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Bamboo pyrolysis was carried out at a temperature of 400°C for 4 hours to obtain a carbon as a pyrolysis product. The carbon soaked using potassium hydroxide (KOH) 5.35 M for 24 hours. The carbon obtained heated in a reactor at a temperature of 800°C for 5 hours then washed and neutralized until activated carbon obtained. The characterization of activated carbon conducted based on the Indonesian National Standard (SNI 06-3730-1995). The methylene blue adsorption process using a concentration of 50, 100, 150, and 200 ppm for 120 minutes reaction with the contact time variation are 30, 60, 90, 120,150, and 180 minutes in optimum concentration. The result shows that activated carbon has good quality based on SNI 06-3730-1995. The optimum methylene blue removal by bamboo activated carbon reached 99.77% in 120 minutes reaction and the adsorption type follows Langmuir isotherm.

The activated carbon produced from mayan bamboo (Gigantochloa robusta Kurz) and its application as dye removal