Optimal Architecture of a Dual S-Scheme ZnIn2S4–ZnO–Al2O3 Heterosystem with High H2 Evolution Rate under Visible Light
Irshad Ahmad,
Shazia Shukrullah,
Humaira Hussain
et al.
Abstract:In this study, dual S-scheme ZnIn 2 S 4 −Al 2 O 3 −ZnO (ZIS−Al−Zn) heterojunctions were produced by a facile, low cost, and rapid combustion technique. These heterojunctions accelerated the photocatalytic hydrogen production due to the multichannel-promoted separation of photocarriers. By optimizing the content of the components, the synthesized ZIS−Al−Zn composite with 20 wt% of ZnIn 2 S 4 and 30 wt% of Al 2 O 3 in the ZIS−Al−Zn composite demonstrated the highest hydrogen production rate of 54.2 mmol g −1 h −… Show more
“…Increasing the charge storage capacity of the catalyst can therefore be expected to improve its lifetime. 56,57 The three carbon materials were doped into CdS, as illustrated in Fig. 6(h), resulting in CS/TA-10 exhibiting the largest absolute area of the CV curve and a polarisation phenomenon at the peak current.…”
This work provides new insights for efficient H2 production by offering adsorption and reduction active sites. The study indicates that TA-GDY selectively triggers electron migration through the interaction between nitrogen atoms and acetylene bonds.
“…Increasing the charge storage capacity of the catalyst can therefore be expected to improve its lifetime. 56,57 The three carbon materials were doped into CdS, as illustrated in Fig. 6(h), resulting in CS/TA-10 exhibiting the largest absolute area of the CV curve and a polarisation phenomenon at the peak current.…”
This work provides new insights for efficient H2 production by offering adsorption and reduction active sites. The study indicates that TA-GDY selectively triggers electron migration through the interaction between nitrogen atoms and acetylene bonds.
MgAl LDH/Zn-MOF S-scheme heterojunction exhibits superior photocatalytic activity for H2 evolution, methyl red dye removal and CO2 adsorption due to increased light absorption, high surface area, good stability and recyclability.
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