▎ 摘　　要

NOVELTY - A doped quantum dot-loaded reduction-oxidation graphene oxide photocatalyst is prepared by weighing and adding cadmium chloride and solid alkaline-earth metal chloride to container, adding deionized water and 3-mercaptopropionic acid as stabilizer and stirring to form cadmium hydroxide complex, adding cadmium selenide and sodium biselenide precursor, stirring solution to form cadmium selenide precursor solution, adding graphene oxide, evenly mixing and heating mixture, reacting, naturally cooling, centrifuging, washing and oven drying mixture. USE - Doped quantum dot-loaded reduction-oxidation graphene oxide photocatalyst is used for photocatalytic degradation of antibiotic tetracycline hydrochloride wastewater (claimed). ADVANTAGE - The doped quantum dot-loaded reduction-oxidation graphene oxide photocatalyst has excellent stability, corrosion resistance, photocatalytic degradation characteristics and antibacterial activity. DETAILED DESCRIPTION - A doped quantum dot-loaded reduction-oxidation graphene oxide photocatalyst is prepared by obtaining sodium biselenide precursor by adding selenium and sodium borohydride powder to container, adding deionized water to completely dissolve mixture, magnetically stirring and reacting mixture under nitrogen protection until white precipitate appears and removing supernatant with syringe, and preparing alkaline-earth metal ions-doped cadmium selenide quantum dot-loaded graphene oxide photocatalyst by weighing and adding cadmium chloride and solid alkaline-earth metal chloride to container, adding deionized water, magnetically stirring until dissolution is completed, adding 3-mercaptopropionic acid as stabilizer, stirring the solution to adjust pH to 9 with sodium hydroxide solution to form cadmium hydroxide complex, adding cadmium selenide and sodium biselenide precursor in stoichiometric ratio in implantation system, removing oxygen and nitrogen, stirring until the clarified solution turns orange to form cadmium selenide precursor solution, adding graphene oxide to system, evenly mixing mixture, heating mixture in oven at 160 degrees C, reacting for 40 minutes, naturally cooling mixture, centrifuging solution, washing mixture with deionized water and methanol for 3 times and oven drying. An INDEPENDENT CLAIM is included for application of doped quantum dot load reduction of graphene oxide photocatalyst.