Comment on "Cation-Doped Nanocarbons for Enhanced Perfluoroalkyl Substance Removal: Exotic Bottom-Up Solution Plasma Synthesis and Characterization"

Khim Hoong Chu; Mohd Ali Hashim; Mohd Hafiz Zawawi

doi:10.1021/acsami.5c02340

Comment on "Cation-Doped Nanocarbons for Enhanced Perfluoroalkyl Substance Removal: Exotic Bottom-Up Solution Plasma Synthesis and Characterization"

ACS Appl Mater Interfaces. 2025 Jun 17. doi: 10.1021/acsami.5c02340. Online ahead of print.

Authors

Khim Hoong Chu^{1

2}, Mohd Ali Hashim², Mohd Hafiz Zawawi^{1

3}

Affiliations

¹ Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Selangor, Malaysia.
² Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
³ Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Selangor, Malaysia.

PMID: 40527763
DOI: 10.1021/acsami.5c02340

Abstract

This communication identifies major methodological flaws in a recent publication, ACS Appl. Mater. Interfaces 2024, 16, 61832-61845, including the inappropriate use of the pseudo-second-order kinetic model to infer adsorption mechanisms, the application of incorrect forms of the Weber-Morris intraparticle diffusion model and the Dubinin-Radushkevich isotherm, and errors in the calculation of thermodynamic parameters. Addressing these issues is essential to ensure the scientific integrity and reliability of the reported results.

Keywords: Dubinin−Radushkevich isotherm; Weber−Morris model; adsorption thermodynamics; intraparticle diffusion; pseudo-second-order kinetics.