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AuthorHeibati, Behzad
AuthorRodriguez-Couto, Susana
AuthorAmrane, Abdeltif
AuthorRafatullah, Mohd.
AuthorHawari, Alaa
AuthorAl-Ghouti, Mohammad A.
Available date2023-05-23T09:39:14Z
Publication Date2014
Publication NameJournal of Industrial and Engineering Chemistry
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.jiec.2013.10.063
URIhttp://hdl.handle.net/10576/43366
AbstractThe potential of using pumice and walnut wood activated carbon as low-cost adsorbents for the removal of the diazo dye Reactive Black 5 (RB5) from aqueous solutions was investigated. The Langmuir isotherm fit to the data specified the presence of two different natures of adsorption sites with different binding energies on the AC-W surface. Kinetic modelling showed that the adsorption behaviour and mechanism of RB5 for both adsorbents is believed to happen via surface adsorption followed by diffusion into the pores of the AC-W and pumice. The main adsorption mechanisms are hydrogen bonding, electrostatic bonding and n–π interactions.
SponsorThe authors would like to thank Tehran University of Medical Sciences (Iran) for the financial support. The authors would also like to thank Professor Yuh-Shan Ho from the department of Environmental Sciences, College of Environmental Science and Engineering, Peking University, China for his helpful and suggestions regarding the modification methods.
Languageen
PublisherElsevier
SubjectAdsorption mechanisms
Azo dyes
Isotherm and kinetic models
Pumice and walnut wood activated carbon
TitleUptake of Reactive Black 5 by pumice and walnut activated carbon: Chemistry and adsorption mechanisms
TypeArticle
Pagination2939-2947
Issue Number5
Volume Number20
dc.accessType Abstract Only


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