Wang Yixin, Tao Hong, Yu Dengguang, Chang Changtang
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
Nanomaterials (Basel). 2018 May 21;8(5):350. doi: 10.3390/nano8050350.
This study explored a new facile method of preparing ordered porous electrospun honeycomb fibers to obtain the most promising composites for maximal adsorption of volatile organic compounds (VOCs). The self-assembly ordered porous material (OPM) and polyacrylonitrile (PAN) were formulated into a blend solution to prepare honeycomb fibers. SEM and TEM images showed that OPM was effectively bonded in PAN fibers because of the composite’s structure. Acetone was used as a model to assess the VOC adsorption performances of electrospun honeycomb fibers with different OPM contents. Experimental results revealed that the adsorption capacity of honeycomb fibers increased with the increase of loaded OPM within the PAN fibers. The highest adsorption capacity was 58.2 μg g by the fibers containing with 60% OPM in weight. After several recycling times, the adsorption capacities of the reused honeycomb fibers were almost the same with the fresh fibers. This finding indicated that the electrospun honeycomb fibers have potential application in removing VOCs in the workplace, and promote the performance of masks for odor removal.
本研究探索了一种制备有序多孔电纺蜂窝纤维的简便新方法，以获得对挥发性有机化合物（VOCs）具有最大吸附能力的最有前景的复合材料。将自组装有序多孔材料（OPM）和聚丙烯腈（PAN）配制成混合溶液来制备蜂窝纤维。扫描电子显微镜（SEM）和透射电子显微镜（TEM）图像显示，由于复合材料的结构，OPM有效地结合在PAN纤维中。以丙酮为模型评估了不同OPM含量的电纺蜂窝纤维对VOC的吸附性能。实验结果表明，蜂窝纤维的吸附容量随PAN纤维中负载OPM的增加而增加。含60%（重量）OPM的纤维的最高吸附容量为58.2μg/g。经过几次循环使用后，再利用的蜂窝纤维的吸附容量与新鲜纤维几乎相同。这一发现表明，电纺蜂窝纤维在去除工作场所的VOCs方面具有潜在应用，并可提高除臭口罩的性能。
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