Multifunctional crosslinked chitosan/nitrogen-doped graphene quantum dot for wastewater treatment
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 nanocompos...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/bb4762506603461a9bd47a033722e82b |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | 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. |
|---|