- Turkish Journal of Chemistry
- Vol: 42 Issue: 2
- Physicochemical characterization of different cellulose polymorphs/graphene oxide composites and the...
Physicochemical characterization of different cellulose polymorphs/graphene oxide composites and their antibacterial activity
Authors : Sherif Mohamed Abdel Salam Keshk, Ibrahim Sayed Yahia
Pages : 562-571
View : 8 | Download : 3
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :In order to investigate the interaction of graphene oxide (GO) with different cellulose polymorphs (I and II), we synthesized cellulose (I and II)/GO composites using the sonication method. Interestingly, no new peaks were observed in the FT-IR pattern of the cellulose (I and II)/GO composites, indicating that no chemical reactions took place between GO and cellulose. The X-ray diffraction patterns of cellulose I and II/GO composites were slightly different than those observed for cellulose I and II, indicating that some physical interactions occurred between the GO and cellulose. Unexpectedly the $d$-spacing values and the diffraction plane at the high-angle side were most likely expanded in cellulose I rather than in cellulose II by adding GO, confirming the highest reactivity of GO toward cellulose I rather than cellulose II. Furthermore, SEM images showed that the conformal coating of GO on cellulose I was larger than that on cellulose II due to the strong adhesion between the GO and cellulose I. Cellulose/GO showed antimicrobial properties, and GO was found to be promising for textile antimicrobial finishing.Keywords : Cellulose I and II, graphene oxide, X-ray diffractometer, composite, antibacterial activity