Plasma Surface Activated Carbon Fiber Mats for Effective Aerosol-Mediated Mn Remediation

ACS Sustainable Resource Management Pub Date : 2024-11-30 DOI:10.1021/acssusresmgt.4c0038310.1021/acssusresmgt.4c00383

Renjith Rajan Pillai, Brie M. McMahan, Lea Hebert, Jonghwa Oh, Claudiu T. Lungu, Veena B. Antony and Vinoy Thomas*,

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Abstract

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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ACS Sustainable Resource Management

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