Recycling Waste Cotton Cloths for the Isolation of Cellulose Nanocrystals: A Sustainable Approach.

ABSTRACT: There is an interest in the sustainable utilization of waste cotton cloths because of their enormous volume of generation and high cellulose content. Waste cotton cloths generated are disposed of in a landfill, which causes environmental pollution and leads to the waste of useful resources. In the present study, cellulose nanocrystals (CNCs) were isolated from waste cotton cloths collected from a landfill. The waste cotton cloths collected from the landfill were sterilized and cleaned using supercritical CO2 (scCO2) technology. The cellulose was extracted from scCO2-treated waste cotton cloths using alkaline pulping and bleaching processes. Subsequently, the CNCs were isolated using the H2SO4 hydrolysis of cellulose. The isolated CNCs were analyzed to determine the morphological, chemical,

SUBMITTER: Mohamed SH 

PROVIDER: S-EPMC7922772 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature