All-solid-state direct Z-scheme NiTiO₃/Cd_0.5Zn_0.5S heterostructures for photocatalytic hydrogen evolution with visible light

Abstract

The construction of NiTiO3/Cd0.5Zn0.5S heterostructures is presented as all-solid-state direct Z-scheme photocatalysts for efficient and stable hydrogen production with visible light. The NiTiO3/Cd0.5Zn0.5S hybrids are assembled by growing Cd0.5Zn0.5S nanoparticles...

MOF nanosheet-derived carbon-layer-coated CoP/g-C3N4photocatalysts with enhanced charge transfer for efficient photocatalytic H2generation

“…49 Thus, it was concluded that the g-C 3 N 4 /CoP@C-200 composite material had a strong charge-separation ability, which led to an improvement in H 2 production performance. [50][51][52][53][54] This conclusion was consistent with the results obtained from the EIS analysis; the Nyquist plot of the composite had the smallest semicircle diameter by comparison with those of g-C 3 N 4 and CoP@C (Fig. 4d).…”

Triple-Channel Charge Transfer over W18O49/Au/g-C3N4 Z-Scheme Photocatalysts for Achieving Broad-Spectrum Solar Hydrogen Production

“…These performances surpass those of g-C 3 N 4 - and W 18 O 49 -based heterostructure photocatalysts as well as other state-of-the-art NIR-responsive photocatalysts reported up to date, as summarized in Table . ,,− In our study, the hydrogen production rate of W 18 O 49 /Au/g-C 3 N 4 (3465 μmol/g·h) is about 2.04 times that of W 18 O 49 /g-C 3 N 4 (1700 μmol/g·h), which shows the highest hydrogen production rate compared with the photocatalysts in Table . In addition, the other Z -scheme photocatalysts composed of other materials without g-C 3 N 4 and W 18 O 49 are summarized in Table S2. − As seen in the table, our W 18 O 49 /Au/g-C 3 N 4 catalyst shows the highest hydrogen production rate compared with other Z -scheme heterojunction catalysts published in the past 1–2 years.…”

Converting the Charge Transfer in ZnO/ZnxCd1‐xS‐DETA Nanocomposite from Type‐I to S‐scheme for Efficient Photocatalytic Hydrogen Production

“…Furthermore, the hydrogen evolution rate of the ZOZCS-2 nanocomposite is comparable to some recently reported transition metal sulfides based composite photocatalysts (Table S4, Supporting Information). [45][46][47][48] Furthermore, the cycling stability of the photocatalysts are evaluated. Figure 5e shows the hydrogen evolution curves of the Zn 0.5 Cd 0.5 S-DETA and ZOZCS-2 catalysts in seven cycles.…”