Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China.
School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia.
Angew Chem Int Ed Engl. 2021 Sep 20;60(39):21529-21535. doi: 10.1002/anie.202108462. Epub 2021 Aug 25.
We report a sono-Fenton strategy to mediate the supramolecular assembly of metal-phenolic networks (MPNs) as substrate-independent coatings using phenol and phenyl derivatives as building blocks. The assembly process is initiated from the generation of hydroxyl radicals ( OH) using high-frequency ultrasound (412 kHz), while the metal ions synergistically participate in the production of additional OH for hydroxylation/phenolation of phenol and phenyl derivatives via the Fenton reaction and also coordinate with the phenolic compounds for film formation. The coating strategy is applicable to various phenol and phenyl derivatives and different metal ions including Fe , Fe , Cu , and Co . In addition, the sono-Fenton strategy allows real-time control over the assembly process by turning the high-frequency ultrasound on or off. The properties of the building blocks are maintained in the formed films. This work provides an environmentally friendly and controllable method to expand the application of phenolic coatings for surface engineering.
我们报告了一种声芬顿策略，使用酚和苯衍生物作为构建块，介导金属-酚网络（MPN）的超分子组装作为无底物涂层。组装过程是从使用高频超声（412 kHz）产生羟基自由基（ OH ）开始的，而金属离子通过芬顿反应协同参与产生额外的 OH ，用于苯酚和苯衍生物的羟化/酚化，并且还与酚类化合物配位形成薄膜。该涂层策略适用于各种酚和苯衍生物以及不同的金属离子，包括 Fe 、Fe 、Cu 和 Co 。此外，声芬顿策略可以通过打开或关闭高频超声来实时控制组装过程。形成的薄膜中保留了构建块的性质。这项工作为表面工程中酚醛涂层的应用提供了一种环保且可控的方法。
