钛酸锶的光催化产氢性能研究

钛酸锶的光催化产氢性能研究AbstractWith the global environmental pollution and energy crisis becoming severe increasingly,research and development of clean and renewable energy has become imminent.Hydrogen energyis become the hottest new green energy source currently,with the advantages of large energy,largecalorific value,and fast energy conversion.Photocatalysis technology is an effective strategy forusing solar energy to decompose water to produce hydrogen.Strontium titanate is a typicalperovskite structure.Due to its high stability,suitable energy band position,and adjustablestructure and morphology,it is considered to be one of the most attractive photocatalytic materialsin the field of solar fuel.In this thesis,a sol-gel solvothermal method was used to successfullysynthesize the strontium titanate photocatalyst,and its photocatalytic performance in the hydrogendecomposition of water by photocatalysis was studied.According to XRD,SEM,UV-Vis DRSand BET characterization analysis,it can be obtained that strontium titanate photocatalystsynthesized with butanol as solvent has higher specific surface area and photocatalytic hydrogenproduction activity.Specifically,the butanol-mediated sample has the largest reaction rate constant(264.1 umol-h-1'g-1 ),which is 3.3 times higher than the propanol-mediated sample.Keywords:strontium titanate,photocatalyst,hydrogen energy