Composite electrospun fly ash/polyurethane fibers for absorption of volatile organic compounds from air

Electreted polyetherimide–silica fibrous membranes for enhanced filtration of fine particles

“…Notice that these methods are difficult-to-control, time-consuming, energyintensive and usually additional species are needed to separate fine particles. Electrospinning, as an alternative to these methods, has emerged as a promising technology in air filtration and water purification devices, mainly owing to the advantageous features of controllable fiber diameter, high porosity, remarkable specific surface area, low packing density, and interconnected porous structure [14][15][16][17][18]. Taking advantage of these intriguing characters, continuous efforts have been made to fabricate electrospun filter media including polyurethane (PU), polyvinyl chloride-PU (PVC-PU), polyacrylonitrile (PAN), and polyamide-66 which have been prepared [19][20][21][22].…”

Preparation and photocatalytic activity of fly ash incorporated TiO2 nanofibers for effective removal of organic pollutants

“…In order to evaluate the selfdegradation of MB dye under UV light, the experiment was carried out without using catalyst where the self-degradation and was found fairly constant. This significantly higher rate of MB degradation could be explained by combined degradation properties of TiO 2 nanofiber [24] and adsorption properties of FA [19]. The reuse of catalysts is very important parameter in assessing the practical application of photocatalysts in wastewater treatment.…”

“…Its favorable properties such as sphericity, porosity, nontoxicity, lightweight property, and high strength make it cost effective materials for different applications [19][20][21]. Research is in progress to find out the various ways to utilize this by-product to prevent any environmental problems as well as effectively use them.…”

Enriching composite hydrophilic polyurethane foams with PAC to enhance adsorption of phenol from aqueous solutions

“…The tensile strength increased by 95% and 53% for the clay-added and PAC-added foams respectively. Kim et al [39], also observed an improvement of the tensile strength for electrospun nanofibrous mats by addition of fly ash particles. The increase of the compressive strength and modulus of HPU composites resulted from the higher-density and smaller cell size [40].…”