在中在氧气下氧化烯酸的光氧化(II) 复合载荷的半孔分子
Ke Feng1, Ren-Yuan Zhang, Li-Zhu Wu
1Laboratory of Supramolecular Photochemistry, Technical Institute of Physics and Chemistry and Graduate University, the Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Journal of the American Chemical Society
|November 9, 2006
概括
这项研究成功地将 (II) 复合物整合到SBA-15中,增强单片氧生成以实现高效的光氧化. 支持的催化剂是稳定的和可重复使用的,展示了一个多功能纳米反应器系统.
科学领域:
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
- 纳米技术纳米技术
背景情况:
- 订购的半孔SBA-15提供了适合分子封装的大型六角道.
- 循环金属 ((II) 复合物是氧化反应的有效光敏感剂.
研究的目的:
- 为了将 (II) 复合物纳入SBA-15通道,以加强光化学反应.
- 为了研究光氧化过程中所支持的光敏感剂的效率和稳定性.
- 为了评估SBA-15作为一个纳米反应器的作用,以丰富基板度.
主要方法:
- 用 (3-aminopropyl) triethoxysilane对SBA-15通道进行修改.
- 将环金属 ((II) 复合物纳入修改后的SBA-15.5中.
- 对单片氧 ((1) O ((2)) 生产和光氧化效率的研究.
- 在多个反应周期中评估催化剂的稳定性和可回收性.
主要成果:
- 在SBA-15纳米通道中成功将 (II) 复合物纳入.
- 与同质溶液相比,纳米通道中的烯酸富含量高出8倍.
- 有效的光敏感氧化与稳定的 (II) 复合体.
- 经过10次运行后没有观察到显著的降解或漏,这使得简单的过可以重复使用.
结论:
- (II) 复合体-SBA-15系统作为一个稳定和高效的纳米反应器用于光氧化.
- SBA-15通过缩基板和促进单点氧气生成来提高反应速率.
- 该系统提供了一种可回收和具有成本效益的方法,用于在光化学应用中利用贵金属催化剂.
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