การเตรีย ม แล ะ การศึกษาคุณลักษณ ะ ของถานกัมมันตจากไผตงและไผหมาจู PREPARATION AND CHARACTERIZATION OF ACTIVATED CARBON FROM

The objective of this work has conducted a research on the production of activated carbons from Dendrocalamus Asper Backer (DAB) and Dendrocalamus Latiflorus (DL) by chemical activation method. Activating parameters were carbonized temperature, breeds of bamboo (DAB and DL), ages of bamboos, activation reagents (H3PO4 and KOH), concentrations of activation reagents and activation times. The characterizations of activated carbon were studied by iodine number and scanning electron microscope (SEM). The 2-years DAB’s activated carbon, obtained from the 85 % H3PO4 activation for 4 hours, has the highest iodine number (615.84 mg/g). Bamboo is tropical plant and common in Thailand, China and Vietnam. The bamboo cane can be carbonized in a furnace at high temperatures in the absence of oxygen to produce carbon chars. The chars can be treated using chemicals and over range of temperatures to produce a selection of activated carbons for various uses. Bamboo based activated carbon can be expected to find uses a