Advanced municipal wastewater treatment and simultaneous energy/resource recovery via photo(electro)catalysis

Material Design Strategies for Recovery of Critical Resources from Water

“…Finally, the electrons initiate reduction reactions while the holes participate in oxidation. [222][223][224] Photocatalytic degradation of various pollutants in wastewater is typically an exothermic reaction, which is merely accelerated by the catalyst. This is in contrast to most reduction reactions, especially water splitting and CO 2 reduction, where the processes have ΔG > 0 and require photochemical energy input to proceed.…”

Boosting pollutant degradation with simultaneous H2O2 production from its electron delocalization and excitation co-triggered by microelectric field and visible light

“…25,26 Moreover, the energy of pollutants in the reported dual-photocatalytic system is used in the removal of the photogenerated holes for prolonging the lifespan of photogenerated electrons. 27 In turn, this wastes the energy of the pollutant and light, leading to low photocatalytic activity in pollutant degradation with simultaneous chemical energy.…”

Synergistically interactive P–Co–N bonding states in cobalt phosphide-decorated covalent organic frameworks for enhanced photocatalytic hydrogen evolution

“…4,5 Even since the landmark of photoelectrochemical splitting of water on TiO 2 -Pt electrodes in 1972, 6 extensive efforts have been made toward the development of highly efficient and stable photocatalytic materials for H 2 evolution. [7][8][9] However, the performance of most developed photocatalysts is unsatisfactory since they suffer from low charge separation efficiency and sluggish H 2 evolution dynamics. In such a scenario, cocatalysts are usually required to achieve considerable photocatalytic H 2 evolution.…”