Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar
Abstract This study aimed to assess the value of Pachira aquatica Aubl. fruit peels by exploring their applicability in the biosorption process for the removal of Ni(II) and Cd(II) metal ions. The Pachira aquatica Aubl. fruit peel biochar (PAB) was extensively characterized through various technique...
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Nature Portfolio
2024-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-54442-w |
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| author | Talita L. S. Nascimento Karine F. S. Oliveira Joemil O. D. Junior Alexandre S. Pimenta Dulce M. A. Melo Marcus A. F. Melo Renata M. Braga |
| author_facet | Talita L. S. Nascimento Karine F. S. Oliveira Joemil O. D. Junior Alexandre S. Pimenta Dulce M. A. Melo Marcus A. F. Melo Renata M. Braga |
| author_sort | Talita L. S. Nascimento |
| collection | DOAJ |
| description | Abstract This study aimed to assess the value of Pachira aquatica Aubl. fruit peels by exploring their applicability in the biosorption process for the removal of Ni(II) and Cd(II) metal ions. The Pachira aquatica Aubl. fruit peel biochar (PAB) was extensively characterized through various techniques, including proximate analysis, helium pycnometer, XRD, SEM, point of zero charge determination, zeta potential measurement, and Boehm titration. Subsequently, kinetic, isotherm, and thermodynamic batch biosorption studies were conducted, followed by column biosorption tests. The characteristics of PAB, including low moisture content, a neutral point of zero charge, porosity, an irregular and heterogeneous structure, a negatively charged surface, and the presence of functional groups, indicate its remarkable capacity for efficiently binding with heavy metals. Biosorption equilibrium time was achieved at 300 min for both ions, fitting well with a pseudo second-order kinetic model and Langmuir isotherm model. These data suggest that the biosorption process occurred chemically in monolayer. The column C presented an exhaust volume of 1200 mL for Ni(II) and 1080 for Cd(II) and removal of 98% and 99% of removal for Ni(II) and Cd(II), respectively. In summary, PAB demonstrates substantial potential as a biosorbent for effectively removing heavy metals, making a valuable contribution to the valorization of this co-product and the mitigation of environmental pollution. |
| first_indexed | 2024-03-07T15:02:09Z |
| format | Article |
| id | doaj.art-30891b442ee94e9c91708ffd5c58dd0e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:02:09Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-30891b442ee94e9c91708ffd5c58dd0e2024-03-05T19:02:57ZengNature PortfolioScientific Reports2045-23222024-03-0114111410.1038/s41598-024-54442-wBiosorption of nickel and cadmium using Pachira aquatica Aubl. peel biocharTalita L. S. Nascimento0Karine F. S. Oliveira1Joemil O. D. Junior2Alexandre S. Pimenta3Dulce M. A. Melo4Marcus A. F. Melo5Renata M. Braga6Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do NortePostgraduate Program in Chemical Engineering, Federal University of Rio Grande do NortePostgraduate Program in Chemical Engineering, Federal University of Rio Grande do NorteAgricultural School of Jundiaí, Federal University of Rio Grande do Norte – UFRNPostgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do NorteChemical Engineering Department, Federal University of Rio Grande do NortePostgraduate Program in Chemical Engineering, Federal University of Rio Grande do NorteAbstract This study aimed to assess the value of Pachira aquatica Aubl. fruit peels by exploring their applicability in the biosorption process for the removal of Ni(II) and Cd(II) metal ions. The Pachira aquatica Aubl. fruit peel biochar (PAB) was extensively characterized through various techniques, including proximate analysis, helium pycnometer, XRD, SEM, point of zero charge determination, zeta potential measurement, and Boehm titration. Subsequently, kinetic, isotherm, and thermodynamic batch biosorption studies were conducted, followed by column biosorption tests. The characteristics of PAB, including low moisture content, a neutral point of zero charge, porosity, an irregular and heterogeneous structure, a negatively charged surface, and the presence of functional groups, indicate its remarkable capacity for efficiently binding with heavy metals. Biosorption equilibrium time was achieved at 300 min for both ions, fitting well with a pseudo second-order kinetic model and Langmuir isotherm model. These data suggest that the biosorption process occurred chemically in monolayer. The column C presented an exhaust volume of 1200 mL for Ni(II) and 1080 for Cd(II) and removal of 98% and 99% of removal for Ni(II) and Cd(II), respectively. In summary, PAB demonstrates substantial potential as a biosorbent for effectively removing heavy metals, making a valuable contribution to the valorization of this co-product and the mitigation of environmental pollution.https://doi.org/10.1038/s41598-024-54442-wBiosorptionHeavy metals removalBiomassBiosorbentWastewater treatment |
| spellingShingle | Talita L. S. Nascimento Karine F. S. Oliveira Joemil O. D. Junior Alexandre S. Pimenta Dulce M. A. Melo Marcus A. F. Melo Renata M. Braga Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar Scientific Reports Biosorption Heavy metals removal Biomass Biosorbent Wastewater treatment |
| title | Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar |
| title_full | Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar |
| title_fullStr | Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar |
| title_full_unstemmed | Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar |
| title_short | Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar |
| title_sort | biosorption of nickel and cadmium using pachira aquatica aubl peel biochar |
| topic | Biosorption Heavy metals removal Biomass Biosorbent Wastewater treatment |
| url | https://doi.org/10.1038/s41598-024-54442-w |
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