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首页> 外文期刊>Journal of Applied Polymer Science >Removal of formaldehyde at low concentration using various activated carbon fibers
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Removal of formaldehyde at low concentration using various activated carbon fibers

机译：使用各种活性炭纤维去除低浓度的甲醛

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摘要

Adsorption of low concentration formaldehyde on pitch-based, rayon-based, and PAN-based activated carbon fibers (ACFs) and an unactivated PAN-based carbon fiber (PAN-CF) was investigated by a dynarnic method. The pore structure and surface chemistry of these samples were characterized by liquid nitrogen adsorption, elemental analysis, and X-ray photoelectron spectroscopy. Results revealed s that the pore structure, especially surface chen-dcal composition, greatly influence the formaldehyde adsorption. PAN-based ACFs showed the highest formaldehyde adsorption capacity because there are more abundant nitrogen-containing groups, especially pyrrolic, pyridonic, pyridinic, and quaternary on the Surface. The breakthrough time and formaldehyde adsorption capacity of one kind of PAN-ACF were 361 min and 0.478 mmol/g, respectively. 9) 2007 Wiley Periodicals, Inc.
机译：通过动态分析方法研究了低浓度甲醛在沥青基，人造丝和PAN基活性炭纤维（ACF）和未活化PAN基活性炭纤维（PAN-CF）上的吸附。这些样品的孔结构和表面化学特性通过液氮吸附，元素分析和X射线光电子能谱表征。结果表明，孔结构，尤其是表面的陈皮成分，极大地影响了甲醛的吸附。 PAN基ACF表现出最高的甲醛吸附能力，因为表面上存在更多的含氮基团，尤其是吡咯基，吡啶基，吡啶基和季铵基。一种PAN-ACF的穿透时间和甲醛吸附量分别为361 min和0.478 mmol / g。 9）2007年Wiley Periodicals，Inc.

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