Enhanced photocatalytic hydrogen peroxide production activity of imine-linked covalent organic frameworksviamodification with functional groups

Abstract

Solar-driven photocatalytic H2O2 production with water and O2 is an environmentally friendly process for producing H2O2, an important chemical. Compared with traditional photocatalysts, covalent organic frameworks (COFs) have received extensive...

Bottom-Up Synthesis of Covalent Organic Frameworks with Quasi-Three-Dimensional Integrated Architecture via Interlayer Cross-Linking

“…It should be noted that the length of one PEG unit is ∼3.82 Å, slightly longer than the distance (∼3.52 Å) between neighboring layers in the TAPB-PDA-OH COF (Figure S1). , However, when the two ends of the PEG unite are linked to the anchors, the C–O bonds are forced to stretch by ∼0.1 Å. This elongated bond length translates to an energy difference of more than 500 kJ/mol, which means that the C COF-1PEG cannot be synthesized using one PEG unit (Figure S2).…”

Covalent organic framework crystallization using a continuous flow packed-bed reactor

“…With respect to other synthetic procedures for TAPB-OHPDA COF powders (Fig. 3d), 25,[28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] the results from this work clearly show that the implementation of flow chemistry allows for rapid conversion to crystalline material, reducing the standard 72-hour synthesis time by more than 36× for the same quality, or better. To further demonstrate generalizability, this method was extended to the synthesis of TAPB-PDA COF, which is derived from 1,3,5-tris(4aminophenyl)benzene and terephthalaldehyde (PDA).…”

Direct Z-scheme WO3/covalent organic framework (COF) heterostructure for enhanced photocatalytic hydrogen peroxide production in water

“…For instance, it is widely used in medical sterilization, solar disinfection, environmental restoration, pulp bleaching, electrochemical, chemical synthesis, biosensor, and textile. [1][2][3] Especially in the context of the COVID-19 pandemic, the demand for H 2 O 2 is also increasing. 4 The global demand for H 2 O 2 will reach 5.7 million tons by 2027.…”