Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles
This work informs on the green synthesis of a novel adsorbent and its adsorption capacity. The adsorbent was synthesized by the combination of iron nanoparticles and cellulose nanofibers (FeNPs/NFCs). Cellulose nanofibers (NFCs) were obtained from Moringa (<i>Moringa oleifera</i> Lam.) b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/2073-4441/13/1/89 |
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| author | Adriana Vázquez-Guerrero Raúl Cortés-Martínez Ruth Alfaro-Cuevas-Villanueva Eric M. Rivera-Muñoz Rafael Huirache-Acuña |
| author_facet | Adriana Vázquez-Guerrero Raúl Cortés-Martínez Ruth Alfaro-Cuevas-Villanueva Eric M. Rivera-Muñoz Rafael Huirache-Acuña |
| author_sort | Adriana Vázquez-Guerrero |
| collection | DOAJ |
| description | This work informs on the green synthesis of a novel adsorbent and its adsorption capacity. The adsorbent was synthesized by the combination of iron nanoparticles and cellulose nanofibers (FeNPs/NFCs). Cellulose nanofibers (NFCs) were obtained from Moringa (<i>Moringa oleifera</i> Lam.) by a pulping Kraft process, acid hydrolysis, and ultrasonic methods. The adsorption method has advantages such as high heavy metal removal in water treatment. Therefore, cadmium (Cd) and lead (Pb) adsorption with FeNP/NFC from aqueous solutions in batch systems was investigated. The kinetic, isotherm, and thermodynamic parameters, as well as the adsorption capacities of FeNP/NFC in each system at different temperatures, were evaluated. The adsorption kinetic data were fitted to mathematical models, so the pseudo-second-order kinetic model described both Cd and Pb. The kinetic rate constant (<i>K</i><sub>2</sub>), was higher for Cd than for Pb, indicating that the metal adsorption was very fast. The adsorption isotherm data were best described by the Langmuir–Freundlich model for Pb multilayer adsorption. The Langmuir model described Cd monolayer sorption. However, experimental maximum adsorption capacities (<i>q<sub>e exp</sub></i>) for Cd (>12 mg/g) were lower than those for Pb (>80 mg/g). In conclusion, iron nanoparticles on the FeNP/NFC composite improved Cd and Pb selectivity during adsorption processes, indicating the process’ spontaneous and exothermic nature. |
| first_indexed | 2024-03-10T13:31:26Z |
| format | Article |
| id | doaj.art-db790c50369a45e1bc523359bf16a52e |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T13:31:26Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-db790c50369a45e1bc523359bf16a52e2023-11-21T07:57:52ZengMDPI AGWater2073-44412021-01-011318910.3390/w13010089Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron NanoparticlesAdriana Vázquez-Guerrero0Raúl Cortés-Martínez1Ruth Alfaro-Cuevas-Villanueva2Eric M. Rivera-Muñoz3Rafael Huirache-Acuña4División de Estudios de Posgrado, Facultad Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo Edificio M, Ciudad Universitaria, C.P. 58030 Morelia, MexicoFacultad de Químico Farmacobiología, Universidad Michoacana de San Nicolás de Hidalgo, Tzintzuntzan 173, Colonia Matamoros, C.P. 58240 Morelia, MexicoInstituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Edificio U5, Ciudad Universitaria, C.P. 58030 Morelia, MexicoCentro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, C.P. 76230 Querétaro, MexicoDivisión de Estudios de Posgrado, Facultad Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo Edificio M, Ciudad Universitaria, C.P. 58030 Morelia, MexicoThis work informs on the green synthesis of a novel adsorbent and its adsorption capacity. The adsorbent was synthesized by the combination of iron nanoparticles and cellulose nanofibers (FeNPs/NFCs). Cellulose nanofibers (NFCs) were obtained from Moringa (<i>Moringa oleifera</i> Lam.) by a pulping Kraft process, acid hydrolysis, and ultrasonic methods. The adsorption method has advantages such as high heavy metal removal in water treatment. Therefore, cadmium (Cd) and lead (Pb) adsorption with FeNP/NFC from aqueous solutions in batch systems was investigated. The kinetic, isotherm, and thermodynamic parameters, as well as the adsorption capacities of FeNP/NFC in each system at different temperatures, were evaluated. The adsorption kinetic data were fitted to mathematical models, so the pseudo-second-order kinetic model described both Cd and Pb. The kinetic rate constant (<i>K</i><sub>2</sub>), was higher for Cd than for Pb, indicating that the metal adsorption was very fast. The adsorption isotherm data were best described by the Langmuir–Freundlich model for Pb multilayer adsorption. The Langmuir model described Cd monolayer sorption. However, experimental maximum adsorption capacities (<i>q<sub>e exp</sub></i>) for Cd (>12 mg/g) were lower than those for Pb (>80 mg/g). In conclusion, iron nanoparticles on the FeNP/NFC composite improved Cd and Pb selectivity during adsorption processes, indicating the process’ spontaneous and exothermic nature.https://www.mdpi.com/2073-4441/13/1/89cadmiumleadadsorptioncellulose nanofibrilsiron nanoparticles |
| spellingShingle | Adriana Vázquez-Guerrero Raúl Cortés-Martínez Ruth Alfaro-Cuevas-Villanueva Eric M. Rivera-Muñoz Rafael Huirache-Acuña Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles Water cadmium lead adsorption cellulose nanofibrils iron nanoparticles |
| title | Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles |
| title_full | Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles |
| title_fullStr | Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles |
| title_full_unstemmed | Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles |
| title_short | Cd(II) and Pb(II) Adsorption Using a Composite Obtained from <em>Moringa oleifera</em> Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles |
| title_sort | cd ii and pb ii adsorption using a composite obtained from em moringa oleifera em lam cellulose nanofibrils impregnated with iron nanoparticles |
| topic | cadmium lead adsorption cellulose nanofibrils iron nanoparticles |
| url | https://www.mdpi.com/2073-4441/13/1/89 |
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