▎ 摘　　要

NOVELTY - Composite catalyst comprises 0.2-6 wt.% graphene nano-sheets and 99.8-94 wt.% copper hydroxyphosphate. USE - The catalyst is useful in industrial waste water treatment (claimed). ADVANTAGE - The composite catalytic has catalytic performance when simulated sunlight. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing catalyst, comprising (i) adding graphene oxide into a beaker, sealing with a preservative film, and ultrasonically dispersion for 12-24 hours, and stirring for 12-24 hours by using a magnetic stirrer; (ii) processing, separating, collecting the supernatant, and calibrating the concentration of graphene oxide, and allowing to stand; (iii) completely dissolving soluble copper salt in water, stirring by adding a soluble phosphate, and stirring for 30-60 minutes by adding graphene oxide in water; and (iv) continuously stirring for 10-30 minutes, adjusting pH to 7 by adding sodium hydroxide, loading suspension into a reaction kettle, and transferring into a blast drying oven, reacting at 100-140 degrees C for 6-24 hours, and centrifuging the precipitate, washing, and drying, to obtain powdered product.