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All Journal Journal of Climate Change Society Journal of Experimental and Applied Physics
Jhora, Fadhila
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Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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Analysis of Electrical Properties of Fe3O4/Graphene Oxide Nanocomposites Synthesized from Corn Cob Waste Febri Zola, Nadira; Hidayat, Rahmat; Gusnedi, Gusnedi; Jhora, Fadhila
Journal of Climate Change Society Vol. 2 No. 1 (2024)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol2-iss1/28

Abstract

In this era of globalization, the needs of society continue to increase along with technological advances. The more sophisticated the technology, the higher the demand for electricity and energy storage. The energy storage medium that is widely used today is lithium batteries. But because the price of lithium batteries is quite high, the solution to overcome the high price of lithium batteries is to replace lithium battery electrodes with carbon-based materials such as Graphene Oxide. Graphene Oxide can be made from biomass waste, one of which is corn cob waste
Effect of SiO2/Chitosan Composition Variation on Functional Groups in Hydrophobic Cellulose Paper for Water/Oil Separation Almunazar, Fauziyah; Ratnawulan, Ratnawulan; Darvina, Yenni; Jhora, Fadhila
Journal of Experimental and Applied Physics Vol 3 No 1 (2025): March Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i1.90

Abstract

The current research is conducted to study the effect of varying compositions of SiO2-Chitosan on the changes occurring in the functional groups available in cellulose paper that shows hydrophobic nature, which can be used for water and oil separation purposes. The composite layer studied is the silica-chitosan solution coated over the cellulose paper using the dip-coating method. Varying compositions of SiO2-chitosan studied are (0.6g:0.3g), and (0.3g:0.6g). Characterization by FTIR revealed the presence of the main functional groups, i.e., Si-O-Si, C-H, C-O, N-O, N-H, C-N, and O-H, with a range of 938-3784 cm⁻¹ strain. The identification of these functional groups attests to the incorporation of the SiO2-chitosan compound on the surface of the cellulose paper. This functionalization imparted a hydrophobic layer, as demonstrated by the capacity of each composition to cause the characteristic spectrum of the SiO2-chitosan compound. The results of this study confirm that the modification of SiO2-Kitosan composition has significant influences on the chemical properties and physical stability of the composite coating. This result explains the great potential of cellulose-based materials in water and oil separation technology. In addition, these results enable the development of sustainable materials with great efficiency in fluid separation applications.
Co-Authors Almunazar, Fauziyah Febri Zola, Nadira Gusnedi Gusnedi Rahmat Hidayat Yenni Darvina