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1核桃壳活性炭的改性及其在重金属离子废水处理中的研究进展显示文摘综述了近年来国内外改性核桃壳活性炭(walnut shell activated carbon,WSAC)的制备方法,包括表面化学改性、表面物理改性和物理-化学耦合改性。总结了WSAC在几种重金属离子废水处理中的应用研究进展,并指出了WSAC对含重金属离子废水净化研究中存在的问题,展望了WSAC及其处理重金属废水的发展方向。燕翔 张少飞 王都留 吴生平 2022粮食与油脂2022,35,9:2
2次氯酸钠废液活化法制备柚子皮活性炭显示文摘以柚子皮为原料,采用次氯酸钠废液活化法制备了柚子皮活性炭,通过正交实验优化了制备条件,并运用SEM、FTIR和XRD技术对活性炭产品进行了表征。实验结果表明:制备柚子皮活性炭的最佳工艺条件为炭化温度350℃、次氯酸钠废液含量25%(φ)、次氯酸钠废液活化时间25 min、高温活化温度650℃、高温活化时间60 min;最佳条件下,柚子皮活性炭的产率为31.88%、碘吸附值为854 mg/g、亚甲基蓝吸附值为216.9 mg/g。表征结果显示:活化后的柚子皮炭具有更大的孔体积、更有序的孔径排布和更发达的孔隙结构;柚子皮活性炭表面存在大量的含氧基团;柚子皮活性炭的石墨化度为61.32%,具有较高的稳定性。涂丹 廖辉伟 许云川 解悦 魏潇 李孟秋 2017化工环保2017,37,5:2
3Molecular Simulation of Methane Adsorption in Different Micro Porous Activated Carbons at Different Temperatures显示文摘We employed the previously developed micro porous activated carbon models of different pore sizes ranges of 9-11?,10-12?,and 13-16?that were constructed by molecular simulation method based on a random packing of platelets of carbon sheets,functionalized with oxygen containing groups,to study the adsorption behavior of methane molecules.In studying methane adsorption behavior,we used Grand Canonical Monte Carlo and Molecular Dynamics methods at different temperatures of 273.15,298.15 and303.15 K.Adsorption isotherms,isosteric heats of adsorption,adsorption energy distributions and porosity changes of the models during adsorption process were analyzed and discussed.Furthermore,radial distribution Functions,relative distribution and diffusion coefficients of methane molecules in activated carbon models at different temperatures were studied.After the analysis,the main results indicated that large micro pores activated carbons were favorable for storing methane at lower temperatures and small micro pores were the most favorable for adsorbing methane molecules at higher temperatures.Interestingly,the developed model structures showed high capacities to store methane molecule at ambient temperatures and low pressure.Rugarabamu John Rwiza 赵东风 SONG Kunli LI Shi 2023Journal of Wuhan University of Technology(Materials Science)2023,38,1:0
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