期刊
CHEMICAL ENGINEERING JOURNAL
卷 166, 期 1, 页码 191-197出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2010.10.061
关键词
Activated carbon; Pistachio shell; Chemical activation; Salt
Activated carbons having high surface area were produced from pistachio shells that were chemically activated using zinc chloride at room temperature and then activated in carbon dioxide gas that was saturated in water vapor. The surface area and pore structure of activated carbon produced from pistachio shells were investigated depending on the amount of chemical activating reagent, activation temperature, duration time in the reagent solution and the kinds of activation reagent. In this study, a method, which provides activated carbons having the highest surface area was developed. As a result, the activated carbon produced from pistachio shells treating with 40% ZnCl2 then with 40% HCl in room temperature and then activated at 900 degrees C for 90 min has 3256 m(2)/g of BET surface area and 3822 m(2)/g of DR surface area and 1.36 cc/g of DR micropore volume. It was found that the activated carbon produced from pistachio shells treated 40% of sodium chloride and activated at 900 degrees C for 90 min has 3895 m(2)/g of BET surface area and 5235 m(2)/g of DR surface area and 1.86 cc/g of DR micropore volume. (C) 2010 Elsevier B.V. All rights reserved.
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