Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator

The influence of the sacrificial agent nature on transformations of the Zn(OH)2/Cd0.3Zn0.7S photocatalyst during hydrogen production under visible light

“…The highest hydrogen production rates are 3200 mmol g À1 h À1 for 1% Pt/10% Zn(OH) 2 /Cd 0.3 Zn 0.7 S photocatalyst (ethanol) and 8900 mmol g À1 h À1 for the 20% Zn(OH) 2 /Cd 0.3 Zn 0.7 S photocatalyst (Na 2 S/Na 2 SO 3 ) which are comparable with recently published data (see Table 5). [25][26][27][28][29][30][31][32][33][34][35] Therefore, the sacricial agent as a reaction media plays a key role in the photocatalyst transformation and affects its catalytic activity (see graphical abstract). This is a very promising result, because it is possible to synthesize a composite photocatalyst by a rather simple technique, and the co-catalyst could be tuned in situ during the process of photocatalytic hydrogen evolution.…”

A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn2S4‐Based Photocatalysts

“…There are some reports of allsolid-state Z-scheme heterojunctions used in ZIS-based photocatalysts. [65,73,[141][142][143] Recently, the direct Z-scheme heterojunction photocatalyst has received more and more attention and has been widely used in the preparation of high-efficiency ZIS photocatalysts. [29,63,84,89,144] The direct Z-scheme photocatalyst is a combination of two different semiconductors without the aid of an electronic mediator.…”

Transition metal dichalcogenide-based mixed-dimensional heterostructures for visible-light-driven photocatalysis: Dimensionality and interface engineering

“…In addition to 0D-2D, 1D-2D, and 2D-2D heterostructures, another strategy is to design complex mixed-dimensional heterostructures with hierarchical architectures and multiple components. These can minimize the drawbacks and maximize the advantages of the individual components [196,[211][212][213][214].…”

“…Most of the multi-component heterostructures are used to construct Z-scheme photocatalytic systems, which have more advantages in improving photoactivity than Schottky junctions or type I and type II heterostructures. For example, multicomponent Z-scheme photocatalytic systems can achieve overall water splitting faster at a low cost in electron energy loss via a combination of two narrow-bandgap semiconductors [213,214]. In addition, they can demonstrate a wide absorption range, long-term stability, high charge-separation efficiency, and strong redox ability, representing an improvement over single-component photocatalysts [59].…”