphene oxide from Indonesia biomass: Synthesis and characterization”, Bio Resources, vol. 13, no. 13, pp. 4832-4840, 2018.

S. Guo, G. Zhang, Y. Guo, and J.C. Yu, “Graphene oxide-Fe2O3 hybrid material as highly efficient heterogeneous catalyst for degradation of organic contaminants”, Journal Carbon, vol. 60, no. 39, pp. 437-444, 2013.

G. Surekha, K.V. Krishnaiah, N. Ravi, and P. Suvarna, “FTIR, Raman and XRD analysis of graphene oxide films prepared by modified Hummers method”, Journal of Physics: Conference Series. Vol. 1495, pp. 1-6, 2020.

R.R. Ghanim, M.A. Hussien, and M.R. Muhammad, “Antibacterial activity and morphological characterization of synthesis graphene oxide nanosheets by simplified hummerss method”, Journal Biotech Research Asia, vol. 15, no. 3, pp. 627-633, 2018.

D.R. Dreyer, S. Park, and C.W. Bielawski, “The chemistry of graphene oxide”, Chemical Society, vol. 39, no. 1, pp. 228-240, 2010.

S. Liu, T.H. Zeng, M. Hofmann, E. Burcombe, J. Wei, R. Jiang, J. Kong, and Y. Chen, “Antibacterial activity of graphite, graphite oxide, graphene oxide, and reduced graphene oxide: membrane and oxidative stress”, ACS Nano, vol. 5, no, 9, pp. 6971-6980, 2011.

Y. Qiu, Z. Wang, C.E. Alisa, S. Owen, I. Kulaots, et al., “Antioxidant chemistry of graphene-based materials and its role in oxidation protection technology”, Nanoscale, vol. 6, no. 1, pp. 1744–11755, 2014.

H. Saleem , M. Haneef , and H.Y. Abbasi, “Synthesis route of reduced graphene oxide via thermal reduction of chemically exfoliated graphene oxide”, Materials Chemistry and Physics, vol. 204, pp. 1-7, 2018.




DOI: https://doi.org/10.15575/ak.v8i2.13473

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