Preparation of chitosan/carbon nanotubes composites

Abstract

In this paper, multi-walled carbon nanotubes (CNTs) were first purified and oxidized by blend acid composed of vitriol and nitric acid, and then surface decorated with biopolymer chitosan via a controlled surface deposition and crosslinking process. The results showed that the diameter of CNTs became thicker because the surface of CNTs was covered with chitsoan, and the dispersion of CNTs was improved.