▎ 摘　　要

NOVELTY - Method for preparing cadmium sulfide-poly-dopamine-reducing graphene oxide (CDS-PDA-RGO) photoelectrocatalytic material involves (i) dissolving the cadmium nitrate tetrahydrate in water, dripping the obtained thiourea solution and glutathione solution into the zinc acetate solution, (ii) placing the clean fluorine doped tin oxide (FTO) glass into the hydrothermal inside, adding CDS precursor reaction liquid, reacting, and removing the sample to produce CDS/FTO film, (iii) dissolving dopamine, stirring and reacting to obtain polybatamine copolymer, immersing the CDS/FTO film in the above solution, and stirring to obtain CDS photode electrode of the surface loaded PDA and (iv) dissolving reduced oxide in water to prepare RGO solution, adding sodium sulfate to prepare mixture of RGO and sodium sulfate, transferring to the quartz electrolytic cell, using electrochemical deposition method, and loading the PDA layer with RGO to obtain the photocatalytic material. USE - Method for preparing cadmium sulfide-poly-dopamine-reducing graphene oxide (CDS-PDA-RGO) photoelectrocatalytic material. ADVANTAGE - The method is simple, mild in reaction conditions, non-toxic and environmentally-friendly, and under 1.1 V external bias and simulated solar irradiation, achieves degradation rate of the methylene blue is 96% in 5 hours, which is 1.75 times compared to the unreformed CDS degradation rate. DETAILED DESCRIPTION - Method for preparing cadmium sulfide-poly-dopamine-reducing graphene oxide (CDS-PDA-RGO) photoelectrocatalytic material involves (i) dissolving the cadmium nitrate tetrahydrate in deionized water, preparing a cadmium nitrate, and dissolving thiourea in deionized water to prepare a cytutide solution in deionized water to prepare a glutathione solution, dripping the thiourea solution and the glutathione solution into the zinc acetate solution to configure the CDS precursor reaction liquid, (ii) placing the clean fluorine doped tin oxide (FTO) glass into the hydrothermal inside, and adding an appropriate amount of CDS precursor reaction liquid, and reacting at a certain temperature for a certain temperature, and removing the sample after the reactive sample to produce CDS/FTO film, (iii) dissolving quantitative trihymethylmethhane and dopamine, mechanically stirring the mixture at normal temperature and reacting to obtain polybatamine copolymer, immersing the CDS/FTO film in the above solution, and continuously stirring for a period of time to obtain CDS photode electrode of the surface loaded PDA and (iv) dissolving reduced oxide made of a quantitative Ummers method in deionized water to prepare RGO solution after a period of time, adding quantity sodium sulfate to the above mixed solution to prepare a mixture of RGO and sodium sulfate, transferring to the quartz electrolytic cell as an electrolyte, using electrochemical deposition method with the CDS-PDA as the working electrode, platinum as the counter electrode, and the silver/silver chloride as the reference electrode, depositing a certain amount of voltage for a period of time and loading the PDA layer with RGO to obtain a CDS-PDA-RGO photocatalytic material.