▎ 摘　　要

NOVELTY - Supported photocatalyst comprises fibers, a bonding layer formed on the surface of the fibers, and a photocatalytic layer formed on the surface of the bonding layer, the bonding layer comprising dioxide Silicon and carboxymethyl cellulose. USE - Supported photocatalyst used in photocatalytic degradation of sewage. ADVANTAGE - The supported photocatalyst improves the flexibility and bonding strength of the bonding layer by modifying the silicon dioxide with carboxymethyl cellulose, and prevents the bonding layer from falling off and the photocatalyst particles cannot fully cover the fibers. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a supported photocatalyst, which involves: providing fibers, dispersing orthosilicic acid and carboxymethyl cellulose in a solvent to form an adhesive layer coating liquid, and forming the adhesive layer coating liquid on the surface of the fiber to cure the adhesive layer coating liquid, curing orthosilicic acid to form silicon dioxide to obtain a bonding layer formed on the surface of the fiber, and forming photocatalytic layer on the surface of the adhesive layer.