精品文档---下载后可任意编辑L--胱氨酸辅助纳米硫化物的水热制备及可见光制氢讨论的开题报告【摘要】纳米硫化物在可见光催化领域具有广泛应用前景，但是其制备方法一直存在一定的技术难题，且催化性能不佳。本讨论采纳 L--胱氨酸辅助水热法制备纳米硫化物，并通过可见光制氢实验评测其光催化性能。实验结果表明，L--胱氨酸能够作为还原剂和表面调控剂，调控纳米硫化物的形貌和大小，同时提高了其催化活性。在 L--胱氨酸质量分数为 0.6%的条件下制备的纳米硫化物可进一步提高光催化制氢效率。本讨论为纳米硫化物的高效制备及应用提供了新的思路。【关键词】纳米硫化物；L--胱氨酸；水热法；可见光制氢【Abstract】Nanoscale sulfides have broad applications in visible light catalysts, but their preparation methods have been challenging and their catalytic performance is insufficient. In this study, nanoscale sulfides were prepared using L--cysteine-assisted hydrothermal method, and their photocatalytic performance was evaluated by visible light hydrogen production experiments. The results showed that L--cysteine can be used as a reducing and surface regulating agent to regulate the morphology and size of nanoscale sulfides, while also improving their catalytic activity. Nanoscale sulfides with a L--cysteine mass fraction of 0.6% can further improve the photocatalytic hydrogen production efficiency. This study provides a new idea for the efficient preparation and application of nanoscale sulfides.【Keywords】nanoscale sulfides; L--cysteine; hydrothermal method; visible light hydrogen production
