Multifunctional crosslinked chitosan/nitrogen-doped graphene quantum dot for wastewater treatment

Abdelfattah Amari; Noureddine Elboughdiri; Djamel Ghernaout; Ramzi Hadj Lajimi; Ali M. Alshahrani; Mohamed A. Tahoon; Faouzi Ben Rebah

Ain Shams Engineering Journal (Dec 2021)

Multifunctional crosslinked chitosan/nitrogen-doped graphene quantum dot for wastewater treatment

Abdelfattah Amari,
Noureddine Elboughdiri,
Djamel Ghernaout,
Ramzi Hadj Lajimi,
Ali M. Alshahrani,
Mohamed A. Tahoon,
Faouzi Ben Rebah

Affiliations

Abdelfattah Amari: Department of Chemical Engineering, College of Engineering, King Khalid University, PO Box 9004, Abha 61413, Saudi Arabia; Chemical Engineering Department, Research Laboratory: Energy and Environment, National School of Engineers, Gabes University, Gabes 6072, Tunisia; Corresponding authors at: Department of Chemical Engineering, College of Engineering, King Khalid University, PO Box 9004, Abha 61413, Saudi Arabia (A. Amari); Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia (M.A. Tahoon).
Noureddine Elboughdiri: Chemical Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha'il 81441, Saudi Arabia; Chemical Engineering Department, Modeling Analysis and Control of Systems, National School of Engineering Gabes, University of Gabes, Gabes 6072, Tunisia
Djamel Ghernaout: Chemical Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha'il 81441, Saudi Arabia; Chemical Engineering Department, Faculty of Engineering, University of Blida, P.O. Box 270, Blida 09000, Algeria
Ramzi Hadj Lajimi: Department of Chemistry, College of Science, University of Ha’il, P.O. Box 2440, Ha'il 81441, Saudi Arabia; Laboratory of Water, Membranes and Environmental Biotechnologies, Center of Researches and Water Technologies, P. B 273, 8020 Soliman, Tunisia
Ali M. Alshahrani: Laboratory of Water, Membranes and Environmental Biotechnologies, Center of Researches and Water Technologies, P. B 273, 8020 Soliman, Tunisia
Mohamed A. Tahoon: Laboratory of Water, Membranes and Environmental Biotechnologies, Center of Researches and Water Technologies, P. B 273, 8020 Soliman, Tunisia; Chemistry Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt; Corresponding authors at: Department of Chemical Engineering, College of Engineering, King Khalid University, PO Box 9004, Abha 61413, Saudi Arabia (A. Amari); Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia (M.A. Tahoon).
Faouzi Ben Rebah: Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Higher Institute of Biotechnology of Sfax (ISBS), Sfax University, P.O. Box 263, Sfax 3000, Tunisia

Journal volume & issue: Vol. 12, no. 4
pp. 4007 – 4014

Abstract

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The fabrication of multifunctional nanomaterial for the adsorption of different types of pollutants is a challenge and could be a solution for many problems associated with wastewater treatment. This current study propose the use of crosslinked chitosan/nitrogen doped-graphene quantum dot nanocomposites (CS/NGQD) synthesized via glutaraldehyde as cross-linker to remove various pollutants including bacteria, proteins, fluoride, dyes, and pharmaceuticals. This nanomaterial was characterized using different techniques (FT-IR, XRD, SEM, TEM, and Raman spectroscopy). This nanocomposite offered higher pollutants removal efficiencies compared to its component parts. Using CS/NGQD the removal reached 60% for proteins and 88% for the bacterial load. A significant removal enhancement was also obtained for pharmaceuticals (63% for chlorothiazide, 81% for carbamazepine, and 89% ranitidine), dyes (82% for Azo blue, 84% for methylene blue and 94% for orange G), and fluoride (42%). Interestingly, after 5 cycles of reuse, the nanocomposite remains efficient for the removal of pollutants from water.

Published in Ain Shams Engineering Journal

ISSN: 2090-4479 (Print); 2090-4495 (Online)
Publisher: Elsevier
Country of publisher: Egypt
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/ain-shams-engineering-journal/

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