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Synthesis and Characterization of ZnO@SiO₂ Composite for Microwave Absorber Applications Fauzan, Muhammad; Bakti, Aditia Nur; Trivida, Elvina; Dewi, Nova Nur Elisa; Triyono, Djoko; Sugihartono, Iwan
Journal of the Physical Society of Indonesia Vol. 1 No. 2 (2025): October 2025
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.2.116-122.2025

Abstract

This study aims to synthesize ZnO@SiO₂ composites via biosynthesis using Moringa oleifera leaf extract and to investigate the effect of different SiO₂ contents (pure ZnO, 1%, 3%, and 5% by weight) on their structural and microwave absorption properties, with ZnO prepared from a Zn(NO₃)₂·4H₂O precursor and calcined at 450 °C for 2 hours. The synthesized samples were characterized using X-ray Diffraction (XRD) and a Vector Network Analyzer (VNA). XRD results confirmed that all samples exhibited a hexagonal wurtzite crystal structure with space group P6₃mc and showed no secondary phases. The crystallite size decreased with increasing SiO₂ content, indicating nanoparticle formation and reduced crystallinity. VNA measurements showed that the ZnO@SiO₂ sample with 3% SiO₂ exhibited the best microwave absorption performance, with a minimum reflection loss (RL) value of –2.0251 dB at a frequency of 6.125 GHz. These results suggest that the 3% composition achieved better impedance matching and enhanced absorption efficiency.
Co-Authors Abdilah, Yusup Achmad Ainul Yaqin Achmad Ainul Yaqin Achmad Ainul Yaqin Achmad Ainul Yaqin Achmad Ainul Yaqin Achmad Jalil Ade Lina Permata Ade Lina Permatasari Ade Lina Permatasari, Ade Lina Adhyatma Alamsyah Adinda Salsabila Khansa Aditia Nur Bakti Affi Nur Hidayah Aga Noputro Sekartaji Agus Setyo Budi Akhmad Futukhillah Fataba Alaih Al Hasanah, Halimah Alaih, Akhmad Futukhillah Fataba Ali Sabeni Alief Restu Alief Restu Alief Restu, Alief Alifia Nurul Hasanah Alimah, Niken Uswatun Aliyah, Nada Alfi Amalia Dini Silmina Amaliya, Septiana Tri Amanda Larasati Andi Gunawan Anggara Budi Susial Anggara Budi Susila Anggie Anastasya Anggoro Budi Susila Anindita Prameswari Safitri Anisah Fauziyyah Annete Gabriella Nuraliya Annisa Feby Nur Rahmasari Annisa Nurul Aini Aris Sunawar Artoto Arkundato Arymbekov, Beken Assita Wahyu Andiani Aulia Putri Azzahra, Ridha Octa Alhuriyyah Bagus Ksatriotomo Bagus Ksatriotomo, Bagus Bambang Heru I Bambang Heru I, Bambang Heru Bambang Heru Iswanto Bambang Soegijono Bayyinah Bernadus Herdi Sirenden Bintang Ramadhan Budhy Kurniawan Cassia, Diva Cuk Imawan Cyrilla, Shafa Rahma Dadang Wihana Destiana Rachmawati Desy Mekarsari Devi Anggraheni Dewi, Nova Nur Elisa Diajeng Ramadhan Dika, Sabna Tamara Djatmiko, Wisnu Djoko Triyono Dona Dianisya Dwi Septiani Efelina, Vita Eko Andri Eko Andri Endah Purwanti Endah Purwanti Erfan Handoko Esmar Budi Esmar Budi Esmar Budi Esmar Budi Esmar Budi Esmar Budi Esmar Budi Esmar Budi Esmar Budi esmar Budi Esmar Budi Esmar Budi Fathir Fajar Sidiq Fathiyyah Husna Sulaiman Fauzia, Vivi Febriana Yunhas Putri Febriani, Immanuella Senja Dwi Febyana Nur Aliffah Febyana Nur Aliffah Fera Kurniadewi Ferdiansyah Faturachman Achmad Ferdy Alfian Indra Prasetya Firmanul Catur Wibowo Fitri Ayu Sundari Fitri Sakinah Fitrianto Nugroho Fitrianto Nugroho, Fitrianto Fitriyani, Vivi Gaguk Jatisukamto Gita Putri Isyafiani Grace Natalia Grace Natalia Hadi Nasbey Hadi Paramu Haris Suhendar Heriyanto, Yayat W. Heru Iswanto, Bambang I Made Astra I Made Astra I Made Astra I Made Astra Imam Basori Iman Safari Immanuel Bobby Indah Langitasari Indarwati, Siti Hastin Nur Indra Permana Indri Sari Utami Inggrid Ayu Putr Irzan Zakir Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Iwan Setiawan Jack Luhukay Jack Luhukay Jack Roland Luhukay Jackqluine Aprilia Victoria Jamaludin, Jaja - Jati Ningsih, Siska Miati Kuriah, Yayah Laelatul Dalilah Lailatu Syifa Fadilah Lanny Catherine Lara Permata Sari, Lara Permata Leli Kusumawati Lory Inggi Luhukay, Jack Roland Lutfi Rohman M Ikrar Ramadhan M. Hikam M. Hikam M. Iqrar Ramadhan, M. Iqrar Mangasi Alion Marpaung Marliana Candra Kartika Mas Ayu Yuliana Mashaler Suradam Mashaler Suradam Mashaler Suradam Maykel Manawan Misto Misto Mohar, Rahmat Setiawan Muarief Muarief Muarief Muarief Muarief Muarief Muarief Muarief, Muarief Mudammirotul Ashnam Mudmainah Vitasari Muflih, Abdullah Mu’adz Muhammad Fajar Setiawan Muhammad Fajri Zetra Muhammad fauzan Muhammad Rishadi Muhammad Salman Al Faridz Muhammad Yusuf Nadia Istiqomah Natasya Frysilia Wardanni Natasya Frysillia Wardani Nayla Ananda Putri Alisati Novan Purwanto Nur Indah Puspita Nurfina Yudasari Osi Arutanti Putri Lidya Sari Putri Lidya Sari Rafi Rizky Rabbani Rafiudin, Rafiudin RAHARJO Raharjo Raharjo Rahmat Setiawan Mohar Rania Virda Sukmaningsih Refriani Pebria Refriani Pebria, Refriani Reni Rahmadewi Resti Alfianda Ridha Octa Alhuriyyah Azzahra Rifki Reinaldo Rifki Reinaldo Rio Dwi Pambudi Riris Purbosari Riser Fahdiran Rita Amalia Huljannah Rizqon Priyotomo Rizqon Priyotomo, Rizqon Rustana, Cecep E Safitri, Ernik D. Safta Sabrina Santa Melenia Putri Sinaga Sarkadi, Sarkadi Selvi Puspita Dewi Setia Budi Setia Budi Shafa Rahma Cyrilla Sifa Alfiyah Sifa Alfiyah Siti Chaerijah Aurijah Soewoto, Haswi Purwandanu Solihatin, Etin Soraya, Sofiyan Sugiamma Sunaryo Sunaryo Sunaryo Sunaryo Syawal Adrian Syah Syeha Lutfiah Tan Swee Tiam Teguh Budi Prayitno Tiam, Tan Swee Tiawati, Nia Tri Bambang A. K. Tri Bambang AK Trivida, Elvina Triyono, Djoko Ulfah Zuhaeriah Vita Efelina Vivi Fitriyani Widyaningrum Indrasari Windrawan, I Gede Wisnu Purno Aji Wisnu Purno Aji, Wisnu Yani Oktaviani Yaqin, Achmad Ainul Yasnita Yasnita Yayah Kuriah Yayat W. Heriyanto Yudasari, Nurfina Yuli Rahmawati Yulia Ermadiana Yuliana Yuliana Zahra Anjani Zahroh, Fitriana Faizatu