Covalent organic framework based photocatalysts for efficient visible-light driven hydrogen peroxide production

Abstract

Hydrogen peroxide (H2O2), as an important environmentally friendly oxidant, has been widely used in bleaching, disinfection, wastewater treatment and chemical synthesis, while the artificial photosynthesis of H2O2 from H2O and...

Advancements in controlling COFs structure for enhanced crystallization properties and self-generated photocatalytic hydrogen peroxide

“…2). Theoretically, catalysts facilitating H 2 O 2 generation through the ORR pathway should exhibit a conduction bandh potential more negative than 0.68 V, while those operating via the WOR pathway should manifest a valence band potential more positive than 1.76 V. 16 The light absorption capability of the catalyst directly influences its bandgap width, whereas the relative positions of its CB and VB delineate potential reaction routes for H 2 O 2 generation and the redox capacity of the catalyst itself. In essence, the catalyst's capacity to harness the solar spectrum, its bandgap width, and its energy band potentials are fundamental determinants of H 2 O 2 yield.…”

Hexagonal Hollow Porous Organic Framework Nanotubes for Efficient Photocatalytic H2O2 Production in Pure H2O under O2 Atmosphere

“…Photocatalytic generation of H 2 O 2 through O 2 reduction combined with H 2 O oxidation is a promising means to resolve the issues of big energy consumption and severe pollution in industrial anthraquinone technology, in which the raw materials only contain O 2 and H 2 O, and the energy source is renewable and solar. − The development of effective photocatalysts is the key for efficient and sustainable photocatalytic H 2 O 2 production . The current research on catalysts for photocatalytic production of H 2 O 2 has mainly fastened on inorganic materials, like metal oxides, , sulfides, and phosphates, which are typically excited in the ultraviolet range, and their narrow band gaps limit their applications under sunlight .…”