可见光到第二次近红外光采集捐助者-接受者1-捐助者-接受者2类型的聚合物,通过双硫-接受器工程来促进光催化进化
Yuanle Su1, Keming Li1, Zhanfeng Li1
1Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, PR China.
Journal of colloid and interface science
|February 1, 2024
概括
新的合聚合物吸收可见到近红外光,以增强太阳能. 这些新型材料显示出高进化率,推动了光催化剂的发展.
科学领域:
- 材料科学 材料科学 材料科学
- 光催化作用的光催化
- 聚合物化学 聚合物化学
背景情况:
- 结合有机聚合物通常只吸收可见光,限制了太阳能利用.
- 开发能够在可见光到近红外光谱中吸收的材料是高效光催化剂的关键.
研究的目的:
- 开发能够从可见到第二近红外 (Vis-to-NIR-II) 区域吸收光的新型联聚合物.
- 研究具有不同硫受体比率的捐赠者-受体-捐赠者-受体 (D-A1-D-A2) 聚合物的结构-性质关系.
主要方法:
- 合成了一种具有强大的电子吸收特性的新型硫S,S-二氧化物 (TDO) 单体.
- 制备了一系列D-A1-D-A2结合聚合物 (THTDB-1-THTDB-5),通过统计调整二西欧芬-S,S-二氧化物 (BTDO) 和TDO受体单元的摩尔比率.
- 描述了合成的聚合物聚合物的光学吸收特性和光催化活性.
主要成果:
- 聚合物表现出可调节的吸收范围延伸到Vis-to-NIR-II区域,并增加了TDO含量.
- 优化的聚合物 (THTDB-4) 显示出高效的光采集能力.
- 在没有辅助催化剂的情况下,在可见光下达到21.27 mmol g-1 h-1的高进化率.
结论:
- 双硫接收器工程是一种有效的策略,用于创建具有扩展光吸收的合聚合物光催化剂.
- 这些新的Vis-to-NIR-II光采集聚合物显示出增强太阳能转换应用的巨大潜力.
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