Functional regenerated cellulose fiber, preparation method therefor, and application thereof

Functional regenerated cellulose fiber comprises a graphene structure and non-carbon non-oxygen elements; the non-carbon non-oxygen elements comprise elements of Fe, Si, and Al; and the non-carbon non-oxygen elements account for 0.03wt%-1wt% of the regenerated cellulose fiber. By means of the functional regenerated cellulose fiber provided by the present invention, substances containing a graphene structure and non-carbon non-oxygen elements are brought in traditional regenerated cellulose fiber; through matching and combining of the graphene structure and elements of Fe, Si, and Al, the regenerated cellulose fiber provided by the present invention has various properties of far infrared property and bacteria resistance and inhibition; and by controlling a specific adding proportion, the regenerated cellulose fiber can have a better far infrared effect and bacteria inhibition effect.