Preparation and Characterization of Leaves Activated Carbon
Abstract: Activated carbon is an adsorbent material widely used, and it has been the subject of much atten-tion to look for a kind of raw materials which has a multiple source and is easy to process. The leaves were used as raw materials to produce activated carbon. With the resource recycling, a preparation method of high performance activated carbon was also hoped to get. This study ana-lyzed the special surface area, micropore area and toluene adsorption capacity of leaves activated carbon by orthogonal test, and finally got the best preparation method: 50% mass fraction of H3PO4 and leaves in an impregnation ratio of 3:1 for 12 hours, and then in an activated temperature of 400˚C for 1 hour. And the result of characterization showed that the special surface area and the micropore area of leaves activated carbon were 774.4 m2/g and 148.2 m2/g, respectively, and the main structure of leaves activated carbon was mesopore. 95.3% of the functional groups in the activated carbon’s surface were the acidic functional groups, which mainly included alcoholic hydroxide groups and phenolic hydroxyl groups. The isoelectric point of the leaves activated carbon was 5.33.
文章引用: 杨加赢 , 赖文峰 , 张安平 , 孙建强 , 肖 航 , 方文杰 (2015) 树叶活性炭的制备及表征。 材料化学前沿， 3， 45-52. doi: 10.12677/AMC.2015.33005
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