Interior and Surface Synergistic Modifications Modulate the SnNb₂O₆/Ni-Doped ZnIn₂S₄ S-Scheme Heterojunction for Efficient Photocatalytic H₂ Evolution

Abstract

Interior and surface synergistic modifications can endow the photocatalytic reaction with tuned photogenerated carrier flow at the atomic level. Herein, a new class of 2D/2D SnNb 2 O 6 /Ni-doped ZnIn 2 S 4 (SNO/Ni-ZIS) S-scheme heterojunctions is synthesized by a simple hydrothermal strategy, which was used to evaluate the synergy between interior and surface modifications. Theoretical calculations show that the S-scheme heterojunction boosts the desorption of H atoms for rapid H 2 evolution. As a result, 25% SNO/Ni 0.4 -ZIS exhibits significantly improved PHE activity under visible light, roughly 4.49 and 2.00 times stronger than that of single ZIS and Ni 0.4 -ZIS, respectively. In addition, 25% SNO/Ni 0.4 -ZIS also shows superior structural stability. This work provides advanced insight for developing high-performance S-scheme systems from photocatalyst design to mechanistic insight.

Boosting photocatalytic H2 evolution through interfacial manipulation on a lotus seedpod shaped Cu2O/g-C3N4 p-n heterojunction

“…[1][2][3][4] Although tremendous progress has been made, photocatalysis technology is still restricted by the unsatisfactory performance of the existing photocatalysts. [5][6][7][8][9][10][11][12] To overcome this dilemma, it is essential to design cost-effective and high-performance photocatalysts to achieve efficient H 2 production for practical applications. 13,14 Among various photocatalysts, graphitic carbon nitride (g-C 3 N 4 ) has shown great potential for water splitting under visible light irradiation owing to its environmental friendliness, good physicochemical stability and distinctive electronic properties.…”

3D/2D Heterojunction of CeO2/Ultrathin MXene Nanosheets for Photocatalytic Hydrogen Production

“…Subsequently, photo-generated electrons are further reacted with the absorbed protons under light to produce H 2 . 43 − 46 …”

“…Meanwhile, the photo-generated holes remaining in the valence band of CeO 2 are consumed by the sacrificial agent. Subsequently, photo-generated electrons are further reacted with the absorbed protons under light to produce H 2 . − …”

MOF(Fe)-derived composites as a unique nanoplatform for chemo-photodynamic tumor therapy

“…[5][6][7] Metal ions and clusters with organic ligands self-assemble into metal-organic frameworks (MOFs). [8][9][10] MOFs have large specific surface areas and high porosities [11][12][13] and exhibit good adsorption capacities for small molecule drugs. [14][15][16][17] Moreover, some chemical bonds between them are pH-sensitive, and they can collapse and degrade in acidic environments, thereby avoiding the adverse effects of endogenous accumulation in the organism's body.…”