Abstract:
Cellulose-based sorbents are promising materials for wastewater treatment due to their
environmental friendliness, biodegradability, and high sorption capacity. This paper presents an
overview of cellulose modification methods, including carboxylation, amination, oxidation, graphene,
and plasma treatments, as well as combined approaches. Their effect on key physicochemical
properties, such as porosity, morphology, and chemical stability, is considered. Examples from the
literature confirm the effectiveness of modified cellulose sorbents in removing heavy metal ions and
organic pollutants from wastewater. The analysis shows that combined methods allow for creating
materials with improved characteristics that are resistant to extreme operating conditions. The main
advantages and disadvantages of cellulose sorbents, as well as challenges associated with their
scalability and cost-effectiveness, are discussed. The paper emphasizes the importance of further
research to advance these materials as a key element of sustainable water treatment technologies.
