Uranyl-photocatalyzed hydrolysis of diaryl ethers has been established to achieve two types of phenols at room temperature under normal pressure. The single electron transfer process was disclosed by a radical quenching experiment and Stern–Volmer analysis between diphenyl ether and uranyl cation catalyst, followed by oxygen atom transfer process between radical cation of diphenyl ether and uranyl peroxide species. The ¹⁸O-labeling experiment precisely demonstrates that the oxygen source is water. Further application in template substrates of 4-O-5 linkages from lignin and 30-fold efficiency of flow operation display the potential application for phenol recovery via an ecofriendly and low-energy consumption protocol.

中文翻译：

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铀酰光催化二芳基醚在常温下水解定向降解 4-O-5 木质素

已经建立了铀酰光催化水解二芳基醚，以在常压下在室温下获得两种类型的苯酚。通过二苯醚和铀酰阳离子催化剂之间的自由基猝灭实验和 Stern-Volmer 分析揭示了单电子转移过程，然后是二苯醚自由基阳离子和过氧化铀酰物种之间的氧原子转移过程。的¹⁸ O型标记实验精确地表明，氧源是水。木质素 4-O-5 键的模板底物的进一步应用和流动操作的 30 倍效率显示了通过环保和低能耗协议回收苯酚的潜在应用。