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Preparation of Activated Carbon from Juvenile Durian Fruit by Activating KMnO4 for Methylene Blue Adsorption

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Abstract:

Preparation of activated carbon from juvenile durian fruit by activation with KMnO4 for methylene blue adsorption was studied. The juvenile durian fruit was pyrolyzed at temperatures of 400, 450, 500, 550, and 600 °C and activated with KMnO4. The results demonstrated that the carbonization at 600 °C yielded the highest iodine number of 298.30 mgiodine/gbiochar. Subsequently, the methylene blue adsorption was investigated using a Box-Behnken designed batch experiment. The experimental design included three variables at three levels: adsorbent dosage (g), initial methylene blue concentration (mg/L), and adsorption time (min). The optimum conditions for methylene blue adsorption efficiency reached approximately 99.9% at an adsorbent dosage of 0.55 g, an initial methylene blue concentration of 10 mg/L, and an adsorption time of 90 min.

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Periodical:

Key Engineering Materials (Volume 1052)

Pages:

65-70

DOI:

https://doi.org/10.4028/p-0ctNXH

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Online since:

May 2026

Authors:

Pornsawan Assawasaengrat*, Wasan Chokelarb, Woatthichai Narkrugsa, Pongsert Sriprom

Keywords:

Activated Carbon, Juvenile Durian Fruit, Methylene Blue Adsorption

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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