Abstract
As biomass waste, sappan wood after dye extraction was used as precursor to formulate a new adsorbent activated carbon (AC) preparation by phosphoric acid activation. The activation process was performed at different temperatures. Morphology of AC was determined using scanning electron microscopy (SEM). Porosity characterization of AC was conducted by using N2 adsorption-desorption in order to characterize properties like pore volume, surface area. Experimental results showed that maximum AC surface area and pore volume were 1355.41 m2/g and 0.710 cm3/g. Activation temperature was revealed to be 600 °C, with chemical impregnation ratio of a precursor to phosphoric acid equal to 1:2. In addition, the adsorption behavior of AC was also investigated, and it could adsorb Brilliant blue RV, Acid red 2B and Acid blue R from waste water fast and effectively, highlighting its potential application for environmental issues.
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