New viewpoints of magnetic-field influence on photocatalysis via 2-propanol oxidation

Effects of external light in the magnetic field-modulated photocatalytic reactions in a microfluidic chip reactor

“…6,13–19 The effects of the singlet-triplet intersystem crossing of radicals and the Lorentz force further suppressing the recombination of photogenerated electrons and holes can enhance the photocatalytic reactions when introducing an external magnetic field. 22 Plasmonic hot-carrier collection over a tunable Schottky barrier enables additional energy harvesting at a metal–semiconductor interface, while gold produces holes hotter than electrons by 1–2 eV. 20 The additional harvested energy can compensate for the energy in the photocatalytic reactions.…”

“…The enhancement by an externally applied magnetic field of photocatalytic reactions 17,21–26 is also a difficult-to-understand research topic. 27–30 At the beginning of relative research works, some composite photocatalysts containing magnetic nanomaterials have attracted considerable interest as they can be easily collected and recycled after use.…”

“…23 This important and environmentally beneficial method is easy to continuously process by adding an external magnetic field by magnets to enhance the photocatalytic reactions without extra power consumption. 21,22…”

Boosting the Efficiency of Photoactive Rod-Shaped Nanomotors via Magnetic Field-Induced Charge Separation

“…65 This effect may be attributed to an increase in the concentration of surface hydroxy groups on the photocatalysts induced by MFs. 66,67 In a previous study, we observed that adsorbed hydroxyl radicals favor selective oxidations compared to free hydroxyl radicals. 68 Therefore, the enhancement in the phenol yield by the TiO 2 / NiFe nanomotors might be attributed to an improved charge pair separation induced by the MF, 69 as well as higher availability of the hydroxy groups on their surface.…”