Preparation and characterization of PAN-based ultra-fine activated carbon fiber adsorbent
Preparation and characterization of PAN-based ultra-fine activated carbon fiber adsorbent
复制标题
DOI：
10.1007/s10934-010-9388-y
复制
发表时间：
2011-06
影响因子：
2.6
通讯作者：
Yu Yang;Zhou Mei-hua;X. Gang;Jiang Zheng-Xiong
中科院分区：
文献类型：
--
作者：
Yu Yang;Zhou Mei-hua;X. Gang;Jiang Zheng-Xiong
以二甲基甲酰胺为溶剂，采用静电纺丝法制备聚丙烯腈基超细纤维。然后对纤维进行预氧化、炭化、水蒸气活化处理，制备PAN基超细活性炭纤维（UFACF）吸附剂。根据比表面积、孔容、孔径分布和苯酚吸附值，通过正交实验考察了不同因素对UFACF活化产率和吸附性能的影响。采用热重分析、场发射扫描电镜、红外光谱、X射线衍射等分析手段，研究了UFACF在热处理过程中的形貌和结构演变。在最佳条件下，UFACF的活化产率为37.2%~ 58.5%，最大比表面积为1075.1 m2 g-1，最大苯酚吸附值为377.1 mg g-1。
Polyacrylonitrile-based (PAN) ultra-fine fibers were made from electrospining with dimethylformamide as a solvent. And then the fibers were processed via pre-oxidization, carbonization, and steam activation to produce the PAN-based ultra-fine activated carbon fiber (UFACF) adsorbent. According to the specific surface area, pore volume, pore size distribution and phenol adsorption value, the effects of different factors on the yield of activation and adsorption properties of UFACF were investigated through the orthogonal experiment. TG, field emission-scanning electron microscope, FTIR, XRD were employed to characterize the morphology and structure evolvement of UFACF during thermal treatment process. At the optimal conditions, the yield of activation of UFACF was from 37.2 to 58.5%, the maximal specific surface area 1075.1 m2g−1, and the maximal phenol adsorption value 377.1 mg g−1.