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All Journal Jurnal Jejaring Matematika dan Sains Molekul: Jurnal Ilmiah Kimia
Annas, Dicky
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Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology Mathematics Physics

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Sintesis dan Kararkterisasi Modifikasi Mikropartikel Magnetit (Fe3O4) Dalam Pemanfaatan Karat dengan Ekstrak Daun Ilalang (Imperata Cylindrica L): Synthesis and Characterization of Modified Magnetite Microparticles (Fe3O4) in Rust Utilization with Leaf Extract of Grass (Imperata cylindrica L) Siti Zulaicha, Annisaa; Syahjoko Saputra, Iwan; Puspita Sari, Indah; Annas, Dicky
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.405

Abstract

The synthesis of magnetite (Fe3O4) microparticles has been successfully carried out using rust and leaf extract of grass (Imperata cylindrica L). The purpose of this research is the synthesis and characterization of Fe3O4 microparticles using the Green Synthesis method. The UV-Vis results showed that the absorption peak was at a wavelength of 273 nm with an absorbance value of 0.75. FTIR analysis shows the shift of the peak at wave number 3356 cm-1 to 3290 cm-1 and the appearance of a new peak at wave number 500 cm-1 which is characteristic of the Fe-O-Fe functional group and indicates the formation of Fe3O4 microparticles. XRD results showed six specific peaks, which were crystallinity of Fe3O4 microparticles at position 2 theta 30.40 °, 35.70 °, 43.30 °, 53.80 °, 57.40 °, and 63.00 °. PSA analysis showed that the mean particle size was > 100 nm, and the PZC results showed a zeta potential of 20 mV. SEM results showed the morphology of Fe3O4 microparticles with 1000x magnification, and EDS analysis results showed Fe and O's elemental composition.
Sintesis dan Kararkterisasi Modifikasi Mikropartikel Magnetit (Fe3O4) Dalam Pemanfaatan Karat dengan Ekstrak Daun Ilalang (Imperata Cylindrica L): Synthesis and Characterization of Modified Magnetite Microparticles (Fe3O4) in Rust Utilization with Leaf Extract of Grass (Imperata cylindrica L) Siti Zulaicha, Annisaa; Syahjoko Saputra, Iwan; Puspita Sari, Indah; Annas, Dicky
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.405

Abstract

The synthesis of magnetite (Fe3O4) microparticles has been successfully carried out using rust and leaf extract of grass (Imperata cylindrica L). The purpose of this research is the synthesis and characterization of Fe3O4 microparticles using the Green Synthesis method. The UV-Vis results showed that the absorption peak was at a wavelength of 273 nm with an absorbance value of 0.75. FTIR analysis shows the shift of the peak at wave number 3356 cm-1 to 3290 cm-1 and the appearance of a new peak at wave number 500 cm-1 which is characteristic of the Fe-O-Fe functional group and indicates the formation of Fe3O4 microparticles. XRD results showed six specific peaks, which were crystallinity of Fe3O4 microparticles at position 2 theta 30.40 °, 35.70 °, 43.30 °, 53.80 °, 57.40 °, and 63.00 °. PSA analysis showed that the mean particle size was > 100 nm, and the PZC results showed a zeta potential of 20 mV. SEM results showed the morphology of Fe3O4 microparticles with 1000x magnification, and EDS analysis results showed Fe and O's elemental composition.
Molecular Vibration and Physicochemical Performance of Proton-Conducting Solid Polymer Electrolyte Membrane based on CMC/PVA/CH3COONH4 Ndruru, Sun Theo Constan Lotebulo; Rachmadhanti, Elvira Nur; Fridarima, Shanny; Berghuis, Nila Tanyela; Prasetyo, Ridho; Yulianti, Evi; Hayati, Atika Trisna; Adriana, Risda; Siregar, Rabiyatul Adawiyah; Sofyan, Muhammad Ihsan; Sampora, Yulianti; Annas, Dicky; Madiabu, Muhammad Jihad
Molekul Vol 19 No 3 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.3.11001

Abstract

This work studied examined the influence of ammonium acetate (CH3COONH4) on CMC/PVA-based solid polymer electrolyte (SPE) membranes, focusing on molecular vibration, proton conductivity, and physicochemical properties. SPE membranes were prepared via the casting solution method with varying CH3COONH4 concentrations to determine the optimal proton conductivity. Various characterizations, including FTIR, EIS, XRD, and TGA, were performed. The optimal membrane condition was achieved with 10 wt-% CH3COONH4 in the CMC/PVA (80/20) blend, yielding proton conductivity of 3.93×10⁻⁴ S/cm and favorable mechanical, thermal, and crystallinity properties, making it suitable for proton-conducting polymer applications. Keywords: ammonium acetate, carboxymethyl cellulose, ionic conductivity, poly(vinyl alcohol), proton battery, solid electrolyte membrane
Co-Authors Adriana, Risda Berghuis, Nila Tanyela Evi Yulianti Fridarima, Shanny Hayati, Atika Trisna Indah Puspita Sari Madiabu, Muhammad Jihad Ndruru, Sun Theo Constan Lotebulo Prasetyo, Ridho Puspita Sari, Indah Rabiyatul Adawiyah Siregar Rachmadhanti, Elvira Nur Sampora, Yulianti Siti Zulaicha, Annisaa Sofyan, Muhammad Ihsan Syahjoko Saputra, Iwan