Artificial intelligence models for methylene blue removal using functionalized carbon nanotubes

Mijwel, Abd-Alkhaliq Salih and Ahmed, Ali Najah and Afan, Haitham Abdulmohsin and Alayan, Haiyam Mohammed and Sherif, Mohsen and Elshafie, Ahmed (2023) Artificial intelligence models for methylene blue removal using functionalized carbon nanotubes. Scientific Report, 13 (1). ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-023-45032-3.

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Abstract

This study aims to assess the practicality of utilizing artificial intelligence (AI) to replicate the adsorption capability of functionalized carbon nanotubes (CNTs) in the context of methylene blue (MB) removal. The process of generating the carbon nanotubes involved the pyrolysis of acetylene under conditions that were determined to be optimal. These conditions included a reaction temperature of 550 degrees C, a reaction time of 37.3 min, and a gas ratio (H2/C2H2) of 1.0. The experimental data pertaining to MB adsorption on CNTs was found to be extremely well-suited to the Pseudo-second-order model, as evidenced by an R2 value of 0.998, an X2 value of 5.75, a qe value of 163.93 (mg/g), and a K2 value of 6.34 x 10-4 (g/mg min).The MB adsorption system exhibited the best agreement with the Langmuir model, yielding an R2 of 0.989, RL value of 0.031, qm value of 250.0 mg/g. The results of AI modelling demonstrated a remarkable performance using a recurrent neural network, achieving with the highest correlation coefficient of R2 = 0.9471. Additionally, the feed-forward neural network yielded a correlation coefficient of R2 = 0.9658. The modeling results hold promise for accurately predicting the adsorption capacity of CNTs, which can potentially enhance their efficiency in removing methylene blue from wastewater.

Item Type: Article
Funders: None
Uncontrolled Keywords: Adsorption behavior; Activated carbon; Graphene oxide
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Civil Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Oct 2025 03:25
Last Modified: 17 Oct 2025 03:26
URI: http://eprints.um.edu.my/id/eprint/48109

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