Chitosan as a Heavy Metal Adsorbent in Waste Water Treatment

Saraswathi, M.; Madhuri, R. Jaya

doi:10.1007/978-3-030-46939-9_58

Cited by 2 publications

(1 citation statement)

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“…It is prepared by deacetylation of chitin, which is extracted from crustaceans such as shrimp and lobster [15,16].On account of its abundance and low cost, as well as adsorption capacity, they have gotten a lot of attention in the water and wastewater treatment industry in recent years [17,18]. Chitosanbased materials have recently shown amazing potential for efficient adsorption of heavy metals because they are rich in amino and hydroxyl groups [19,20].…”

Section: Introductionmentioning

confidence: 99%

Development and Utilization of Chitosan/Carbon Nanocomposite for Heavy Metal Removal from Wastewater

Youssef

Faze²,

El‐Aziz

2022

Egypt. J. Chem.

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Industrial or sanitary wastewater, which is rich in heavy elements, represents one of the most important environmental pollutants facing researchers. So, they are working to fabricate environmentally friendly polymers that have a high ability to absorb heavy elements. Chitosan (Cs) is a natural biopolymer that was obtained from shrimp shells using four stages deproteinization, demineralization, decoloration, and deacetylation. In addition, carbon nanoparticles (C-NPs) that were obtained from the treatment of the agriculture wastes were used with the Cs to prepare Cs/C-NPs nanocomposite (Cs/C-NC). Both the prepared Cs and Cs/C-NC were used in water treatment for metal ions (Cr, Cu, Zn, Ni, Cd, and Pb) removal. Fourier Transform Infrared Spectroscopy (FTIR), transmission electron microscope (TEM), and XRD were used to characterize the prepared adsorbents. The adsorption of heavy metals by the prepared samples was investigated as well as the kinetic and isotherm studies. The results exhibited that the quantity of the heavy metals ions uptake by Cs/C-NC was higher than Chitosan alone. Furthermore, the adsorption of various ions with the aid of Cs and Cs/C-NC was examined within varied parameters. Additionally, the kinetic studies of the absorption of Cs and Cs/C-NC for various ions obey Pseudo-second-order. Moreover, the isotherm studies obey Langmuir isotherm for Cs whereas obey Freundlich isotherm for Cs/C-NC except for Zn ions that obey Langmuir isotherm.

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