Show simple item record

AuthorAlharbi, Hattan A.
AuthorHameed, Bassim H.
AuthorAlotaibi, Khaled D.
AuthorAl-Oud, Saud S.
AuthorAl-Modaihsh, Abdullah S.
Available date2023-03-30T10:08:37Z
Publication Date2023-01-25
Publication NameMaterials Research Express
Identifierhttp://dx.doi.org/10.1088/2053-1591/acb2b6
CitationAlharbi, H. A., Hameed, B. H., Alotaibi, K. D., Al-Oud, S., & Al-Modaihsh, A. S. (2023). Conversion of a mixture of date palm wastes to mesoporous activated carbon for efficient dye adsorption. Materials Research Express.
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85147141466&origin=inward
URIhttp://hdl.handle.net/10576/41536
AbstractIn this study, we aimed to develop mixture activated carbon (MAC) from a mixture of date palm wastes (petiole, rachis and fiber) through hydrothermal carbonization and microwave-assisted H3PO4 activation and evaluate its adsorption capacity to remove Remazol brilliant blue R (RBBR) from aqueous solution. The MAC was found to be mesoporous, with an average pore diameter and BET surface area of 2.61 nm and 641.23 m2 g−1, respectively. The zeta potential and FTIR results demonstrated that the surface of MAC was negatively charged in its natural state and filled with functional groups such as phenyl, secondary amine, alkyne, aldehyde, and hydroxy groups. The adsorption capacity and percentage removal of RBBR increased and decreased, respectively, when the initial concentration increased. Maximum removal of RBBR was achieved at pH 3 (96.69 mg g−1) and at 30 °C of solution temperature (85.79 mg g−1). Langmuir and pseudo-first-order were the best isotherm and kinetic models for describing the RBBR-MAC adsorption system, respectively. The thermodynamic parameters of ΔH°, ΔS°, ΔG°, and Ea implied that this adsorption system was exothermic, increased randomness at the liquid-solid interface, and was spontaneous and controlled by the physisorption type of sorption, respectively.
SponsorKing Abdulaziz City for Science and Technology - grant no. 13-ENV1102-02.
Languageen
PublisherInstitute of Physics Publishing
Subjectactivated carbon
hydrothermal carbonization
isotherm
kinetic
phoenix dactylifera l.
reactive dyes
TitleConversion of a mixture of date palm wastes to mesoporous activated carbon for efficient dye adsorption
TypeArticle
Issue Number1
Volume Number10
ESSN2053-1591
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record