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首页> 外文期刊>The Korean journal of chemical engineering >Behavior of toluene adsorption on activated carbon nanofibers prepared by electrospinning of a polyacrylonitrile-cellulose acetate blending solution
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Behavior of toluene adsorption on activated carbon nanofibers prepared by electrospinning of a polyacrylonitrile-cellulose acetate blending solution

机译：聚丙烯腈-醋酸纤维素共混溶液静电纺丝制备的活性炭纳米纤维上甲苯的吸附行为

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摘要

Activated carbon nanofibers were prepared with polymer blends that consisted of polyacrylonitrile (PAN) and cellulose acetate (CA), by electrospinning and subsequent thermal treatment. The average fiber diameter of samples was about 200 nm, ranging from 150 to 400 nm. The specific surface area, total pore volume, and micropore volume increased with increasing CA content. As the CA content was increased up to 20%, the pore characteristics for the adsorption performance were enhanced. However, excess CA content (over 30%) was harmful to volatile organic compounds (VOCs) adsorption ability due to changing morphology of the activated carbon nanofibers. The O/C ratio was increased with increasing CA content. However, the O/C ratios of all activated carbon nanofibers prepared with blends represent small values revealing non-polarity of the surface. The adsorption capacities of PC10, PC09, PC08 and PC07 were 65 g/100 g, 66 g/100 g, 72 g/100 g and 67 g/100 g. The blends of the PAN with CA showed better characteristics than those of PAN alone, but apparently there is an appropriate blending ratio (20%) for high-performance of activated carbonaceous materials.
机译：活性炭纳米纤维是通过静电纺丝和随后的热处理与由聚丙烯腈（PAN）和醋酸纤维素（CA）组成的聚合物共混物制成的。样品的平均纤维直径为约200nm，范围为150至400nm。比表面积，总孔体积和微孔体积随着CA含量的增加而增加。随着CA含量增加至20％，用于吸附性能的孔特性增强。然而，由于活性炭纳米纤维的形态变化，过量的CA含量（超过30％）对挥发性有机化合物（VOC）的吸附能力有害。 O / C比随CA含量的增加而增加。但是，用共混物制备的所有活性炭纳米纤维的O / C比值都显示出很小的值，表明表面无极性。 PC10，PC09，PC08和PC07的吸附容量为65 g / 100 g，66 g / 100 g，72 g / 100 g和67 g / 100 g。 PAN与CA的共混物比单独的PAN具有更好的特性，但是显然，对于高性能的活性碳质材料，有合适的共混比例（20％）。

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