Selective Adsorption of Indole on Mesoporous Carbon in an Aqueous System

A.B.M. Nazmul Islam; Mai Akamine; Chaerin Kim; Naoki Tanaka; Koichiro Kato; Tsuyohiko Fujigaya

doi:10.7209/carbon.030304

This article has now been updated. Please use the final version.

Selective Adsorption of Indole on Mesoporous Carbon in an Aqueous System

A.B.M. Nazmul Islam, Mai Akamine, Chaerin Kim, Naoki Tanaka, Koichiro Kato, Tsuyohiko Fujigaya

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Keywords: Mesoporous carbon, Pore size, Adsorption kinetics, Langmuir model, Selective Indole adsorption

JOURNAL RESTRICTED ACCESS Advance online publication
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Article ID: 030304

DOI https://doi.org/10.7209/carbon.030304

The final version of this article is now available: Vol. 3 (2024), No. 3 pp. 134-141

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Abstract

The removal of uremic toxins such as indole using carbon-based adsorbents is essential for preventing the progression of chronic kidney disease (CKD). In this study, mesoporous carbon (MC) with a uniform diameter of 3.1 nm was used as an adsorbent for indole in aqueous media, and its adsorption kinetics and thermodynamics were studied using the conventional adsorbent AST-120 as a control. Compared to AST-120, MC shows highly efficient indole adsorption as well as remarkable adsorption selectivity for indole in the presence of various amino acids. The excellent selectivity of MC can lower the dose of the adsorbent, which may improve the treatment strategy for CKD patients.

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