Selective visible-light-driven oxygen reduction to hydrogen peroxide using BODIPY photosensitizers
Selective visible-light-driven oxygen reduction to hydrogen peroxide using BODIPY photosensitizers
复制标题
使用 BODIPY 光敏剂选择性可见光驱动氧还原为过氧化氢
DOI：
10.1039/c7cc09383g
复制
发表时间：
2018-01-21
影响因子：
4.9
通讯作者：
Cao, Rui
中科院分区：
文献类型：
--
作者：
Guo, Xiaojun;Li, Xialiang;Cao, Rui
以二茂铁（Fe）为还原剂，乙酸为质子源，BODIPY光敏剂（PS）为催化剂，在可见光驱动下实现了O-2选择性还原为H2 O2.机制研究表明，O-2可以被（PS）-P-3* 通过能量转移途径激活，在没有Fc的情况下产生单线态氧（O-1（2））。然而，使用Fc，（PS）-P-3* 首先还原性淬灭为PS中心点-，其能够在随后的电子转移步骤中将O-2还原为超氧化物自由基形式。
Selective visible-light-driven O-2 reduction to H2O2 was realized using BODIPY photosensitizers (PS) in the presence of ferrocene (Fc) as the reductant and acetic acid as the proton source. Mechanistic studies suggested that O-2 could be activated by (PS)-P-3* through an energy transfer pathway to give singlet oxygen (O-1(2)) in the absence of Fc. However, with Fc, (PS)-P-3* was first reductively quenched to PS center dot-, which was able to reduce O-2 to the superoxide radical form in a subsequent electron transfer step.