Oxidized alginate/gelatin decorated silver nanoparticles as new nanocomposite for dye adsorption.

Autor: Abou-Zeid RE; Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt. Electronic address: r_abouzeid2002@yahoo.com., Awwad NS; Research Centre for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia., Nabil S; Department of Chemistry, College of Science, Imam Abdulrahman Bin Fasial University, P.O. Box 1982, Dammam 31441, Saudi Arabia., Salama A; Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt., Youssef MA; Analytical Chemistry and Control Department, Hot Laboratories Center, Atomic Energy Authority of Egypt, P.O. 13759 Abu Zaabal, Cairo, Egypt.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2019 Dec 01; Vol. 141, pp. 1280-1286. Date of Electronic Publication: 2019 Sep 10.
DOI: 10.1016/j.ijbiomac.2019.09.076
Abstrakt: In the current article di-aldehyde alginate (DAA) crosslinking gelatin (Ge) hydrogel was prepared and investigated for stabilizing silver nanoparticles. DAA/Ge decorated silver nanoparticles hydrogel was characterized by IR, XRD, TGA, SEM and AFM. The outcomes demonstrate that silver nanoparticles with uniform sizes were homogenously distributed through DAA/Ge hydrogel. DAA/Ge decorated silver nanocomposite was examined for the rejection of methylene blue (MB) from aqueous solutions. Comparing with DAA/Ge hydrogel, the nanocomposite has high efficiency for removal of MB. The highest MB removal efficiency was observed at pH 7 and the adsorption process is well described by pseudo-second order and Langmuir adsorption model with adsorption capacity of 625 mg/g. Our results proved that the DAA/Ge/Ag nanocomposite could be used for removal of MB from decontaminated solutions.
(Copyright © 2019. Published by Elsevier B.V.)
Databáze: MEDLINE
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