A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation

© 2019 Elsevier B.V. Oil contamination in the environment has drawn increasing concern with regards the removal of oil spills. Herein, electrospun fibrous composite mats, based mainly on eco-friendly poly(lactic acid) (PLA), were fabricated with the ability to function as oil adsorbents and oil/wat...

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Main Authors: Tharnthip Krasian, Winita Punyodom, Patnarin Worajittiphon
Format: Journal
Published: 2019
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/65451
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spelling th-cmuir.6653943832-654512019-08-05T04:37:29Z A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation Tharnthip Krasian Winita Punyodom Patnarin Worajittiphon Chemical Engineering Chemistry Engineering Environmental Science © 2019 Elsevier B.V. Oil contamination in the environment has drawn increasing concern with regards the removal of oil spills. Herein, electrospun fibrous composite mats, based mainly on eco-friendly poly(lactic acid) (PLA), were fabricated with the ability to function as oil adsorbents and oil/water separators. The incorporation of two-dimensional materials, either molybdenum disulfide (MoS 2 ) or tungsten disulfide (WS 2 ) contributes to the enhancement in oil adsorption capacity of the neat PLA mats (7.75 g/g) by ∼89% and ∼102%, respectively. Using a grinding-assisted direct ultrasonication of the MoS 2 and WS 2 , the WS 2 -MoS 2 hybrid was facilely prepared in mild conditions with no requirement of a multi-step procedure. The presence of the hybrid at an optimal loading content in the PLA mats contributed to strengthening of the mats and, more importantly, a further increase of oil adsorption capacity to reach ∼190% enhancement in comparison with the neat PLA mats. The PLA/hybrid mats offer versatility in adsorbing various oils and providing good reusability with efficient adsorption performance of ∼90% during repeated use. The composite mats also behave as oil/water separators by functioning as oil adsorbents for floating oil on water surfaces and also acting as separation membranes in a simple gravity-driven filtration system. Effective separation of surfactant-stabilized oil/water emulsion is demonstrated with ∼70% flux recovery over separating cycles. The PLA/hybrid mats are promising candidates for the future treatment of oil contaminants in the natural environment. 2019-08-05T04:33:33Z 2019-08-05T04:33:33Z 2019-08-01 Journal 13858947 2-s2.0-85062853572 10.1016/j.cej.2019.03.092 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85062853572&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/65451
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemical Engineering
Chemistry
Engineering
Environmental Science
spellingShingle Chemical Engineering
Chemistry
Engineering
Environmental Science
Tharnthip Krasian
Winita Punyodom
Patnarin Worajittiphon
A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
description © 2019 Elsevier B.V. Oil contamination in the environment has drawn increasing concern with regards the removal of oil spills. Herein, electrospun fibrous composite mats, based mainly on eco-friendly poly(lactic acid) (PLA), were fabricated with the ability to function as oil adsorbents and oil/water separators. The incorporation of two-dimensional materials, either molybdenum disulfide (MoS 2 ) or tungsten disulfide (WS 2 ) contributes to the enhancement in oil adsorption capacity of the neat PLA mats (7.75 g/g) by ∼89% and ∼102%, respectively. Using a grinding-assisted direct ultrasonication of the MoS 2 and WS 2 , the WS 2 -MoS 2 hybrid was facilely prepared in mild conditions with no requirement of a multi-step procedure. The presence of the hybrid at an optimal loading content in the PLA mats contributed to strengthening of the mats and, more importantly, a further increase of oil adsorption capacity to reach ∼190% enhancement in comparison with the neat PLA mats. The PLA/hybrid mats offer versatility in adsorbing various oils and providing good reusability with efficient adsorption performance of ∼90% during repeated use. The composite mats also behave as oil/water separators by functioning as oil adsorbents for floating oil on water surfaces and also acting as separation membranes in a simple gravity-driven filtration system. Effective separation of surfactant-stabilized oil/water emulsion is demonstrated with ∼70% flux recovery over separating cycles. The PLA/hybrid mats are promising candidates for the future treatment of oil contaminants in the natural environment.
format Journal
author Tharnthip Krasian
Winita Punyodom
Patnarin Worajittiphon
author_facet Tharnthip Krasian
Winita Punyodom
Patnarin Worajittiphon
author_sort Tharnthip Krasian
title A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
title_short A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
title_full A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
title_fullStr A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
title_full_unstemmed A hybrid of 2D materials (MoS <inf>2</inf> and WS <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
title_sort hybrid of 2d materials (mos <inf>2</inf> and ws <inf>2</inf> ) as an effective performance enhancer for poly(lactic acid) fibrous mats in oil adsorption and oil/water separation
publishDate 2019
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85062853572&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/65451
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