Publication:
A novel oil palm frond magnetic biochar for the efficient adsorption of crystal violet and sunset yellow dyes from aqueous solution: synthesis, kinetics, isotherm, mechanism and reusability studies

Simple item page
dc.citedby14
dc.contributor.authorOyekanmi A.A.en_US
dc.contributor.authorKatibi K.K.en_US
dc.contributor.authorOmar R.C.en_US
dc.contributor.authorAhmad A.en_US
dc.contributor.authorElbidi M.en_US
dc.contributor.authorAlshammari M.B.en_US
dc.contributor.authorShitu I.G.en_US
dc.contributor.authorid58679446300en_US
dc.contributor.authorid57221808705en_US
dc.contributor.authorid35753735300en_US
dc.contributor.authorid36022073300en_US
dc.contributor.authorid57874776400en_US
dc.contributor.authorid57653516000en_US
dc.contributor.authorid57215830855en_US
dc.date.accessioned2025-03-03T07:45:21Z
dc.date.available2025-03-03T07:45:21Z
dc.date.issued2024
dc.description.abstractThis study presented a facile synthesis route via the precipitation method for the production of magnetic biochar from oil palm frond (OPF). The physicochemical characteristics including surface, functional, and magnetic properties of the synthesized magnetic biochar revealed that the surface morphology, porosity, and magnetic properties enhanced its adsorption capacity for the removal of crystal violet (CV) and sunset yellow (SY) from aqueous solution. The saturation magnetization of OPF biochar was found to be 8.41�emu/g, coercivity (Hc) of 83.106�G, and retentivity (Mr) of 1.475�emu/g which implies that OPF magnetic biochar can be facilely separated from aqueous solution. The result also demonstrated superparamagnetic properties which provided suitable magnetic responsive characteristics to an external magnetic field. The interactive effect of the operational conditions of pH, adsorbent dosage, initial concentration, and temperature was investigated in a batch adsorption study using the central composite design (CCD) of the response surface methodology (RSM). It was indicated that an increase in adsorbent dosage to 1.0�g/L at a lower initial concentration (50�ppm) conducted at 20��C favoured optimum removal of CV and SY at pH 11 and 4, respectively. The Langmuir isotherm model with maximum adsorption capacity (qmax) of 149.03 and 342.47�mg/g was achieved for CV and SY dyes, respectively. The kinetic data proved to be best fitted to the pseudo-second-order kinetic model. Thermodynamic parameters revealed spontaneous and endothermic reactions. The suitability and sustainability of the magnetic biochar were enhanced by its regeneration potential for effective adsorption of CV and SY after 5 cycles which indicates its outstanding reusability. Hence, OPF magnetic biochar exhibited prospective application for the removal of dyes from wastewater. ? 2024, The Author(s).en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo13
dc.identifier.doi10.1007/s13201-023-02060-8
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85181748424
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85181748424&doi=10.1007%2fs13201-023-02060-8&partnerID=40&md5=f5f3abb84fb5efe65c304eca09504652
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36869
dc.identifier.volume14
dc.publisherSpringer Science and Business Media Deutschland GmbHen_US
dc.relation.ispartofAll Open Access; Gold Open Access
dc.sourceScopus
dc.sourcetitleApplied Water Science
dc.subjectAdsorption
dc.subjectAzo dyes
dc.subjectIsotherms
dc.subjectKinetics
dc.subjectMagnetic properties
dc.subjectMolar ratio
dc.subjectMorphology
dc.subjectPalm oil
dc.subjectPhysicochemical properties
dc.subjectPrecipitation (chemical)
dc.subjectSaturation magnetization
dc.subjectStripping (dyes)
dc.subjectSurface morphology
dc.subjectSurface properties
dc.subjectAdsorbent dosage
dc.subjectAdsorption capacities
dc.subjectBiochar
dc.subjectCrystal violet
dc.subjectEmpirical model
dc.subjectEnergy
dc.subjectMagnetic biochar
dc.subjectOil palm frond
dc.subjectResponse-surface methodology
dc.subjectSunset yellows
dc.subjectadsorption
dc.subjectaqueous solution
dc.subjectbiochar
dc.subjectdye
dc.subjectisotherm
dc.subjectmodeling
dc.subjectreaction kinetics
dc.subjectrecycling
dc.subjectresponse surface methodology
dc.subjectReusability
dc.titleA novel oil palm frond magnetic biochar for the efficient adsorption of crystal violet and sunset yellow dyes from aqueous solution: synthesis, kinetics, isotherm, mechanism and reusability studiesen_US
dc.typeArticleen_US
dspace.entity.typePublication
Files
Collections
SCOPUS