Nanofibers

Cellulose is the most available biopolymer on earth existent in wood and other lignocellulosic sources, which can be isolated as nanofibers to reinforce composites. The aim of this chapter overview was to explain cellulose nanofibers’ preparation methods from different plant sources. The chemical treatment of cellulose fibers including dilute alkali swelling, acid and base hydrolysis, and bleaching was carried out followed by a mechanical method to isolate nanofibers. In this study, the effect of few palnt source variations and mechanical processes used in extraction procedure on nanofibers morphology, crystallinity, and chemical composition was evaluated. Characteristics of extracted cellulose nanofibers obtained from different plant sources were presented as well

EFFECT OF NATURAL ZEOLITE FUNCTIONALIZED WITH TiO 2 FOR ENTEROCCOCUS FAECALIS REMOVAL FROM WATER

The aim of this paper was the syntheses of natural zeolite modified with undoped TiO 2 / nitrogen doped TiO 2 by calcination method in order to remove Enterococcus faecalis from water. The obtained materials were characterized by X-ray diffraction (XRD), UV-VIS diffuse reflectance spectroscopy (DRUV-VIS), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The antibacterial tests showed that the antibacterial activity of hybrid materials is excellent against Enterococcus faecalis

Copper-decorated carbon nanotubes-based composite electrodes for nonenzymatic detection of glucose

The aim of this study was to prepare three types of multiwall carbon nanotubes (CNT)-based composite electrodes and to modify their surface by copper electrodeposition for nonenzymatic oxidation and determination of glucose from aqueous solution. Copper-decorated multiwall carbon nanotubes composite electrode (Cu/CNT-epoxy) exhibited the highest sensitivity to glucose determination.Chemical EngineeringApplied Science