Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies
In this study, Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub> functionalized with 3-aminopropyltriethoxysilane (Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS) nanocomposite was investigated as a nanoadsorbent for the removal of C...
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MDPI AG
2021-05-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/11/3209 |
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| author | Aphiwe Siyasanga Gugushe Anele Mpupa Tshimangadzo Saddam Munonde Luthando Nyaba Philiswa Nosizo Nomngongo |
| author_facet | Aphiwe Siyasanga Gugushe Anele Mpupa Tshimangadzo Saddam Munonde Luthando Nyaba Philiswa Nosizo Nomngongo |
| author_sort | Aphiwe Siyasanga Gugushe |
| collection | DOAJ |
| description | In this study, Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub> functionalized with 3-aminopropyltriethoxysilane (Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS) nanocomposite was investigated as a nanoadsorbent for the removal of Cd(II), Cu(II), Mn (II) and Ni(II) ions from aqueous solution and real samples in batch mode systems. The prepared magnetic nanomaterials were characterized using X-ray powder diffraction (XRD), scanning electron microscopy/energy dispersion x-ray (SEM/EDX) Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). Factors (such as adsorbent dose and sample pH) affecting the adsorption behavior of the removal process were studied using the response surface methodology. Under optimized condition, equilibrium data obtained were fitted into the Langmuir and Freundlich isotherms and the data fitted well with Langmuir isotherms. Langmuir adsorption capacities (mg/g) were found to be 113, 111, 128, and 123 mg/g for Cd, Cu, Ni and Mn, respectively. In addition, the adsorption kinetics was analyzed using five kinetic models, pseudo-first order, pseudo-second order, intraparticle diffusion and Boyd models. The adsorbent was successfully applied for removal of Cd(II), Cu(II), Mn (II) and Ni(II) ions in wastewater samples. |
| first_indexed | 2024-03-10T10:59:29Z |
| format | Article |
| id | doaj.art-71dfc4f84d0b44ffb1d936bc367611c8 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T10:59:29Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-71dfc4f84d0b44ffb1d936bc367611c82023-11-21T21:37:03ZengMDPI AGMolecules1420-30492021-05-012611320910.3390/molecules26113209Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm StudiesAphiwe Siyasanga Gugushe0Anele Mpupa1Tshimangadzo Saddam Munonde2Luthando Nyaba3Philiswa Nosizo Nomngongo4Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South AfricaIn this study, Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub> functionalized with 3-aminopropyltriethoxysilane (Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS) nanocomposite was investigated as a nanoadsorbent for the removal of Cd(II), Cu(II), Mn (II) and Ni(II) ions from aqueous solution and real samples in batch mode systems. The prepared magnetic nanomaterials were characterized using X-ray powder diffraction (XRD), scanning electron microscopy/energy dispersion x-ray (SEM/EDX) Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). Factors (such as adsorbent dose and sample pH) affecting the adsorption behavior of the removal process were studied using the response surface methodology. Under optimized condition, equilibrium data obtained were fitted into the Langmuir and Freundlich isotherms and the data fitted well with Langmuir isotherms. Langmuir adsorption capacities (mg/g) were found to be 113, 111, 128, and 123 mg/g for Cd, Cu, Ni and Mn, respectively. In addition, the adsorption kinetics was analyzed using five kinetic models, pseudo-first order, pseudo-second order, intraparticle diffusion and Boyd models. The adsorbent was successfully applied for removal of Cd(II), Cu(II), Mn (II) and Ni(II) ions in wastewater samples.https://www.mdpi.com/1420-3049/26/11/3209heavy metalsadsorptionkineticsisothermsFe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS nanocompositewastewater |
| spellingShingle | Aphiwe Siyasanga Gugushe Anele Mpupa Tshimangadzo Saddam Munonde Luthando Nyaba Philiswa Nosizo Nomngongo Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies Molecules heavy metals adsorption kinetics isotherms Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS nanocomposite wastewater |
| title | Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies |
| title_full | Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies |
| title_fullStr | Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies |
| title_full_unstemmed | Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies |
| title_short | Adsorptive Removal of Cd, Cu, Ni and Mn from Environmental Samples Using Fe<sub>3</sub>O<sub>4</sub>-Zro<sub>2</sub>@APS Nanocomposite: Kinetic and Equilibrium Isotherm Studies |
| title_sort | adsorptive removal of cd cu ni and mn from environmental samples using fe sub 3 sub o sub 4 sub zro sub 2 sub aps nanocomposite kinetic and equilibrium isotherm studies |
| topic | heavy metals adsorption kinetics isotherms Fe<sub>3</sub>O<sub>4</sub>-ZrO<sub>2</sub>@APS nanocomposite wastewater |
| url | https://www.mdpi.com/1420-3049/26/11/3209 |
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