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Comparison of adsorption capacities of nanoadsorbents with conventional activated carbon for volatile organic compounds.

机译：纳米吸附剂与常规活性炭对挥发性有机化合物的吸附能力比较。

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This research explores the potential for using single wall carbon nanohorns (SWNHs) for adsorption of volatile organic compounds (VOCs) categorized as hazardous air pollutants and which contribute to ground level ozone smog formation. It also compares the adsorption capacity of conventional activated carbon and carbon nanohorns.; Carbon nanoadsorbents, with at least one dimension on the nanometer scale, can possess advantages over traditional activated carbon adsorbents in terms of binding energies or interaction potentials for physisorption. Nanotubes and nanohorns both have excellent adsorption properties due to high-energy adsorption sites in their interior (internal pores) and in the region between adjacent nanotubes/nanohorns (interstitial channel). Nanohorns would be preferable for air pollutant removal applications because they self-assemble into spherical aggregates, with space between adjacent nanohorns large enough to accommodate small gas molecules and also are cheaper to manufacture as compared to nanotubes.; This research aims to: (1) Determine the adsorption capacity of open-end carbon nanohorns with heat treatment and densification and closed-end carbon nanohorns, with and without heat treatment and densification, for a variety of VOCs (alkanes and alkenes); (2) Determine which type of adsorbent gives the maximum adsorption capacity for a majority of the VOCs, and whether there are any trends in adsorption capacity vs. compound structure; (3) Determine the adsorption capacity of regular activated carbon for the same VOCs. (Abstract shortened by UMI.)
机译：这项研究探索了使用单壁碳纳米角（SWNH）吸附被归类为有害空气污染物并有助于地面臭氧烟雾形成的挥发性有机化合物（VOC）吸附的潜力。还比较了传统活性炭和碳纳米角的吸附能力。在纳米尺度上至少具有一维的碳纳米吸附剂在结合能或用于物理吸附的相互作用势方面可以具有优于传统活性炭吸附剂的优势。由于纳米管和纳米角的内部（内部孔）以及相邻的纳米管/纳米角之间的区域（间隙通道）具有高能吸附位，因此它们都具有出色的吸附性能。纳米角在空气污染物去除应用中将是更可取的，因为它们会自组装成球形聚集体，相邻纳米角之间的空间足够大以容纳小气体分子，并且与纳米管相比制造起来更便宜。这项研究的目的是：（1）确定经过热处理和致密化的开放式碳纳米角和经过热处理和不经过致密化的封闭式碳纳米角对各种VOC（烷烃和烯烃）的吸附能力； （2）确定哪种类型的吸附剂对大多数VOC具有最大吸附能力，以及吸附能力与化合物结构之间是否存在任何趋势； （3）确定相同活性炭对常规活性炭的吸附能力。 （摘要由UMI缩短。）

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