High quality activated carbon was successfully produced from Tectona grandis sawdust by chemical activation using potassium chloride and sodium thiosulphate in a ratio of 1:1.5:1. Surface characterization of sawdust and activated carbon showed the presence of several functional groups such as hydroxyl, ketones, phenols, carboxylic acids, aldehydes and aryl halide together with the heterogeneous surface and extensive porous network as depicted by morphological characterization. It was found that the per cent yield by mass of Tectona grandis sawdust was 52% (SD ± 0.41%). The content of fixed carbon (67.3%) and volatile matter (13.7%) in T. grandis sawdust signifies the ease with which it can be ignited and oxidized. The x‐ray diffraction analysis of activated carbon prepared from T. grandis sawdust indicated amorphous behavior of activated carbon. In the present work, activated carbon possesses 8.76 pH zero‐point charge, 1270 m²/g BET surface area, 0.673 cm³/g total pore volume and 0.42 g/cm³ bulk density.

中文翻译：

---

绿路线从大板粉锯屑衍生的活性炭的合成与表征

通过使用氯化钾和硫代硫酸钠以1：1.5：1的比例进行化学活化，成功地从巨果锯木屑生产了高质量的活性炭。锯末和活性炭的表面特征表明，如形态特征所示，存在多个官能团，例如羟基，酮，酚，羧酸，醛和芳基卤化物以及异质表面和广泛的多孔网络。结果发现，大圆柏木屑的质量百分含量为52％（SD ± 0.41％）。在固定碳（67.3％）和挥发性物质（13.7％）的含量，榧树锯末表明其易于点燃和氧化。X.锯末木屑制得的活性炭的X射线衍射分析表明，活性炭具有无定形特性。在目前的工作中，活性炭具有8.76 pH值零点电荷，1270 m ² / g BET表面积，0.673 cm ³ / g的总孔体积和0.42 g / cm ^3的堆积密度。