Removal of toxic metal ions from wastewater using ZnO@Chitosan core-shell nanocomposite

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Saad A.H.A.; Azzam A.M.; El-Wakeel S.T.; Mostafa B.B.; Abd El-latif M.B.

Journal: Environmental Nanotechnology, Monitoring and Management

Publisher: Elsevier B.V.

Publication Date: May 2018

Volume / Issue: Volume 9

Pages: 67–75

ISSN: 22151532

DOI: 10.1016/j.enmm.2017.12.004

Scopus: View on Scopus

Document Type: Article

Authors and Affiliations

Saad A.H.A., Department of Zoology, Faculty of Science, Ain-Shams University, Cairo, 11566, Egypt; Azzam A.M., Department of Environmental Researches, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza, P.O. Box 30 No. 12411, Egypt; El-Wakeel S.T., Water Pollution Research Department, National Research Centre, 33 El Bohouth St, Giza, 12622, Dokki, Egypt; Mostafa B.B., Department of Environmental Researches, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza, P.O. Box 30 No. 12411, Egypt; Abd El-latif M.B., Department of Environmental Researches, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza, P.O. Box 30 No. 12411, Egypt

Abstract

Presently, there is increased attention and focus on heavy metals due to their adverse health effects. The purpose of this work was to fabricate ZnO@Chitosan core/organically shell nanocomposite (ZOCS) to remove Pb(II), Cd(II) and Cu(II) ions from polluted water. The results of adsorbent characterization by TEM, FE-SEM, EDX and FTIR revealed the formation of round shape particles with average size 58 nm. The optimum removal efficacy for Cu(II), Pb(II) and Cd(II) was recorded at pH 4, 6 and 6.5, respectively. According to Langmuir isotherm model, the metal ions adsorption capacity were 476.1, 135.1 and 117.6 mg/g, for Pb(II),Cd(II) and Cu(II) respectively. Continuous adsorption-desorption cyclic results demonstrated that ZOCS NC can be reused after recovery of ions by disodium salt of EDTA solution, and the renovated ZOCS can be used many times without significant efficiency loss satisfied the increasing need for the purification of water resources. © 2018 Elsevier B.V.

Keywords

Adsorption; Nanocomposite; Toxic metals; Wastewater treatment; ZnO@Chitosan

Citation Information

Scopus Citations: 157

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