Preparation of activated carbon from a renewable agricultural residue of pruning mulberry shoot

文献类型： 外文期刊

第一作者： Wang, Jun

作者： Wang, Jun;Wu, Fu-An;Wang, Meng;Qiu, Ning;Liang, Yao;Fang, Shui-Qin;Jiang, Xing;Wu, Fu-An

作者机构：

关键词： Pruning mulberry shoot;activated carbon;preparation;chemical activation

期刊名称：AFRICAN JOURNAL OF BIOTECHNOLOGY （ 影响因子：0.573； 五年影响因子：0.794 ）

ISSN： 1684-5315

年卷期： 2010 年 9 卷 19 期

页码：

收录情况： SCI

摘要： In this study, element composition of pruning mulberry shoot was evaluated by element analysis. On the basis of this, pruning mulberry shoot-based activated carbon was prepared from by chemical activation with phosphoric acid (H(3)PO(4)), which particles were displayed by the scanning electron microscope (SEM) micrographs. The influence of impregnation temperature, impregnation ratio, H(3)PO(4) concentration, pyrolysis temperature, and pyrolysis time on the iodine adsorption capacity and yield of the prepared activated carbon were investigated and discussed. Results showed that, pruning mulberry shoot is a good and cheap agricultural residue for the production of activated carbon, with carbon, hydrogen and nitrogen contents of 44.58, 6.37 and 1.45% (w/w, dry basis), respectively. With an impregnation temperature of 80 degrees C, an impregnation ratio of 2: 1 (v/w), a H(3)PO(4) concentration of 50%, an pyrolysis temperature of 500 degrees C, and an pyrolysis time of 2 h, the activated carbon with better iodine adsorption capacity and yield were 887.35 mg/g and 38.12%, respectively. SEM experimental results indicated the potential use of pruning mulberry shoots as a precursor in the activated carbon preparation process, thus, representing an economically promising material.

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