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250914s2025 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5c03336
|2 doi
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|a pubmed25n1578.xml
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|a eng
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| 100 |
1 |
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|a Shi, Rui
|e verfasserin
|4 aut
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| 245 |
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|a Porous Carbon Nanofibers with Sulfur and Oxygen Composite Surfaces Derived from Ultrafine Polypropylene Fibers in Waste Masks for CO2 Adsorption
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|c 2025
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 23.09.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Heteroatom-doped porous carbon nanofibers exhibit strong potential for CO2 adsorption, owing to their unique morphology and physicochemical properties. However, their large-scale application has been restricted by complex synthesis procedures and the high cost of conventional precursors. In this study, porous carbon nanofibers (ACFs) with S-O composite surfaces were synthesized using ultrafine polypropylene fibers (PP) from waste masks as precursors. PP was stabilized through temperature-time-controlled sulfonation, followed by one-step carbonization and activation with KOH and ZnCl2 at 800 and 600 °C, respectively. The resulting materials showed a high total pore volume (1.33-1.65 cm3·g-1) and substantial S-O content (7.85-13.19 atom %). They achieved excellent CO2 adsorption capacities of 3.69-4.73 mmol·g-1 (0 °C, 1 bar) and CO2/N2 selectivities of 13-19, surpassing those of porous carbon fibers derived from commercial polyacrylonitrile. The enhanced CO2 uptake was attributed to the synergistic effect of the S-O surface active sites located in slit pores with a pore size of 1.1 nm. This work demonstrates a cost-effective approach for producing porous carbon nanofibers and offers a sustainable route for converting waste into materials for environmental and energy applications
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|a Journal Article
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| 700 |
1 |
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|a Wang, Shuyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kou, Jianyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qiao, Musen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Liqing
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 41(2025), 37 vom: 23. Sept., Seite 25524-25534
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
1 |
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|g volume:41
|g year:2025
|g number:37
|g day:23
|g month:09
|g pages:25524-25534
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.5c03336
|3 Volltext
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