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高吸附性能木质活性炭的研究——Ⅱ.高吸附性能木素活性炭结构研究
STUDY ON THE HIGH ADSORPTION PROPERTY WOODEN ACTIVATED CARBON Ⅱ . STRUCTURE OF THE HIGH ADSORPTION PROPERTY ACTIVATED CARBON FROM LIGNIN
【摘要】 本文用吸附等温线、孔径分布、x-ray衍射及TEM法对高吸附性能木素活性炭(比表面积分别为S_L=3831m~2/g;S_L=4004m~2/g)进行了研究。结果表明,此活性炭的孔结构均匀性好,是一种不含石墨微晶的“笼形”准分子筛结构,其碳原子为SP~2杂化。
【Abstract】 The high adsorption property activated carbon from lignin (specific surface area SL = 3831m2/g and SL = 4004m2/g) has been studied with adsorption isotherm, pore size distribution, x-ray diffraction and TEM. The results showed that the pore structure of these activated carbons is uniform with a characteristic cage-like semi-molecular sieve structure without microcrystals of graphite. The carbon atoms in these activated carbons are in an SP3 hybrid state.
【关键词】 活性炭;
木素;
吸附等温线;
孔径分布;
x-ray衍射;
TEM;
【Key words】 Activated carbon; Lignin; Adsorption isotherm; Pore size distribution; X-ray diffraction; Trans- mission electron micrograph(TEM);
【Key words】 Activated carbon; Lignin; Adsorption isotherm; Pore size distribution; X-ray diffraction; Trans- mission electron micrograph(TEM);
- 【文献出处】 林产化学与工业 ,Chemistry & Industry of Forest Products , 编辑部邮箱 ,1991年02期
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