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All Journal Komunikasi Fisika Indonesia Phi : Jurnal Pendidikan Fisika dan Terapan Jurnal Fisika Unand Jurnal Sains & Teknologi Lingkungan Jurnal Fisika FLUX Jurnal Rekayasa Material, Manufaktur & Energi JOURNAL OF SCIENCE AND SOCIAL RESEARCH Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Jurnal Pengabdian kepada Masyarakat Nusantara Navigation Physics : Journal of Physics Education CHEDS: Journal of Chemistry, Education, and Science Phydagogic : Jurnal Fisika dan Pembelajarannya Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan EINSTEIN (E-JOURNAL)
Lubis, Ridwan Yusuf
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Aerospace Engineering Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Journal : Jurnal Sains

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Karbon Aktif Kulit Bawang Merah (Allium ascalonicum) untuk Mereduksi Bilangan Asam dan Peroksida: Indonesia Lubis, Ridwan Yusuf; Insani, Rizki; Husnah, Miftahul; Silalahi, Ali Affan
Jurnal Sains & Teknologi Lingkungan Vol. 18 No. 1 (2026): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol18.iss1.art3

Abstract

Activated carbon is one of the adsorption materials commonly used to improve the quality of used cooking oil. This study aims to determine the effect of varying concentrations of phosphoric acid (H₃PO₄) as a chemical activator on activated carbon derived from red onion peel. The research data were expressed quantitatively through physical and chemical characterization, while the results of color and odor tests were presented descriptively. Activated carbon from red onion peel was successfully produced through physical activation (400 °C) and chemical activation (H₃PO₄) with concentration variations A (8%), B (12%), C (16%), and D (20%). The characterization results showed a decrease in moisture content, ash content, and volatile matter content, while the carbon content increased. Sample D met the requirements of SNI 06-3730-1995 for all physical and chemical characteristics. An increase in adsorption ability for acid value was observed in line with the increase in activator concentration. The ability to reduce peroxide value decreased in samples C and D compared to sample B, but still met the SNI 3741:2013 standard. The most optimal characterization and adsorption performance were obtained in sample D, with an acid value of 0.33% (mg KOH/kg) and a peroxide value of 8 (meq O₂/kg).
Co-Authors ., Masthura Abdul Halim Daulay Amalia, Fadiah Nur Arnydhinata, Ella Basri Btr, Mhd Hasan Br Situmorang, Dinda Agelia Cahyani, Rahmatika Fitri Della Damayanti, Della Fazira, Natasya Aulia Hakim, Ibnu Harahap, Balkis Br Insani, Rizki Jumiati, Ety Khairunnisa, Umi Khairunnisa Lenni, Nurma Lubis, Hilwa Salsabila Mahyuda, Maulana Masthura Miftahul Husnah Nasution, Fajar Siddik Nasution, Mutia Fadilah Nasution, Nazaruddin Natasya, Kinanty Desiva Noviansyah, Kiki Nurlisa, Siti Putri, Eka Julia Rambe, Khoirunnisa Fadila Ratni Sirait, Ratni Safina, Nurul Sariah, Jati Nur Silalahi, Ali Affan Sirait, Ratni Sirait Siti Khairani Sinaga, Siti Khairani Sitompul, Yusril Padli Syahrani, Vania Retna Tiara, Finky Manda