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Polymerization of benzoxazine impregnated in porous carbons. A scalable and low-cost route to smart copper-ion absorbents with saturation indicator function
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- Petsagkourakis, Ioannis (author)
- RISE,Smart hårdvara
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- Beni, Valerio, 1972- (author)
- RISE,Smart hårdvara
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- Strandberg, Jan (author)
- RISE,Smart hårdvara
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- Institution of Chemical Engineers, 2024
- 2024
- English.
- In: Process Safety and Environmental Protection. - : Institution of Chemical Engineers. - 0957-5820 .- 1744-3598. ; 184, s. 782-789
- Journal article (peer-reviewed)
Abstract
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- Porous carbon materials are common materials used for sensor and absorbent applications. A novel approach for functionalizing porous carbons through the impregnation of porous carbon black with benzoxazine monomers, followed by thermal polymerization is introduced herein. The method not only establishes a new avenue for the functionalization of porous carbons but also endows the resulting material with both copper ion-binding and sensing properties. We showcase the versatility of the technique by illustrating that the polymerization of phenols with benzoxazine monomers serves as an extra tool to customize absorption- and sensing properties. Experimental validation involved testing the method on carbon black as a porous substrate, which was impregnated with both bisphenol-a benzoxazine and a combination of bisphenol-a benzoxazine and alizarin. The resulting materials were assessed for their dual functionality as both an absorbent and a sensor for copper ions by varied copper ion concentrations and exposure times. The dye absorption test demonstrated a notable capacity to accumulate copper ions from dilute solutions. Electrochemical characterization further confirmed the effectiveness of the modified carbons, as electrodes produced from inks were successful in detecting copper ions accumulated from 50 μM Cu2+ solutions. With this work, we aspire to set the steppingstone towards a facile functionalization of porous carbon materials towards water purification applications. © 2024 The Authors
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Absorption; Adsorbents; Carbon black; Costs; Impregnation; Metal ions; Monomers; Phenols; Polymerization; Porous materials; Absorbent; Benzoxazine; Benzoxazine monomers; Copper ions; Functionalizations; Modified carbon; Porous carbon materials; Porous carbons; Resulting materials; Sensing property; Copper
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- ref (subject category)
- art (subject category)
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