Preparation of Activated Carbon with Developed Mesoporous Structure from Camellia oleifera Shell by Water Vapor Gasification and Phosphoric Acid Modification
Activated carbon with developed mesoporous structure was prepared using Camellia Oleifera shell as a starting material by water vapor gasification and phosphoric acid modification It was found that this method was great effective on increasing the mesoporous ratio of activated carbon. The micoporosity of activated carbon gasified by water vapor (raw activated carbon) acts as channel for phosphoric acid impregnation to enlarge the pore size. Results of the activated carbon modified by phosphoric acid (final activated carbon) showed that a high mesoporous ratio with 61％ (2 times as high as that of raw activated carbon). The BET surface area and total pore volume of the activated carbon through modification step were increased, to 1608 m2/g and 1.17 cm3/g, respectively, and high adsorption capacity for methylene blue and iodine were also obtained. The value of methylene blue and iodine were increased from 180 mg/g to 330 mg/g, 1012 mg/g to 1326 mg/g, respectively. The present preparation method is a promising, convenient way to combine gasification and modification to obtain mesoporous activate carbon.
activated carbon mesoporous structure gasification modification
Kang SUN Jian-chun JIANG Dan-dan CUI
Institute of Chemical Industry of Forest Products, CAF 210042, Nanjing，China
国际会议
南京
英文
372-376
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）