National Technical University of Athens, School of Chemical Engineering, Department III Materials Science and Engineering, Laboratory Unit Composite and Advanced Materials, 9-Heroon Polytechniou Str., Zografou Campus, 157 73 Athens, Greece.
Bioresour Technol. 2013 Feb;129:191-9. doi: 10.1016/j.biortech.2012.11.042. Epub 2012 Nov 17.
Carbonaceous adsorbents based on novolac resin (N) and olive stone biomass (B) in a proportion of 20/80 and 40/60 w./w. N/O were produced. The specimens were cured (c) and pyrolyzed/carbonized (C) up to 1000 °C under a continuous countercurrent flow type pyrolysis operation (N20B-cC, N40B-cC). Commercial activated carbon (AC) was used for comparison reasons. Methylene blue adsorption from its aqueous solutions onto the adsorbents and kinetic analysis were investigated. The specific surface area of adsorbents and the gross calorific values (GCV) of cured materials were determined. The results show that N40B-cC presents lower weight loss and shrinkage but higher methylene blue adsorption than N20B-cC. Pseudo-second order mechanism describes better methylene blue adsorption onto all adsorbents. The specific surface area of carbonaceous and the gross calorific values of cured materials follow the order: AC>N20B-cC>N40B-cC and N100-c>N40B-c>N20B-c>B respectively. Olive stone biomass may constitute a suitable precursor for the production of carbonaceous materials.
基于 novolac 树脂 (N) 和橄榄石生物质 (B) 的比例为 20/80 和 40/60 w./w 的碳质吸附剂 N/O 被制备。样品在连续逆流式热解操作下（N20B-cC、N40B-cC）被固化 (c) 和热解/碳化 (C) 至 1000°C。商业活性炭 (AC) 被用作比较的原因。研究了从水溶液中吸附亚甲基蓝及其吸附动力学分析。测定了吸附剂的比表面积和固化材料的总热值 (GCV)。结果表明，N40B-cC 的失重和收缩较小，但亚甲基蓝吸附量较高。准二级动力学模型更能描述亚甲基蓝在所有吸附剂上的吸附。碳质材料的比表面积和固化材料的总热值依次为：AC>N20B-cC>N40B-cC 和 N100-c>N40B-c>N20B-c>B。橄榄石生物质可能是制备碳质材料的合适前体。
