Platinum nanodots modified Nitrogen-vacancies g-C3N4 Schottky junction for enhancing photocatalytic hydrogen evolution

Hierarchical MoO2/ZnIn2S4 Schottky Heterojunction Stimulated Photocatalytic H2 Evolution under Visible Light

“…A Schottky junction composed of a metal and semiconductor is another important class of well-studied heterojunctions in photocatalysis . The metal component plays a variety of roles in the improvement of photocatalytic performance, including enhancing the charge separation and transfer under the special Schottky barrier, broadening the light absorption range, or improving the utilization of specific wavelength light relying on the plasmonic effect, , and serving as a co-catalyst to accelerate the reaction kinetics. , For common n-type semiconductors, a Schottky junction can only form when the metal with a larger work function (Φ) is in direct contact with an n-type semiconductor with a smaller Φ. , Thus, earlier Schottky junctions are mainly integrated with noble metals such as Au, , Ag, , Pd, Pt, etc. Urged by the scarcity of precious metals, low-cost but effective metalloid compounds with large Φ serve as alternatives to noble metals, which include NiS, MoS 2, , NiCo 2 S 4, Ti 3 C 2 MXene, ,, and MoP …”

“…16,17 For common n-type semiconductors, a Schottky junction can only form when the metal with a larger work function (Φ) is in direct contact with an n-type semiconductor with a smaller Φ. 12,18 Thus, earlier Schottky junctions are mainly integrated with noble metals such as Au, 15,19 Ag, 20,21 Pd, 22 Pt, 23 etc. Urged by the scarcity of precious metals, low-cost but effective metalloid compounds with large Φ serve as alternatives to noble metals, which include NiS, 1 MoS 2, 3,24 NiCo 2 S 4, 25 Ti 3 C 2 MXene, 13,15,26 and MoP.…”

Visible light-driven H2O2 synthesis over Au/C3N4: medium-sized Au nanoparticles exhibiting suitable built-in electric fields and inhibiting reverse H2O2 decomposition

“…From Fig. 3D, compared with the original CN, the Au/CN-100 sample has increased CB and VB potential and a reduced energy band, 38 which increases the visible light absorption range, contributes to electron transition and reduces the electron–hole recombination rate. 39…”

Iron-doped g-C3N4 catalysts fabricated by forming Fe–N moieties with outstanding photo-Fenton activity toward tetracycline degradation

“…[17][18][19][20][21][22] Nevertheless, the photocatalytic performance of pristine g-C 3 N 4 is generally restricted by the relatively narrow visible responsive region, fast recombination of photogenerated charge carriers, and low specific surface area. Therefore, many approaches, including morphology control, [23][24][25] liquid exfoliation, 26 metallic particle deposition, 27 heteroatom doping, [28][29][30][31] and construction heterojunctions, [32][33][34][35][36][37][38][39] have been considerably explored. Compared with other modification tactics, heteroatom doping enables g-C 3 N 4 to be structurally engineered at the atomic level, thereby regulating the intrinsic electronic structure and bandgap structures, which facilitates the quick segregation of the photogenerated carriers and a wider light-response ability.…”