Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations
Abstract The simultaneous removal of Cadmium ions and reactive yellow 4 dye (RY4 dye) by bone meal-derived apatite (BMDA) were investigated in a batch process. The structural elucidation of the prepared BMDA was done using TEM, XRD, FT-IR and EDX to evaluate the structures of the adsorbent. Differen...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-02-01
|
| Series: | Journal of Analytical Science and Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40543-020-0206-0 |
| _version_ | 1818615537255579648 |
|---|---|
| author | Edwin A. Ofudje Idowu A. Adeogun Mopelola A. Idowu Sarafadeen O. Kareem Nelly A. Ndukwe |
| author_facet | Edwin A. Ofudje Idowu A. Adeogun Mopelola A. Idowu Sarafadeen O. Kareem Nelly A. Ndukwe |
| author_sort | Edwin A. Ofudje |
| collection | DOAJ |
| description | Abstract The simultaneous removal of Cadmium ions and reactive yellow 4 dye (RY4 dye) by bone meal-derived apatite (BMDA) were investigated in a batch process. The structural elucidation of the prepared BMDA was done using TEM, XRD, FT-IR and EDX to evaluate the structures of the adsorbent. Different experimental features such as the agitation time, BMDA dosage, temperature, initial adsorbate concentration and pH of the solution were examined on the uptake pattern of the pollutants. The mechanism of adsorption was examined with Elovich, pseudo-first-order, intraparticle diffusion and pseudo-second-order kinetic models, while Langmuir, Dubinin-Radushkevich (D-R), Freundlich and Tempkin isotherms were exploited in order to describe the behaviour of the equilibrium process. Analysis from XRD revealed peaks corresponding to single phase apatite powder, while the various forces responsible for the interactions between the BMDA surface and the pollutants were obtained to CO3 2−, OH− and PO4 3− as observed by FT-IR analysis. SEM and TEM investigations confirmed a round-like morphology which agglomerated together upon the adsorption of pollutants. The kinetic modelling of the adsorption data were well illustrated with the pseudo-first-order model with correlation coefficient (R 2) values ranging from 0.997 to 0.999. Isotherms studies revealed that best fit was achieved with Langmuir isotherm with adsorption capacities of 94.85 and 116.16 mg/g for RY4 dye and Cd(II) ions respectively. Thermodynamic study signified the uptake of the pollutants to be spontaneous, feasible and endothermic in nature. The values of entropy change (ΔS) for the sorption processes calculated are 86.57 and 60.16 J/mol/K for Cd(II) and RY4 dye, respectively. |
| first_indexed | 2024-12-16T16:35:29Z |
| format | Article |
| id | doaj.art-46b69c250ba149b7a9e1e082ace82f7a |
| institution | Directory Open Access Journal |
| issn | 2093-3371 |
| language | English |
| last_indexed | 2024-12-16T16:35:29Z |
| publishDate | 2020-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Analytical Science and Technology |
| spelling | doaj.art-46b69c250ba149b7a9e1e082ace82f7a2022-12-21T22:24:28ZengSpringerOpenJournal of Analytical Science and Technology2093-33712020-02-0111111610.1186/s40543-020-0206-0Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluationsEdwin A. Ofudje0Idowu A. Adeogun1Mopelola A. Idowu2Sarafadeen O. Kareem3Nelly A. Ndukwe4Department of Chemical Sciences, Mountain Top UniversityDepartment of Chemistry, Federal University of AgricultureDepartment of Chemistry, Federal University of AgricultureDepartment of Microbiology, Federal University of AgricultureDepartment of Chemical Sciences, Mountain Top UniversityAbstract The simultaneous removal of Cadmium ions and reactive yellow 4 dye (RY4 dye) by bone meal-derived apatite (BMDA) were investigated in a batch process. The structural elucidation of the prepared BMDA was done using TEM, XRD, FT-IR and EDX to evaluate the structures of the adsorbent. Different experimental features such as the agitation time, BMDA dosage, temperature, initial adsorbate concentration and pH of the solution were examined on the uptake pattern of the pollutants. The mechanism of adsorption was examined with Elovich, pseudo-first-order, intraparticle diffusion and pseudo-second-order kinetic models, while Langmuir, Dubinin-Radushkevich (D-R), Freundlich and Tempkin isotherms were exploited in order to describe the behaviour of the equilibrium process. Analysis from XRD revealed peaks corresponding to single phase apatite powder, while the various forces responsible for the interactions between the BMDA surface and the pollutants were obtained to CO3 2−, OH− and PO4 3− as observed by FT-IR analysis. SEM and TEM investigations confirmed a round-like morphology which agglomerated together upon the adsorption of pollutants. The kinetic modelling of the adsorption data were well illustrated with the pseudo-first-order model with correlation coefficient (R 2) values ranging from 0.997 to 0.999. Isotherms studies revealed that best fit was achieved with Langmuir isotherm with adsorption capacities of 94.85 and 116.16 mg/g for RY4 dye and Cd(II) ions respectively. Thermodynamic study signified the uptake of the pollutants to be spontaneous, feasible and endothermic in nature. The values of entropy change (ΔS) for the sorption processes calculated are 86.57 and 60.16 J/mol/K for Cd(II) and RY4 dye, respectively.https://doi.org/10.1186/s40543-020-0206-0AdsorptionCadmiumEquilibriumApatiteKineticsRY4 dye |
| spellingShingle | Edwin A. Ofudje Idowu A. Adeogun Mopelola A. Idowu Sarafadeen O. Kareem Nelly A. Ndukwe Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations Journal of Analytical Science and Technology Adsorption Cadmium Equilibrium Apatite Kinetics RY4 dye |
| title | Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations |
| title_full | Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations |
| title_fullStr | Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations |
| title_full_unstemmed | Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations |
| title_short | Simultaneous removals of cadmium(II) ions and reactive yellow 4 dye from aqueous solution by bone meal-derived apatite: kinetics, equilibrium and thermodynamic evaluations |
| title_sort | simultaneous removals of cadmium ii ions and reactive yellow 4 dye from aqueous solution by bone meal derived apatite kinetics equilibrium and thermodynamic evaluations |
| topic | Adsorption Cadmium Equilibrium Apatite Kinetics RY4 dye |
| url | https://doi.org/10.1186/s40543-020-0206-0 |
| work_keys_str_mv | AT edwinaofudje simultaneousremovalsofcadmiumiiionsandreactiveyellow4dyefromaqueoussolutionbybonemealderivedapatitekineticsequilibriumandthermodynamicevaluations AT idowuaadeogun simultaneousremovalsofcadmiumiiionsandreactiveyellow4dyefromaqueoussolutionbybonemealderivedapatitekineticsequilibriumandthermodynamicevaluations AT mopelolaaidowu simultaneousremovalsofcadmiumiiionsandreactiveyellow4dyefromaqueoussolutionbybonemealderivedapatitekineticsequilibriumandthermodynamicevaluations AT sarafadeenokareem simultaneousremovalsofcadmiumiiionsandreactiveyellow4dyefromaqueoussolutionbybonemealderivedapatitekineticsequilibriumandthermodynamicevaluations AT nellyandukwe simultaneousremovalsofcadmiumiiionsandreactiveyellow4dyefromaqueoussolutionbybonemealderivedapatitekineticsequilibriumandthermodynamicevaluations |