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All Journal Journal of Degraded and Mining Lands Management Angkasa: Jurnal Ilmiah Bidang Teknologi Riau Journal of Empowerment Majalah Farmasetika Jurnal EK dan BI Jurnal Abdi Masyarakat Indonesia Medical Sains : Jurnal Ilmiah Kefarmasian Asian Journal of Community Services (AJCS) AMMA : Jurnal Pengabdian Masyarakat Medical Sains : Jurnal Ilmiah Kefarmasian Indonesian Journal of Science and Education
Achmad Gus Fahmi
Institut Teknologi Sumatera, Lampung
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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The Impact of Incorporating Biochar on the Development of Goethite Nanoparticles Produced via Precipitation Method Iwan Syahjoko Saputra; Achmad Gus Fahmi; Rifka Noor Azizah; Rina Andriyani; Anjar Hermadi Saputro; Ine Pebriyanti; Aluna Monalaika Izzati
Indonesian Journal of Science and Education Vol. 10 No. 1 (2026): Indonesian Journal of Science and Education (In Press)
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v10i1.2809

Abstract

This research explores a novel synthesis approach for goethite nanoparticles (Goe-NPs) due to the addition of biochar during goethite formation. This study investigated the effect of biochar addition on the Goe-NPs agitation process. Biochar was added on days 1, 7, 14, and 21 after reacting iron nitrate and base during agitation (30 days in 40 ℃). Based on the observation, the addition of biochar on day 14 (Goe-14d) has the smallest and most uniform particle size (±60 nm) compared to the addition of biochar on day 21 (Goe-21d) measuring about ±99 nm, and goethite synthesis without the addition of biochar (Goe-BLANK) measuring approximately >1000 nm. Functional group analysis using FTIR identifies all goethite produced from this synthesis method has an Fe-O6 octahedral lattice peak found at 642 cm-1 and Fe-O-H bending vibrations at 795 cm-1 and 889 cm-1 with varying intensity at each biochar addition time. The peak intensity of the Goe-NPs spectrum decreased when the growth of goethite particles was fully formed and agglomerated (>7 days of biochar addition). XRD analysis showed the crystal structure of Goe-NPs, with additional peaks indicating potential impurities from the formation of ferrihydrite because goethite was not fully formed. SEM images showed the effect of biochar addition on the unique particle size and morphology between Goe-NPs at biochar addition before day 7 and after day 7, indicating biochar can reduce agglomeration. This study demonstrates a promising new synthesis route for Goe-NPs using this biochar addition, with the potential to customise the size and type of goethite particles based on their growth time.
Co-Authors Aluna Monalaika Izzati Amelia Sri Rezki Angga Saputra Yasir Anjar Hermadi Saputro Apriansyah Julio Arirohman, Ilham Dwi Cecep Kusmana Devia Gahana Cindi Alfian Devia Gahana Cindi Alvian Erliza Noor Fahmi Sapta Hadi Farid Jayadi Hermawan, Dessy Hotdimas Simanjuntak Indah Puspita Sari Ine Pebriyanti Iwan Syahjoko Saputra Iwan Syahjoko Saputra Iwan Syahjoko Saputra Khoirun Naimah Kiki Yuli Handayani Lathifa Putri Afisna Muhammad Firmansyah Suherman Muhammad Khanafi Muhammad Syaukani Pathur Razi Ansyah Rery Tri Berliyanti Rico Aditia Prahmana Rifka Noor Azizah Rina Andriyani Siti Muslimah Suryaneta Tikarahayu Putri Zainal Abidin Zen, Muhammad Rizky