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SYNTHESIS AND CHARACTERIZATION OF GRAPHENE OXIDE USING LIQUID PHASE EXFOLIATION (LPE) DAN HUMMER’S METHOD: MINI REVIEW Duratulhikmah, Nur Fadhilah; Hindryawati, Noor; Syaima, Husna
PROSIDING SEMINAR KIMIA Vol 2 No 1 (2023): Prosiding SNK 2023
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Graphene oxide (GO) is a 2D material that has various oxygen functional groups on its surface and edges. The existence of these clusters makes GO have enormous potential to be applied in various fields. Currently various methods have been developed to synthesize these materials including Liquid Phase Exfoliation (LPE) and Hummer's. This review will present the synthesis of Graphene oxide along with the results of its characterization using Fourier Transform Infra Red (FTIR), Raman Spectroscopy, and UV-Vis spectrophotometer. Literature results show that in FTIR the typical functional groups that will appear are the O-H, C=O, and C-O epoxy groups, on Raman spectroscopy it shows peaks of 1300-1400 cm-1 (D-band) and peaks of 1500-1600 cm-1 (G -band) and there is a maximum absorption peak value at a wavelength of 200-235 nm from the results of UV-Vis characterization Keywords: Graphene Oxide, Hummer’s, Liquid Phase Exfoliation, Raman Spectroscopy
Mini Review: Citrus sinensis Sebagai Bioreduktor Dalam Green Synthesis Nanopartikel Hiyahara, Irfan Ashari; Hindryawati, Noor; Syaima, Husna; Akbar, Muhammad Marion; Duratulhikmah, Nur Fadhilah; Putra, Narundana Perdana; Wulandari, Siti Aprilia; Larasati, Zarra Udyani; Rahayuningsih, Rahayuningsih; Indriani, Isah Waliah
JURNAL ATOMIK Vol 8 No 1 (2023)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Green synthesis is an eco-friendly approach that provides a viable alternative to traditional physical and chemical methods for the production of nanoparticles. This technique employs non-toxic and safe materials, such as plants, microorganisms, algae, bacteria, yeast, and fungi, to generate stable and less toxic nanoparticles. Citrus sinensis, commonly known as sweet orange, is a plant that contains various active compounds. These bioactive compounds can be extracted and used as bioreductants in green synthesis of nanoparticles. This mini review aimed to provide an overview of the current state of research on the utilization of Citrus sinensis as a bioreductant in the production of nanoparticles. A systematic search strategy was employed to identify research articles that met the criteria of discussing green synthesis of nanoparticles with Citrus sinensis as a bioreductant. The nanoparticles produced using Citrus sinensis extract can be either metal nanoparticles or metal oxide nanoparticles. The review highlights the distribution of nanoparticles produced with Citrus sinensis extract, their applications, and the extraction process of Citrus sinensis commonly employed in green synthesis of nanoparticles. Hopefully this review serves as a useful reference for researchers and practitioners who are interested in employing the Citrus sinensis plant as a bioreductant in the green synthesis of nanoparticles.