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Experimental study demonstrates enhanced manganese aerosol filtration using 2-mercaptoethanol plasma-treated carbon fibers, highlighting scalable air purification in mining regions.
Modifying nano/microporous fiber surfaces while preserving their bulk properties in a green and scalable way is desirable and highly challenging. This study employed the development of a plasma surface-engineered activated carbon fiber (ACF) mat to remove a model heavy metal (HM) manganese (Mn) from the air efficiently. This eco-conscious initiative will help to improve the air quality in severely contaminated mining regions. We investigated various precursors for plasma surface modification. The ACF treated with 2-mercaptoethanol (MCE) plasma exhibited superior filtration efficiency for HM-contaminated aerosols, resulting in a 25% enhancement compared to that of the pristine ACF. A comprehensive analysis of the mat’s physicochemical properties was conducted after modifications and filtration. The pressure drop values between the pristine and plasma-treated ACFs were found to be insignificant. Ultimately, these results have demonstrated the potential of MCE plasma-treated ACF as an efficient filter for removing HMs from the air.
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Pillai et al. (2024) studied this question.
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