▎ 摘　　要

NOVELTY - Preparing graphene-based flexible non-woven fabric loaded with metal-doped carbon nitride, comprises (i) injecting the graphene oxide aqueous dispersion into a coagulation bath containing a metal salt with a concentration of 0.01-0.1 mole/liter through a circular spinning head to obtain metal ion cross-linked graphene oxide hydrogel fibers, (ii) filtering the hydrogel fibers and washing them using solvent containing the same metal salt, and drying to obtain partially cross-linked metal ion-containing graphene oxide non-woven fabric, and (iii) arranging the above non-woven fabric above the porcelain boat, adding carbon nitride precursor below it, then placing the porcelain boat in a tube furnace for high temperature calcination to obtain final product. USE - The graphene-based flexible non-woven fabric loaded with metal-doped carbon nitride is useful as a catalyst for photocatalytic decomposition of organic matter (claimed); and in the field of visible light catalysis. ADVANTAGE - This non-woven fabric: has certain bending resistance and strong photoresponse activity; promotes the practical application of graphene-based materials; expands the preparation method of photocatalytic device; and provides beneficial assistance for the development of portable photocatalytic devices. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) graphene-based flexible non-woven fabric loaded with metal-doped carbon nitride, obtained by above mentioned method; and (2) use of graphene-based flexible non-woven fabric loaded with metal-doped carbon nitride as catalyst for catalyzing and decomposing organic matter, comprising (a) taking the metal ion as cobalt ion, whose concentration is 0.05 mole per liter, (b) washing with equal volume of ethanol and water mixture, where the cobalt ion concentration of the detergent is 0.5 mole per liter, and (c) taking 200 times the mass of urea as the precursor, and calcining at 580 degrees C for 2 hours to obtain graphene-based flexible non-woven fabric uniformly loaded with cobalt-doped carbon nitride, where the photo-catalytic decomposition of organic matter performance: the reaction rate reaches 2.9/hour.