The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions
The adsorption of Cu<sup>2+</sup> ions from an aqueous solution using AgNPs synthesized from <i>Convolvulus arvensis</i> leaf extract was investigated. The characterization of AgNPs was investigated before and after the adsorption of Cu<sup>2+</sup> ions via Fouri...
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| Format: | Article |
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MDPI AG
2020-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/14/4840 |
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| author | Ghadah M. Al-Senani Nada Al-Kadhi |
| author_facet | Ghadah M. Al-Senani Nada Al-Kadhi |
| author_sort | Ghadah M. Al-Senani |
| collection | DOAJ |
| description | The adsorption of Cu<sup>2+</sup> ions from an aqueous solution using AgNPs synthesized from <i>Convolvulus arvensis</i> leaf extract was investigated. The characterization of AgNPs was investigated before and after the adsorption of Cu<sup>2+</sup> ions via Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDS), and scanning electron microscopy (SEM) analyses. The adsorbent contained various functional groups in addition to the AgNPs, which contributed to the Cu<sup>2+</sup> ions adsorption. The silver nanoparticle surface consisted of spherical particles and deep pores, which adsorbed numerous Cu<sup>2+</sup> ions. The influences of dosage, pH, and contact time on adsorption of 10 and 50 mg/L Cu<sup>2+</sup> at 298 K, and initial Cu<sup>2+</sup> concentrations at 298 and 323 K were studied. It was found that the highest percentage of Cu<sup>2+</sup> ions adsorbed from an aqueous solution was 98.99%; the aqueous solution had 10 mg/L of Cu<sup>2+</sup> ions and 0.2 g of AgNPs, at pH 12 and 298 K. A pseudo-second kinetics model offered the most accurate description of the process of adsorption. The process of Cu<sup>2+</sup> adsorption more resembled a Langmuir rather than a Freundlich isotherm model, including chemical and physical mixed adsorption (mixed adsorption) processes, and was exothermic and spontaneous. |
| first_indexed | 2024-03-10T18:30:04Z |
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| id | doaj.art-dcef57442111402e9c03eb6a2219f338 |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:30:04Z |
| publishDate | 2020-07-01 |
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| spelling | doaj.art-dcef57442111402e9c03eb6a2219f3382023-11-20T06:45:07ZengMDPI AGApplied Sciences2076-34172020-07-011014484010.3390/app10144840The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous SolutionsGhadah M. Al-Senani0Nada Al-Kadhi1Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaThe adsorption of Cu<sup>2+</sup> ions from an aqueous solution using AgNPs synthesized from <i>Convolvulus arvensis</i> leaf extract was investigated. The characterization of AgNPs was investigated before and after the adsorption of Cu<sup>2+</sup> ions via Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDS), and scanning electron microscopy (SEM) analyses. The adsorbent contained various functional groups in addition to the AgNPs, which contributed to the Cu<sup>2+</sup> ions adsorption. The silver nanoparticle surface consisted of spherical particles and deep pores, which adsorbed numerous Cu<sup>2+</sup> ions. The influences of dosage, pH, and contact time on adsorption of 10 and 50 mg/L Cu<sup>2+</sup> at 298 K, and initial Cu<sup>2+</sup> concentrations at 298 and 323 K were studied. It was found that the highest percentage of Cu<sup>2+</sup> ions adsorbed from an aqueous solution was 98.99%; the aqueous solution had 10 mg/L of Cu<sup>2+</sup> ions and 0.2 g of AgNPs, at pH 12 and 298 K. A pseudo-second kinetics model offered the most accurate description of the process of adsorption. The process of Cu<sup>2+</sup> adsorption more resembled a Langmuir rather than a Freundlich isotherm model, including chemical and physical mixed adsorption (mixed adsorption) processes, and was exothermic and spontaneous.https://www.mdpi.com/2076-3417/10/14/4840AgNPsCu<sup>2+</sup>green synthesisadsorptionnanoparticles |
| spellingShingle | Ghadah M. Al-Senani Nada Al-Kadhi The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions Applied Sciences AgNPs Cu<sup>2+</sup> green synthesis adsorption nanoparticles |
| title | The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions |
| title_full | The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions |
| title_fullStr | The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions |
| title_full_unstemmed | The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions |
| title_short | The Synthesis and Effect of Silver Nanoparticles on the Adsorption of Cu<sup>2+</sup> from Aqueous Solutions |
| title_sort | synthesis and effect of silver nanoparticles on the adsorption of cu sup 2 sup from aqueous solutions |
| topic | AgNPs Cu<sup>2+</sup> green synthesis adsorption nanoparticles |
| url | https://www.mdpi.com/2076-3417/10/14/4840 |
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