Cited by 79Adsorption and biosorption for pollutant removalCoagulation and Flocculation StudiesEnvironmental remediation with nanomaterials

An exploration of RSM, ANN, and ANFIS models for methylene blue dye adsorption using Oryza sativa straw biomass: a comparative approach

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Kumari, Sheetal, Agarwal, Smriti, Kumar, Manish, Sharma, Pinki, Kumar, Ajay, Hashem, Abeer, Alotaibi, Nouf H., Abd-Allah, Elsayed Fathi +1 more·2025·Scientific Reports

Abstract

This study focused on simulating the adsorption-based separation of Methylene Blue (MB) dye utilising Oryza sativa straw biomass (OSSB). Three distinct modelling approaches were employed: artificial neural networks (ANN), adaptive neuro-fuzzy inference systems (ANFIS), and response surface methodology (RSM). To evaluate the adsorbent’s potential, assessments were conducted using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The evaluation of RSM, ANN, and ANFIS included the quantification of R2, mean squared error (MSE), root mean square error (RMSE), and mean absolute error (MAE) metrics. The regression coefficients from the process modelling demonstrated that RSM (R2 = 0.9216), ANN (R2 = 0.8864), and ANFIS (R2 = 0.9589) all accurately predicted MB adsorptive removal. However, comparative statistical analysis revealed that the ANFIS model exhibited superior accuracy in data-based predictions compared to ANN and RSM models. The ideal pH for MB adsorption utilizing OSSB was established as 7. Additionally, favourable outcomes were obtained with 60-minute contact durations, 20 mg adsorbent quantities, and temperatures of 30 °C. The pseudo 2nd -order kinetic model for MB adsorption by OSSB was confirmed. The equilibrium data exhibited a superior fit with the Langmuir isotherm model in comparison to the Freundlich model. The thermodynamic adsorption parameters, including (∆G = -9.1489 kJ/mol), enthalpy change (∆H = -1457.2 kJ/mol), and entropy change (∆S = -19.03 J mol−1 K−1) indicated that the adsorption of MB onto the OSSB surface is exothermic and spontaneous under the experimental conditions. This research effectively showcased the potential of RSM, ANN, and ANFIS in simulating dye removal using OSSB. The generated parameter data proved valuable for the design and control of the adsorption process.

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  • ANFIS is suitable for tasks that demand a balance between prediction performance and model explainability.

    “These studies underscore ANFIS's suitability for tasks that demand a balance between prediction performance and model explainability.”

    From GPT-based lifelong learning and ANFIS-driven reply memory ratio prediction for aspect-based sentiment analysis (2025) · cites this paper as [40]

    The Results and discussion sections report strong ANFIS prediction accuracy for methylene blue adsorption and describe its fuzzy-system reasoning and IF-THEN rules (pages not provided). They do not assess model explainability or establish that ANFIS balances it against predictive performance, so that broader suitability claim is not fully supported. (LLM, conf=0.83)

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Research works printed but not linked: 3

  1. [13]Kuang, Y., Zhang, X. & Zhou, S. Adsorption of methylene blue in water onto activated carbon by surfactant modification. Water (Basel). 12, 587 (2020).
  2. [14]Alam, M. Z., Bari, M. N. & Kawsari, S. Statistical optimization of Methylene Blue dye removal from a synthetic textile wastewater using indigenous adsorbents. Environ. Sustain. Indic. 14, 100176 (2022).
  3. [57]Ndilimeke Akawa, M. & Mogolodi Dimpe, K. Nosizo Nomngongo, P. An adsorbent composed of alginate, polyvinylpyrrolidone and activated carbon (AC@PVP@alginate) for ultrasound-assisted dispersive micro-solid phase extraction of nevirapine and zidovudine in environmental water samples. Environ. Nanotechnol. Monit. Manag. 16, 100559 (2021).

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Authors
Kumari, S., Agarwal, S., Kumar, M., Sharma, P., Kumar, A., Hashem, A., Alotaibi, N. H., Abd-Allah, E. F., & Garg, M. C.
Affiliations
  • Amity University (IN)
  • Motilal Nehru National Institute of Technology (IN)
  • Indian Institute of Technology Roorkee (IN)
  • King Saud University (SA)
Corresponding author
  • Kumar, Manish
  • Garg, Manoj Chandra
Venue
Scientific Reports
Published
2025-01-23
Volume
15
Issue
1
Pages
2979-2979
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4406758065
Cited by
78
References
99
Citations by year
2026: 50 · 2025: 28
FWCI
19.82
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Amity University
  • King Saud University (RSP2025R356)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
methylene blue adsorption, dye removal, artificial neural networks, adaptive neuro-fuzzy inference system, response surface methodology, adsorption kinetics, pseudo-second-order kinetics, Langmuir isotherm, adsorption thermodynamics, adsorption optimization
MeSH terms
Adsorption, Coloring Agents, Hydrogen-Ion Concentration, Kinetics, Methylene Blue, Oryza, Water Pollutants, Chemical, Neural Networks, Computer, Fuzzy Logic, Spectroscopy, Fourier Transform Infrared, Water Purification, Biomass

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