碳点复合材料的合成及光催化产氢性能分析

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中图分类号：TQ317 文献标志码：A文章编号：1001-5922（2026）1-0108-04

Abstract：To developa highly eficient and stable photocatalytic hydrogen production material，this experiment prepared acarbon dotcomposite viacarbon dot-modified porous titanium dioxide and analyzed its photocatalytic hydrogen production performance.The results show that this carbon dot composite retains the structural characteristics of carbon dotsand titanium dioxide，forming a stablecomposite system.Thematerial exhibits excelent photocatalytic hydrogen production performance，with a hydrogen production rate reaching 35.88mol/（h⋅g） within 8 hours， which ismore than 4 times higher than that of porous titanium dioxide.Furthermore，the kinetic constant of this carbon dot composite is increased by 160% ，and it maintains good stability during the 24-hour cycle test.

Key words： photocatalysis ;carbon dots ;composite materials; hydrogen production rate ;stability

随着全球能源危机和环境问题日益严峻，开发清洁可再生能源十分重要。（剩余5855字）