Nitrogen-defect induced trap states steering electron-hole migration in graphite carbon nitride

Modulation of Charge Trapping by Island‐like Single‐Atom Cobalt Catalyst for Enhanced Photo‐Fenton‐Like reaction

“…A tri‐exponential decay function was applied to fit the kinetics traces. For g‐C 3 N 4 , the decay lifetimes of τ 1 = 5.4 ps and τ 2 = 54.7 ps are assigned to electron transfer to the shallow trapping state (TS) and deep TS, [ 41 ] respectively, and τ 3 = 1167.1 ps is due to the recombination of the shallow‐trapped electrons with holes. [ 42 ] The intrinsic deep TS of pure g‐C 3 N 4 would trap charges deeply, which is photocatalytic inertness and would restrain the electron transfer for surface redox reactions.…”

A curtain purification system based on a rabbit fur-based rotating triboelectric nanogenerator for efficient photocatalytic degradation of volatile organic compounds

“…S10 †). 44 A certain amount of formaldehyde solution was added into the reaction chamber, and the solution was volatilized for 180 min to reach the equilibrium of adsorption-desorption. The adsorption amount changes were tested for the natural sedimentation (without curtains), conductive curtain and conductive curtain loaded with g-C 3 N 4 /TiO 2 in Fig.…”

Phosphorus doped and defect modified graphitic carbon nitride for boosting photocatalytic hydrogen production

“…For instance, Zhu et al prepared a g-C 3 N 4 system with abundant nitrogen defects through a thermal polycondensation strategy to reveal the role of trap states, which exhibited a 20-fold enhanced H 2 evolution efficiency relative to pristine g-C 3 N 4 . 29 Novel bridging-nitrogen defects modified holey graphitic carbon nitride nanosheets were prepared via solid-state polymerization and successively thermal annealing with melamine and HMTA for photocatalytic hydrogen production by Tang et al 30 However, the photocatalytic performance of a single defect modification is poor. Thus, it is imperative to find a novel and efficient method to simultaneously modify the elemental doping and defects in g-C 3 N 4 .…”