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首页> 外文期刊>The Canadian Journal of Chemical Engineering >PREPARATION OF MICROPOROUS ACTIVATED CARBON FROM Aegle marmelos FRUIT SHELL BY KOH ACTIVATION
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PREPARATION OF MICROPOROUS ACTIVATED CARBON FROM Aegle marmelos FRUIT SHELL BY KOH ACTIVATION

机译：KOH活化法从马格洛斯果壳中制备微孔活性炭

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摘要

Activated carbon (AC) is well-known for its unique properties; hence, the search for new precursors and the investigation of new methods for the preparation of AC is still drawing attention of many researchers. In the present work, microporous AC was prepared from Aegle marmelos fruit shell (AMFS) by potassium hydroxide (KOH) activation. The effect of process parameters such as impregnation ratio, carbonisation temperature and holding time on porous characteristics was investigated. The porous characteristics of prepared AC samples were analysed by N2 adsorption-desorption isotherms, and it was found that the isotherms obtained resemble typical microporous solids (Type-I). The Langmuir surface area and total pore volume of the sample prepared at optimum conditions were found to be 937m~2/g and 0.33cm~3/g, respectively. The contribution of micropores to the porous characteristics of the prepared AC is very much appreciable, and about 97% of the total surface area and pore volume is attained by micropores. Pore size distribution (PSD) by Dubinin-Astakhov (DA) and micro-pore (MP) methods confirmed the presence of micropores to a great extent with insignificant mesoporosity.
机译：活性炭（AC）以其独特的性能而闻名。因此，寻找新的前体和研究制备AC的新方法仍引起许多研究人员的关注。在本工作中，通过氢氧化钾（KOH）活化，从马格洛斯果壳（AMFS）制备微孔AC。研究了浸渍率，碳化温度和保温时间等工艺参数对多孔性能的影响。通过N 2吸附-解吸等温线分析制备的AC样品的多孔特性，发现所获得的等温线类似于典型的微孔固体（I型）。发现在最佳条件下制备的样品的朗缪尔表面积和总孔体积分别为937m〜2 / g和0.33cm〜3 / g。微孔对制备的AC的多孔特性的贡献是非常明显的，并且微孔可达到约97％的总表面积和孔体积。用Dubinin-Astakhov（DA）和微孔（MP）方法进行的孔尺寸分布（PSD）证实了微孔的存在与介孔率无关。

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