Ambient aqueous-phase synthesis of covalent organic frameworks for degradation of organic pollutants

• DOI: 10.1039/c9sc03725j
• Publication Date: 2019-10-16T03:23:36Z
• Authors: Yaozu Liu; Yujie Wang; Hui Li; Xinyu Guan; Liangkui Zhu; Ming Xue; Yushan Yan; Valentin Valtchev; Shilun Qiu; Qianrong Fang
• Keywords: Degradation; Aqueous two-phase system; Organic Synthesis

The development of a mild, low cost and green synthetic route for covalent organic frameworks (COFs) is highly desirable in order to open the door practical uses this new family crystalline porous solids. Herein, we report general facile strategy prepare series microporous or mesoporous COFs by β-ketoenamine based Michael addition-elimination reaction aqueous systems at ambient temperature pressure. This synthesis method not only produces COFs, but also can be carried out with high rate (only 30 min), yields (as as 93%) large-scale preparation (up 5.0 g). Furthermore, an Fe(ii)-doped COF shows impressive performance oxidative degradation pollutants medium. research thus provides promising pathway their potential application environmental remediation.