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Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals

This research aims to assess the efficiency of the synthesized corncob as a cost-effective and eco-friendly adsorbent for the removal of heavy metals. Therefore, to carry out the intended research project, initially, the corncob was doped with nanoparticles to increase its efficiency or adsorption c...

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Autores principales: Gran, Sidra, Aziz, Rukhsanda, Rafiq, Muhammad Tariq, Abbasi, Maryam, Qayyum, Abdul, Elnaggar, Ashraf Y., Elganzory, Hussein H., El-Bahy, Zeinhom M., Hussein, Enas E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706510/
https://www.ncbi.nlm.nih.gov/pubmed/34961018
http://dx.doi.org/10.3390/polym13244464
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author Gran, Sidra
Aziz, Rukhsanda
Rafiq, Muhammad Tariq
Abbasi, Maryam
Qayyum, Abdul
Elnaggar, Ashraf Y.
Elganzory, Hussein H.
El-Bahy, Zeinhom M.
Hussein, Enas E.
author_facet Gran, Sidra
Aziz, Rukhsanda
Rafiq, Muhammad Tariq
Abbasi, Maryam
Qayyum, Abdul
Elnaggar, Ashraf Y.
Elganzory, Hussein H.
El-Bahy, Zeinhom M.
Hussein, Enas E.
author_sort Gran, Sidra
collection PubMed
description This research aims to assess the efficiency of the synthesized corncob as a cost-effective and eco-friendly adsorbent for the removal of heavy metals. Therefore, to carry out the intended research project, initially, the corncob was doped with nanoparticles to increase its efficiency or adsorption capacity. The prepared adsorbent was evaluated for the adsorption of cadmium (Cd) and chromium (Cr) from aqueous media with the batch experiment method. Factors that affect the adsorption process are pH, initial concentration, contact time and adsorbent dose. The analysis of Cd and Cr was performed by using atomic absorption spectrometry (AAS), while the characterization of the adsorbent was performed using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that there is a significant difference before and after corncob activation and doping with CeO(2) nanoparticles. The maximum removal for both Cd and Cr was at a basic pH with a contact time of 60 min at 120 rpm, which is 95% for Cd and 88% for Cr, respectively. To analyze the experimental data, a pseudo-first-order kinetic model, pseudo-second-order kinetic model, and intra-particle diffusion model were used. The kinetic adsorption studies confirmed that the experimental data were best fitted with the pseudo-second-order kinetic model (R(2) = 0.989) and intra-particle diffusion model (R(2) = 0.979). This work demonstrates that the cerium oxide/corncob nanocomposite is an inexpensive and environmentally friendly adsorbent for the removal of Cd and Cr from wastewater.
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spelling pubmed-87065102021-12-25 Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals Gran, Sidra Aziz, Rukhsanda Rafiq, Muhammad Tariq Abbasi, Maryam Qayyum, Abdul Elnaggar, Ashraf Y. Elganzory, Hussein H. El-Bahy, Zeinhom M. Hussein, Enas E. Polymers (Basel) Article This research aims to assess the efficiency of the synthesized corncob as a cost-effective and eco-friendly adsorbent for the removal of heavy metals. Therefore, to carry out the intended research project, initially, the corncob was doped with nanoparticles to increase its efficiency or adsorption capacity. The prepared adsorbent was evaluated for the adsorption of cadmium (Cd) and chromium (Cr) from aqueous media with the batch experiment method. Factors that affect the adsorption process are pH, initial concentration, contact time and adsorbent dose. The analysis of Cd and Cr was performed by using atomic absorption spectrometry (AAS), while the characterization of the adsorbent was performed using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that there is a significant difference before and after corncob activation and doping with CeO(2) nanoparticles. The maximum removal for both Cd and Cr was at a basic pH with a contact time of 60 min at 120 rpm, which is 95% for Cd and 88% for Cr, respectively. To analyze the experimental data, a pseudo-first-order kinetic model, pseudo-second-order kinetic model, and intra-particle diffusion model were used. The kinetic adsorption studies confirmed that the experimental data were best fitted with the pseudo-second-order kinetic model (R(2) = 0.989) and intra-particle diffusion model (R(2) = 0.979). This work demonstrates that the cerium oxide/corncob nanocomposite is an inexpensive and environmentally friendly adsorbent for the removal of Cd and Cr from wastewater. MDPI 2021-12-20 /pmc/articles/PMC8706510/ /pubmed/34961018 http://dx.doi.org/10.3390/polym13244464 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gran, Sidra
Aziz, Rukhsanda
Rafiq, Muhammad Tariq
Abbasi, Maryam
Qayyum, Abdul
Elnaggar, Ashraf Y.
Elganzory, Hussein H.
El-Bahy, Zeinhom M.
Hussein, Enas E.
Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title_full Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title_fullStr Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title_full_unstemmed Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title_short Development of Cerium Oxide/Corncob Nanocomposite: A Cost-Effective and Eco-Friendly Adsorbent for the Removal of Heavy Metals
title_sort development of cerium oxide/corncob nanocomposite: a cost-effective and eco-friendly adsorbent for the removal of heavy metals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706510/
https://www.ncbi.nlm.nih.gov/pubmed/34961018
http://dx.doi.org/10.3390/polym13244464
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