Please use this identifier to cite or link to this item: https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/2017
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dc.contributor.authorRoy, Sunanda-
dc.contributor.authorGhosh, Barnali Dasgupta-
dc.contributor.authorGoh, Kheng Lim-
dc.contributor.authorKim, Jaehwan-
dc.contributor.authorAhn, Hyeok Jun-
dc.contributor.authorChang, Young-Wook-
dc.date.accessioned2023-11-09T09:08:27Z-
dc.date.available2023-11-09T09:08:27Z-
dc.date.issued2023-03-25-
dc.identifier.issn1873-3891-
dc.identifier.issn0008-6223-
dc.identifier.urihttps://doi.org/10.1016/j.carbon.2023.02.040-
dc.identifier.urihttp://gnanaganga.inflibnet.ac.in:8080/jspui/handle/123456789/2017-
dc.description.abstractRecently, a profound interest has been developed in preparing adsorbents (mostly carbon-based) for CO2 capture due to increasing global warming. Unfortunately, the adsorption capacity is still not satisfactory due to inadequate coordination between the surface pores and surface chemistry, the key players in adsorption. This article describes a new strategy to produce highly effective adsorbents, capable of absorbing a large CO2 from ambient conditions (35 °C, 1atm). The adsorbents were produced from used face masks (FMs), a highly produced medical waste in current times. The high adsorption capacity of the adsorbent was incorporated through a novel surface functionalization process that generates numerous additional hierarchical pores on the pre-designed porous adsorbents, and more effective chemical binding sites, prerequisites for heavy CO2 capture. Firstly, the FMs were converted into porous activated carbon fibers (ACFs) under controlled conditions and then modified the surface with polydopamine (pDA) assisted tetraethylenepentamine (TEPA) grafting. After modification, the adsorbent (TEPA-pDA-ACFs, 3.89 mmol/g) showed 648% and 24% higher CO2 adsorption capacity than that of the pristine FMs (0.52 mmol/g) and ACFs (3.14 mmol/g), respectively. The value was found superior to many recent reports based on carbon adsorbents. Moreover, the adsorbent displayed excellent regeneration (>98%) and recycling ability even after several cycles. Interestingly, the adsorbent further showed outstanding multi-dye removal capacities (both cationic and anionic) from aqueous solutions. The removal efficiency remained >94% even after 9 cycles of adsorption-desorption. These results conclude that our attempt for preparing adsorbents from used face masks (TEPA-pDA-ACFs) could be a robust and viable approach for the development of a sustainable earth.en_US
dc.language.isoenen_US
dc.publisherCarbonen_US
dc.subjectPoresen_US
dc.subjectAdsorption capacityen_US
dc.subjectTetraethylenepentamine (TEPA)en_US
dc.subjectSurface functionalizationen_US
dc.subjectCarbon dioxide (CO2)en_US
dc.titlePores on Pores: A Novel Approach to Fabricate Super Adsorbents from Used Face Masks for Large CO2 Capture and Dye Removalen_US
dc.typeArticleen_US
Appears in Collections:Journal Articles

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