PREPARATION OF TEMPO-CELLULOSE NANOFIBER/ZINC OXIDE AS ANTIMICROBIAL AND METHYLENE BLUE PHOTO-DEGRADING NANOCOMPOSITE-Reference-Cited by-同舟云学术

PREPARATION OF TEMPO-CELLULOSE NANOFIBER/ZINC OXIDE AS ANTIMICROBIAL AND METHYLENE BLUE PHOTO-DEGRADING NANOCOMPOSITE

Published:2021-04-20 Issue:3-4 Volume:55 Page:365-373
ISSN:0576-9787
Container-title:Cellulose Chemistry and Technology
language:
Short-container-title:Cellulose Chem. Technol.

Author:

EL-SAKHAWY MOHAMED¹,SALAMA AHMED¹,EL-ZIATY AHMED K.²,HASSAN HAZEM³

Affiliation:

1. Cellulose and Paper Department, National Research Centre, 33 El-Bohouth st., Dokki, P.O. 12622, Giza, Egypt

2. Chemistry Department, Faculty of Science, Ain Shams University Abbassia, Cairo, Egypt

3. Greater Cairo Sanitary Drainage Company (GCSDC), Central Labs, Cairo, Egypt

Abstract

"Photo-catalytic degradation of organic dyes in aquatic environments under visible light irradiation affords an efficient and economic technique for environmental remediation. TEMPO-oxidized cellulose nanofibers/zinc oxide nanocomposite (TEMPO-CNF/ZnO) was prepared through oxidation of cellulose pulp, followed by zinc oxide precipitation in the presence of oxidized fibers. TEMPO-CNF/ZnO was characterized by different techniques. The degradation rate of methylene blue (MB) by TEMPO-CNF/ZnO was gradually increased with increasing pH and the degradation reached 86% within 340 minutes at pH 7. The kinetic study showed that the pseudo-first-order kinetic best fitted the photo-catalytic process. A mechanism was proposed for the degradation of MB using TEMPO-CNF/ZnO under visible light irradiation. TEMPO-CNF/ZnO showed high antibacterial activity against S. aureus and E. coli. Thus, the TEMPO-CNF/ZnO nanocomposite has been demonstrated to be an effective photo-catalytic material for degrading MB under visible light irradiation."

Publisher

Institutul de Chimie Macromoleculara Petru Poni

Subject

Materials Chemistry,Organic Chemistry

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