Abstract
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−1 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.
Highlights
Volatile organic compounds (VOCs) are emitted mainly by industrial enterprises and seriously pollute the environment [1]
VOC removal through traditional adsorbents such as activated carbon, graphene oxide, and metal organic frameworks [3,9,10,11] is difficult for industrial practice presently because recycling or reusing adsorbents is not easy
Atmospheric VOCs can be effectively removed by electrospun fibers, which have adsorption abilities reportedly similar to that of activated carbon [16,17]
Summary
Volatile organic compounds (VOCs) are emitted mainly by industrial enterprises and seriously pollute the environment [1]. VOC removal through traditional adsorbents such as activated carbon, graphene oxide, and metal organic frameworks [3,9,10,11] is difficult for industrial practice presently because recycling or reusing adsorbents is not easy. Atmospheric VOCs can be effectively removed by electrospun fibers, which have adsorption abilities reportedly similar to that of activated carbon [16,17]. Different non-spun solid particles can be added to effectively increase the adsorption capacity of electrospun fibers [16,17]. Electrospun polyacrylonitrile (PAN) fibers have drawn a great deal of attention due to their good thermal stability, fine precursors of carbon nanofibers and excellent filament-forming properties [18,19]. It is anticipated that electrospun PAN fibers can be explored to remove acetone from the atmosphere
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