Selective hydrogenation of organic functionalities at environmentally benign conditions using visible light is of great industrial and economic significance. Herein we report visible-light-induced rapid, almost quantitative and selective hydrogenation of olefins to respective mono-reduced products using cooperative performance of Pd(0) nanoparticles (NPs) and Pd(II) ions evenly distributed on a newly synthesized conjugated mesoporous poly-azobenzene network. Role of variable Pd(0)/Pd(II) ratio on the properties of polymeric networks and their overall catalytic abilities is critically investigated. This is the first proposed example of cooperative hydrogenation by simultaneous activation of H₂ and unsaturated substrates using Mott-Schottky heterojunction between Pd NPs and the semiconducting polymer, with the help of Pd(II)-site-mediated η-coordination. A control over selective mono-reduction of diene with identical double bonds was also obtained. The catalytic activity retained for other non-olefinic functionalities as well.

使用可见光在环境友好的条件下对有机官能团进行选择性加氢具有重要的工业和经济意义。本文中，我们利用均匀分布在新合成的共轭介孔聚合物上的Pd（0）纳米粒子（NPs）和Pd（II）离子的协同性能，报告了可见光诱导的烯烃快速，几乎定量和选择性的氢化成相应的单还原产物-偶氮苯网络。严格研究了可变Pd（0）/ Pd（II）比对聚合物网络性能及其整体催化能力的作用。这是通过同时活化H ₂进行协同氢化的第一个提出的实例在Pd NP与半导体聚合物之间使用Mott-Schottky异质结，并借助Pd（II）-位点介导的η-配位作用来制备不饱和底物。还获得了对具有相同双键的二烯的选择性单还原的控制。催化活性也保留用于其他非烯烃官能团。