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Boyd's film diffusion model for water contaminant adsorption: Time for an upgrade?

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dc.citedby6
dc.contributor.authorChu K.H.en_US
dc.contributor.authorHashim M.A.en_US
dc.contributor.authorHayder G.en_US
dc.contributor.authorid7402453718en_US
dc.contributor.authorid7005780117en_US
dc.contributor.authorid56239664100en_US
dc.date.accessioned2025-03-03T07:42:23Z
dc.date.available2025-03-03T07:42:23Z
dc.date.issued2024
dc.description.abstractThe Boyd film diffusion model is widely used in liquid phase adsorption studies for its mathematical simplicity and straightforward data analysis. However, a lack of awareness regarding its restrictive assumptions has led to widespread misuse. The Boyd model assumes film diffusion as the rate-controlling mechanism and rests on two additional pivotal assumptions: adsorption occurs under infinite bath conditions and follows a linear equilibrium relationship. This study examines the recurrent breaches of these assumptions across a growing body of research on water contaminant adsorption. Nearly all kinetic data have been derived from finite bath experiments governed by nonlinear isotherms, which directly contradict the Boyd model's assumptions. Consequently, applying the Boyd model to such data can yield misleading results and interpretations. To address these challenges, alternative models tailored for finite bath conditions and capable of accommodating both linear and nonlinear isotherms should be considered. These models offer more accurate insights into adsorption kinetics under realistic experimental settings. While the Boyd model remains valuable under specific conditions, its stringent assumptions restrict its broader applicability. Researchers should critically assess the validity of these assumptions and explore alternative models when analyzing liquid phase adsorption kinetics to ensure robust and reliable results. ? 2024 Elsevier B.V.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo125466
dc.identifier.doi10.1016/j.molliq.2024.125466
dc.identifier.scopus2-s2.0-85198136255
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85198136255&doi=10.1016%2fj.molliq.2024.125466&partnerID=40&md5=63d5c55f60e6e6d478ea2bf5f8f9fedc
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36428
dc.identifier.volume409
dc.publisherElsevier B.V.en_US
dc.sourceScopus
dc.sourcetitleJournal of Molecular Liquids
dc.subjectAdsorption
dc.subjectDiffusion
dc.subjectKinetics
dc.subjectWater pollution
dc.subjectBatch adsorption
dc.subjectBiot number
dc.subjectChen's model
dc.subjectDiffusion model
dc.subjectFilm diffusion
dc.subjectFurusawum?smith model
dc.subjectOrthogonal distance regression
dc.subjectRectangular isotherm
dc.subjectSmith model
dc.subjectYao?chen model
dc.subjectIsotherms
dc.titleBoyd's film diffusion model for water contaminant adsorption: Time for an upgrade?en_US
dc.typeArticleen_US
dspace.entity.typePublication
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