▎ 摘　　要

NOVELTY - Three-dimensional porous starch-rGO composite photocatalytic hydrogel modified by silver phosphate/bismuth phosphate comprises gel-shaped three-dimensional porous starch-rGO as a carrier and 1-5% silver phosphate/bismuth phosphate fixed on the carrier, where the molar ratio of silver element to bismuth element in the silver phosphate/bismuth phosphate is 0.25-4:1 and the mass ratio of starch and rGO in the carrier is 1:1-3. USE - Used as three-dimensional porous starch-rGO composite photocatalytic hydrogel modified by silver phosphate/bismuth phosphate. ADVANTAGE - The method uses starch rGO as a carrier to realize immobilization of silver phosphate/bismuth phosphate photocatalyst, combines the integration of adsorption and catalytic functions, and realizes the adsorption and photocatalytic degradation of gas targets at the same time, and maximizes the synergy, significantly improves the photocatalytic efficiency, and can be recycled and reused, and has good application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the three-dimensional porous starch-rGO composite photocatalytic hydrogel modified by silver phosphate/bismuth phosphate, comprising (a) dispersing the silver phosphate/bismuth phosphate powder in dispersant to obtain an silver phosphate/bismuth phosphate dispersion, and mixing starch with reduced oxidized graphite alkene rGO to obtain a starch suspension, and (b) mixing silver phosphate/bismuth phosphate dispersion and starch suspension, casting, pouring, freeze-drying, and vacuum freeze-drying.