Metal Poly(heptazine imides) as Multifunctional Photocatalysts for Solar Fuel Production

Abstract

Solar‐driven photocatalysis employing particulate semiconductors represents a promising approach for sustainable production of valuable chemical feedstock. Metal poly(heptazine imide) (MPHI), a novel 2D ionic carbon nitride, has been recognized as an emerging photocatalyst with distinctive properties. In this minireview, we first delineate the forefront innovations of MPHI photocatalysts, spanning from synthetic strategies and solving structures to the exploration of novel properties. We place special emphasis on the structural design principles aimed at developing high‐performance MPHI systems toward photocatalytic solar fuel production such as H2 evolution, H2O oxidation, H2O2 production and CO2 reduction. Finally, we discuss crucial insights and challenges in leveraging highly active MPHIs for efficient solar‐to‐chemical energy conversion.

Recent advances on carbon nitride-based photocatalysts for organic transformations in aqueous media

“…25 It has attracted extensive research interest in recent years. [26][27][28][29] As a class of solid-state sensitizer materials, it or composites based on it have been exploited as a particularly attractive semiconductor-type photo-catalyst and applied in many areas such as water-splitting to produce hydrogen or oxygen, [30][31][32] reduction of carbon dioxide, [33][34][35] degradation of organic pollutants, [36][37][38] bacteria disinfection, 39 and light-driven organic reactions for the selective synthesis of organic compounds. [40][41][42][43][44][45][46] Additionally, it can serve as a host or supporter of metal nanoparticles or metal single atoms, and these composites show a narrow band gap and extended optical absorption capacity, thereby enhancing their photocatalytic performance.…”