纤维素改性材料对重金属吸附性能的研究进展.

Tn recent years? heavy metal pollutants in water bodies have caused serious environmental problems. The concentration of heavy metal ions is low? and the adsorption method can deal with heavy metal pollution. The key to the adsorption method lies in the design and preparation of the adsorption material. Cellulose is a renewable high molecular polymer, which has the advantages of abundant reserves and wide sources. Tt has gradu- ally become a research hotspot in adsorbent materials. After modification? cellulose materials have good adsorption capacity for heavy metal ions. This paper introduces the simple physical modification of cellulose? direct chemical modification of cellulose? graft modification of cellulose and the effect of functional groups on the adsorption of heavy metal ions? and analyzes the adsorption effect of modified cellulose on heavy metal ions. Tn addition, the development of cellulose adsorbent materials is prospected. [ABSTRACT FROM AUTHOR]