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All Journal Eksergi: Chemical Engineering Journal
Dopinsa, Rexyvo Yurist Kusuma
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Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Adsorption of Rhodamine B by Coconut Shell Activated Carbon Siswanti, Siswanti; Dopinsa, Rexyvo Yurist Kusuma; Anggraita, Dwi
Eksergi Vol 22 No 3 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i3.15698

Abstract

Pollution caused by dye waste from the textile industry, specifically Rhodamine B, poses significant risks to human health. Furthermore, large-scale discharge of Rhodamine B into aquatic environments can alter water pH, thereby adversely affecting aquatic ecosystems. Environmental pollution caused by this dye can be prevented through adsorption using activated carbon. In this study aims to evaluate the efficiency of Rhodamine B dye removal from synthetic wastewater by varying the mass of activated carbon from coconut shell carbon and to determine the appropriate adsorption isotherm model based on the adsorption capacity of Rhodamine B on the adsorbent. The experiment was conducted by activating coconut shell carbon physically using a furnace at a temperature of 700℃ for 2 hours and chemically using 2.5 M KOH and soaked for 20 hours with a ratio of 1: 3 (m/v). The results of the study based on variations in adsorbent mass showed the best mass of 3 g with the smallest final concentration of 2.1717 ppm, an equilibrium time of 120 minutes, and an adsorption effectiveness of 86.13%. The appropriate adsorption isotherm model is the Langmuir isotherm.
Co-Authors Anggraita, Dwi Siswanti Siswanti