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All Journal JRTI (Jurnal Riset Tindakan Indonesia)
I Gusti Agung Kade Suriadi
Industrial Engineering Department, Faculty of Engineering, Udayana University
Religion Humanities Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Superior microporous development in teak sawdust-derived activated carbon via N₂ activation for enhanced methylene blue uptake I Gusti Agung Kade Suriadi; Dewa Ngakan Ketut Putra Negara; Tjokorda Gede Tirta Nindhia; I Gusti Agung Ketut Chatur Adhi Wirya Aryadi
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 11 No. 1 (2026): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036804000

Abstract

This study investigates the effect of activation atmosphere (N₂ and CO₂) on the physicochemical properties and adsorption performance of teak sawdust-derived activated carbon for methylene blue removal. Carbonization was conducted at 750 °C followed by physical activation at 700 °C with a gas flow rate of 200 mL min⁻¹. Characterization results showed that N₂ activation produced a higher specific surface area and micropore volume compared to CO₂ activation, indicating more dominant microporous development. The N₂-activated sample exhibited superior adsorption uptake toward methylene blue under the tested condition (5 ppm), reaching 13.30 mg g⁻¹, while the CO₂-activated carbon showed lower uptake. The findings suggest that activation atmosphere strongly influences pore evolution and adsorption behavior. However, adsorption performance was evaluated at a single concentration; therefore, further isotherm and kinetic studies are required to determine the true maximum adsorption capacity and adsorption mechanism.
Co-Authors Dewa Ngakan Ketut Putra Negara I Gusti Agung Ketut Chatur Adhi Wirya Aryadi Tjokorda Gede Tirta Nindhia