All-solid-state Z-scheme Pt/ZnS-ZnO heterostructure sheets for photocatalytic simultaneous evolution of H2 and O2

Single‐Atom Pt Loaded Zinc Vacancies ZnO–ZnS Induced Type‐V Electron Transport for Efficiency Photocatalytic H2 Evolution

“…[41] The aforementioned results further demonstrate the formation of ZnO-ZnS with strong interface bonding. [17] As shown in Figure 4a,b, the binding energy of Zn 2p and O 1s orbitals of ZOS-SAPt was basically the same as that of ZnO-ZnS. Figure 4c clearly shows that the binding energy of S 2p in ZOS-SAPt was significantly increased after loading single atom Pt, indicating that part of the electrons of S transferred to Pt, which indicates the formation of Pt─S.…”

“…[14][15][16] Wang et al designed ZnS-ZnO heterostructure sheets by combining solid-state Z-scheme for photocatalytic O 2 and H 2 evolution. [17] Su et al prepared coreshell Cu nanowire/ZnS composite by microwave-induced method, which made the hybrid composite with strong coupling interface and showed stronger photocatalytic activity and stability for H 2 evolution under visible light. [18] Shi et al loaded Au nanoparticles on the surface of ZnO-ZnS core-shell structure to improve H 2 production activity.…”

ZnO/ZnS-Polyvinyl Alcohol Hydrogel for Photocatalytic H2-Generation

“…Reaction mechanisms of H 2 evolution from scavenger Na 2 S/Na 2 SO 3 solutions containing S 2− , SO 3 2−, or S 2 O 3 2− with PVA-ZnOS hydrogel are proposed in Figure 7. The valence band maximum (VBM) and conduction band minimum (CBM) of ZnO and ZnS were widely reported in the literature [7][8][9][10][11][12][13][14], where the VB of ZnO is lower than that of ZnS and the CB of ZnS is higher than that of ZnO, allowing maximum redox capability of the ZnO/ZnS interface. The presence of Na 2 S/Na 2 SO 3 solution stimulates the H 2 evolution by scavenging photogenerated holes, suppressing the formation of S 2 2− from Na 2 S by SO 3 2− from Na 2 SO 3 [31].…”

“…In addition, ZnS and ZnO are low-cost materials, of which synthesis methods of creating a heterojunction have been well studied. ZnS-ZnO photocatalyst can oxidize water to produce oxygen gas and simultaneously reduce water to form hydrogen gas [11,12]. We successfully developed ZnS-ZnO nanostructures for high-performance H 2 -generation reaction and Cr(VI) reduction [13,14].…”

Fabrication of Core‐Shell Nanocolloids with Various Core Sizes to Promote Light Capture for Green Fuels

“…Core‐shell nanostructures have received intensive interest because of their intriguing physical merits, [1] such as low mass density, large surface area, high permeability, and good mechanical stability. Significantly, the chemical compositions of both core and shell components can be changed and tailored, which may endow the core‐shell materials with high complexity and diversity, thus making them quite promising in various emerging applications, including electrochemical energy storage, [2–6] photocatalysis, [7–12] electrocatalysis, [13,14] biomedical [15,16] and sensing [16–18] . In the past few years, different kinds of inorganic nanomaterials, such as TiO 2 , Al 2 O 3 , CeO 2 , NiS, CdSe, Ag, and Pt have been rationally designed and then fabricated into core‐shell structures to realize specialized functionalities [19] …”