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All Journal VALENSI Jurnal Agroteknos Jurnal Sains dan Teknologi Pangan Science and Technology Indonesia Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Biofiskim: Pendidikan dan Pembelajaran IPA Science and Technology: Jurnal Pengabdian Masyarakat Indonesian Journal of Green Chemistry
Mashuni Mashuni
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Haluoleo University (UNHALU), Kendari, Sulawesi Tenggara, 93231
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Physics Social Sciences Other

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A Review on Carbon Materials Derived from Biomass Pyrolysis for Supercapacitor Applications Hamid, Fitri Handayani; Yunita, Kurnia Sri; Mashuni, Mashuni; Jahiding, M; Hasan , Erzam S
Indonesian Journal of Green Chemistry Vol. 2 No. 1 (2025): April
Publisher : Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ijgc.v2i1.356

Abstract

Carbon-based materials are solid carbon enriched with carbon, produced through thermochemical processes such as pyrolysis. However, unmodified and unactivated carbon materials obtained from low-temperature pyrolysis of biomass show poor performance in energy storage applications due to their unsuitable physicochemical and electrical properties, such as low surface area, inadequate pore structure, and low density and conductivity. To improve the properties of carbon, surface modification and activation are applied to enhance carbon's surface features and structure, resulting in better electrochemical performance. Various activation methods are used to modify the surface properties of carbon, making it more suitable for supercapacitor applications. This review provides a comprehensive overview of carbon activation techniques, focusing on their effects on physicochemical and electrical properties and their potential use as supercapacitor electrodes. The article also highlights existing research gaps and suggests directions for future development.
Chemical Characterization and Antibacterial Activities of Bio-oil from Durian Shell Pyrolysis Mashuni, Mashuni; Kadidae, La Ode; Jahiding, M; Hamid, Fitri Handayani; Kadir, Waris Abdul; Khaeri, Andi Muhammad Naufal
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.37674

Abstract

Foodborne bacteria cause food spoilage, usually Staphylococcus aureus and Escherichia coli. Thus, synthetic preservatives are employed in food preservation to prevent food spoilage caused by microorganisms. Excessive use of synthetic preservatives can cause disease. Bio-oil has become a natural preservative because of its high phenolic content. However, bio-oil still requires purification because the initial bio-oil (grade 3) still contains carcinogenic compounds that are dangerous for consumption. Therefore, this study aims to determine the components of the bio-oil compound after purification and its effectiveness as an antibacterial. Durian shell (DS) is pyrolyzed in a heating reactor without oxygen at a temperature of 330–600ºC (flow rate 6ºC/minute) with a 2-3 cm material size. Furthermore, bio-oil purification includes stages of filtration using activated zeolite, fractional distillation at 70–200ºC (grade 2), and filtration using activated charcoal (grade 1). Bio-oil purification includes stages of filtration using active zeolite and activated charcoal (grade 2), and fractional distillation at a temperature of 150–200ºC (grade 1). Based on Gas Chromatography-Mass Spectrometry (GC-MS) analysis, grade 2 and grade 1 contain the major compounds 1,4-dimethyl-1h-imidazole and acetic acid. The research showed that bio-oil grades 1 and 2, when used at a 30% concentration, exhibit antibacterial strong effects against Staphylococcus aureus and Escherichia coli. These findings suggest that bio-oil grades 1 and 2 could be valuable natural preservatives.
Co-Authors Adman, Finkyasti Nur Alham, Alham Alimin Alimin, Alimin Amal, Della Ardana Anjani, Ika Ansharullah ansharullah Askama, Sitti Budy Wiryawan Darwin Ismail Fahyuddin Fahyuddin, Fahyuddin Halimahtussaddiyah, Halimahtussaddiyah Hamdana, Renaldi Handayani Hamid, Fitri Hasan , Erzam S Jahiding, M Kadir, Waris Abdul Khaeri, Andi Muhammad Naufal La Agusu, La Agusu La Ode Kadidae, La Ode M. Jahiding, M. Muhamad, Fadel Munirwan Zani, Munirwan Rahmayanti Rahmayanti Reski Awaliah, Reski Riskania, Novi Nur Ritonga, Halimahtussaddiyah Sanawing, Hasniar Sitti Ilmawati, Wa Ode Sri Wahyuni Yunita, Kurnia Sri