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Journal : Science and Technology Indonesia

Corn-Cob-Waste-Based Fe2.75Mn0.25O4/rGO Nanocomposite Application as Anti-Radar Coatings Saefullah, Lalu; Kormil Saputra; Wida Puteri Agista; Masruroh; Dionysius J. D. H. Santjojo; Istiroyah
Science and Technology Indonesia Vol. 9 No. 4 (2024): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.4.798-805

Abstract

Radar-absorbent materials (RAMs) have become essential technologies in fields that require them, such as the military. Their working principle is that they absorb electromagnetic waves and prevent their reflection. In developing the manufacturing of RAMs, high-performance materials are needed for effective use as RAMs. In general, RAMs possess two essential properties: magnetic and dielectric. This research reports the author’s successful synthesis of an Fe2.75Mn0.25O4/rGO nanocomposite as an anti-radar material using the coprecipitation method. Interestingly, the main precursors used were natural materials, namely iron sand and corn cob waste. XRD, FTIR, and SEM-EDX characterized the research samples to determine the nanocomposite’s structure and phase, functional groups, and morphology after doping. XRD characterization results showed that Fe2.75Mn0.25O4/rGO nanoparticles had a cubic crystal structure and that there were no new peaks, which indicates that Mn had been successfully substituted into Fe. FTIR test results showed that the Fe2.75Mn0.25O4/rGO nanocomposite had Mn and Fe-O functional groups in octahedral and tetrahedral positions at wave numbers of 418 480 cm-1 and that there were C=C functional groups at the wave number of 1629 cm-1. SEM results showed that the nanocomposite comprised Fe2.75Mn0.25O4/rGO particles in agglomerated spheres and corn-cob-based rGO in sheet form, with a grain size of around 26–31 nm. EDX test results showed the appearance of Fe, Mn, O, and C elements. It was also found that the 3-mm-thick Fe2.75Mn0.25O4/rGO nanocomposite sample achieved the highest reflection loss (RL) value of -43.6 dB at a frequency of 8.5 GHz, indicating a significant radar wave absorption capability.
Co-Authors Abdul Ghofar Adeya Ilma Permana Afriyani, Luvi Dian Afriyani agil ayu sabila Agustina, Ajeng Ainun Nazilah Alfian Nor Muthia Sarie Alfina Damayanti ALI SORMIN, MUHAMMAD ALI SORMIN Alifia Jumeisya Setyawan Alya Fernanda Khairani Ana Farida Ulfa, Ana Farida ANA ISTIANA Ana Riandari Andriani, Tithin Anggi Anggraeni, Sovia Puspita Anissa Regita Any Sugesti Aridhina Yunita Rahma Aris, Ayub Pratama Armada, Ade Asmida Erliana Simatupang Asyiyah, Siti Audina, Yordania Vitax Aulia, Mardianita Ayatullah Sadali Ayu Ismi Hanifah Azizah, Luthfi Nur Bunga Asmara Nugra Cahyaningrum Calesta, Verga Friscyla Chusnul Oktaviana Rachmawati Citra Alif Lia Elliana Arianti Dewi, Kiki Rosita Dian Cahya Putri Diana Novitasari Dianatul Mustafidah Dionysius J. D. H. Santjojo Dwi Prasetyorini Dwi Yuniar Billy Canser Eka Sularsih elviatun nisa, risha nur Enjes Sita, Sang Ayu Putu Eny Lutfiyah Erlangga, Adhitian Deva Eva Desita Sari Evania, Irma Fatichatus Sa’diyah fatimah, nur fatimah Ferdiansyah, Irfan Firdaus, M. Fulaisum Fitariani, Selvia Fitria Herawati, Fitria FITRIYAH Galih Satriyo Hutomo Hapsari Windayanti Haque, Elva Hidayatul Hartini Hartono, Arif Hendri Hermawan Adinugraha Herin Mawarti Hidayansya, Taufik Hidayaturrahmah Husnul Hotimah, Husnul Ianatussoleh Ilham Apri Imam Wahyu Pratama Imroatul Islamia Islamia, Imroatul Isni, Fitri Istiroyah Iswati, Dian Dwi Jaya, Asrul Jumiati KIKI SEPTARIA Komalasari, Tuti Kormil Saputra Kurnia Pratiwi Kurniawati Kusumawan, Ardie Luaily, Anjaliatul Lujeng Muliyati Lusiana Shinta Dewi Lutfianto, Mohammad M. Jauhar Ali Mahfudoh Maryam Bte Badrul Munir Maryanti Mauladi, Kemal Farouq Maulana Ibrahim Mawaddah Miftahul Jannah Modanggu, Intan moh sholeh, moh Moneca Dyah Listiyaningsih Mudrikah Mufti Lathif Muhdia Mukhoyyaroh, Nur Indah Musdalifah Nafa Nofitasari NASRUDIN Nikke Agustina Pratiwi Ninsafitri Norna Amalia Sholeha Nova Oktaviani Novadhila Purwaningtyas Nur nafi'iyah Nurhidayatulloh, Farkhan Pambudi, Moch Rio Permana, Aang Panji Pranoto, Heni Pratama, Moh. Iqbal Liayong Puji Catur pujiani Puput Putri Apriliyani Purnamawati, Anni Muslimah Putri, Risma Aliviani rahayu, nisfia lika rahayu Rahmawati, Mamik Rahmawati, Nurhalizah Sugi Renny Anjelina Rifky Aisyatul Faroh Ryan Nabela Maha Rani Saefullah, Lalu Sasminaryati Savitra, Tri Anjani Septiari Candra Puspitasari Shinta Lutfiani Sidarti P.T intan Surullah Sintia Pagirik Siti Apriyati Siti Ayu Masthuroh Siti Muniroh Soendari Sri Mulyani Sri Renita Utami Sri Sulistyani1 Suryani, Atika Rizki Susiani Heny Sutrisnawati Syaiful Anwar Syaiful Hadi Titis Dwicahya Prabaningrum Ulul Ilmi Vanisa Veftisia, Vistra Venny Thrissia Regitha Cahya Wahyu Indah Lestari Wahyu Kristiningrum Waslikha, Siti Watmawati Wida Puteri Agista Widada, Dharma Widayati Widda A Widya Yunita Ariani Wijaya, Revaldo Rangga Putra Aji Yamba kodi, Elvira Yaumil Agustine Yudi Yuliance Kabak YUNITA Yunita Fajarwati Zulfikar Zuliani