FitriFarma, Rakhmawati2016-10-122016-10-122016-10-12wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/8683Research on syinthesis of activated carbon has been conducted from Eucalyptus pellita wood. Activated carbon was prepared by conventional carbonization. Chemical activation was conducted using the potassium hydroxide and assisted microwave irradiation. The mass ratio of carbon and KOH is 2:1. The samples were irradiated by microwave iradiation with various irradiation time of 10, 15, and 20 minutes with its output power of 630 watts. The physical properties of activated carbon were characterizated by Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray (EDX) and adsorption of methylene blue. SEM and EDX analysis showed the activated carbon are porous, furthermore the atomic percentage of the carbon was 78.27%. The irradiation time of 15 minutes resulted of the optimum methylene blue adsorption of 92.762 mg/g. The microwave irradiation times influenced the properties and qualities of the activated carbon.enEucalyptus pellitapotassium hydroxidemicrowave irradiationmethylene blue adsorptionstudent Paper Post Degree