Article history: A new porous fabric adsorbent (PM/PP nonwoven) was prepared by hydrogen bonding self-assembly Received 28 July 2015 method, in which poly(divinylbenzene-co-4-vinylpyridine) microspheres were introduced onto the sur- Received in revised form 16 October 2015 face of PP-g-AA (polypropylene grafted acrylic acid) nonwoven. The effects of the main conditions for Accepted 26 October 2015 self-assembly reaction such as mass ratio of microsphere to nonwoven, pH and the grafting degree Available online 31 October 2015 of acrylic acid were studied. In addition, the adsorption mechanisms and interactions for three VOCs (styrene, cyclohexane, acetone) were systematically elucidated. The resulting 28.2% PM/PP nonwoven Keywords: obtained a higher adsorption amount (52.8 mg/g) of styrene vapor, which was 88 times greater than Polypropylene nonwoven that of original PP nonwoven. Meanwhile, the kinetic studies suggested that the Yoon and Nelson model Surface modiﬁcation is suitable to describe the adsorption mechanism of styrene over the modiﬁed nonwovens. Adsorption Porous microspheres and pressure drop data showed that PM/PP nonwoven had good adsorption ability and air permeability Self-assembly VOCs adsorption due to its abundant functional groups and porous structures. Taken together, it is expected that PM/PP nonwoven would be a promising adsorbent for removal of VOCs from
Applied Surface Science – Elsevier
Published: Jan 1, 2016
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