Affiliation:
1. Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
2. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
3. Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
Abstract
The pollution and scarcity of freshwater resources are global problems that have a significant influence on human life. It is very important to remove harmful substances in the water to realize the recycling of water resources. Hydrogels have recently attracted attention due to their special three-dimensional network structure, large surface area, and pores, which show great potential for the removal of pollutants in water. In their preparation, natural polymers are one of the preferred materials because of their wide availability, low cost, and easy thermal degradation. However, when it is directly used for adsorption, its performance is unsatisfactory, so it usually needs to be modified in the preparation process. This paper reviews the modification and adsorption properties of polysaccharide-based natural polymer hydrogels, such as cellulose, chitosan, starch, and sodium alginate, and discusses the effects of their types and structures on performance and recent technological advances.
Funder
National Natural Science Foundation of China
Subject
Polymers and Plastics,Organic Chemistry,Biomaterials,Bioengineering
Cited by
8 articles.
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