Dissolution and homogeneous photocatalysis of polymeric carbon nitride†,Chemical Science

当前位置： X-MOL 学术 › Chem. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Dissolution and homogeneous photocatalysis of polymeric carbon nitride†
Chemical Science ( IF 7.6 ) Pub Date : 2018-10-02 00:00:00 , DOI: 10.1039/c8sc03855d
Chaofeng Huang ₁ , Jing Wen ₂ , Yanfei Shen ₁ , Fei He ₁ , Li Mi ₁ , Ziyu Gan ₁ , Jin Ma ₁ , Songqin Liu ₁ , Haibo Ma ₂ , Yuanjian Zhang ₁

Affiliation

As a metal-free conjugated polymer, carbon nitride (CN) has attracted tremendous attention as a heterogeneous (photo)catalyst. By following the example of enzymes, making all of the catalytic sites accessible via homogeneous reactions is a promising approach toward maximizing CN activity, but hindered due to the poor solubility of CN. Herein, we report the dissolution of CN in environmentally friendly methanesulfonic acid, and homogeneous photocatalysis (two biomimetic/pharmaceutical photocatalytic oxidation reactions) driven by CN for the first time with the activity boosted up to 10-times compared to the heterogeneous counterparts. Moreover, facile recycling and reusability, the hallmarks of heterogeneous catalysts, were kept for the homogeneous CN photocatalyst via reversible precipitation using poor solvents. This study opens a new vista for CN in homogeneous catalysis and offers a successful example of a polymeric catalyst that bridges the gap between homo/heterogeneous catalysis.

中文翻译：

聚合氮化碳的溶解和均相光催化†

作为一种无金属共轭聚合物，氮化碳（CN）作为非均相（光）催化剂引起了极大的关注。以酶为例，通过均相反应使所有催化位点可接近是一种有前途的方法，可以最大限度地提高 CN 活性，但由于 CN 溶解度差而受到阻碍。在此，我们首次报道了 CN 在环境友好的甲磺酸中的溶解，以及由 CN 驱动的均相光催化（两种仿生/药物光催化氧化反应），与非均相对应物相比，活性提高了 10 倍。此外，非均相催化剂的特点是易于回收和可重复使用，均相 CN 光催化剂通过使用不良溶剂进行可逆沉淀。这项研究为 CN 在均相催化中开辟了新的前景，并提供了一个成功的例子，即弥合均相/多相催化之间的差距的聚合物催化剂。

更新日期：2018-10-02

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11