Preparation of Nanocellulose from waste of Cotton Lint

Abstract

The aim of the current study is to prepare nanocellulose (NC) from agricultural wastes: cotton lint rather than throwing it into waste which increases pollution of the environment and thereby reduces environmental pollution to some extent. In this study, the nanocellulose was prepared by acid hydrolysis using sulfuric acid at a concentration (30) % for cotton lint to dissolve the raw materials by sulfuric acid and extract cellulose. It also converts it to nanocellulose by using renewable and advanced methods by the ultrasonic processor for different times at (30-180) minutes. And the outcome was a fine powder with good quality that could have been used in other processes and methods. By completely removing lignin and hemicellulose, Atomic force microscope (AFM) photos demonstrated the smooth surface and small nanoparticles of cotton lint-derived Nano cellulose, while Fourier transform infrared spectroscopy (FTIR) measurements demonstrated the purity of cellulose. 3.303 nm is reported to be the average roughness of cotton lint-derived nanocellulose. There are numerous uses for the manufactured cellulose nanoparticles. Because of this, we think that in the near future, cotton lint with a high cellulose content will be a great source of inexpensive raw materials.