13–15 However, bare ZnCdS generally exhibits slow electron transfer kinetics, leading to relatively low photoactivity. ZnCdS solid solution has received much interest in recent years due to its tunable band edge positions and superior photocatalytic activity compared to the corresponding CdS. Nonetheless, most of the semiconductors face profuse disadvantages, such as poor absorption of visible light, insufficient active sites, and severe photocorrosion, which mainly affect the improvement of photocatalytic H 2 generation activity.
Black glass enhanced v0.5 series#
3 A series of photocatalysts, such as TiO 2, 4 g-C 3N 4, 5–8 CdS, 9,10 and porous organic polymers, 11 have attracted enormous attention owing to their suitable band structures for photocatalytic H 2 evolution from water splitting. 2 Photocatalytic water splitting based on solar light irradiation has been verified as an effective way to produce H 2. 1 Hydrogen is a superior alternative to fossil fuels due to its versatility, environmental friendliness, and renewability. Introduction Exploiting renewable energy has been regarded as an efficient approach to resolving the increasing energy crisis and environmental pollution.
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This work paves a promising way to construct hybrid nanostructures based on porous Co-based nanosheets and metal sulfides for enhanced photo/electro-catalysis. The 2D porous CC nanosheets serve as an efficient cocatalyst to promote photogenerated charge carrier separation, reduce reaction overpotential, and provide abundant reaction sites. The significant improvement in the photocatalytic water splitting of CC/ZCS is mainly derived from the intimate interface between CC nanosheets and ZCS nanoparticles. Moreover, the Co–CoO/Zn 0.5Cd 0.5S (CC/ZCS) also processes long-term activity and superior stability during the photocatalytic H 2-evolution reactions. The optimized 5CC/ZCS composite exhibits a high H 2 generation rate of 8152 μmol h −1 g −1, which is approximately 46- and 10-fold that of pristine ZCS and 3% Pt/ZCS, respectively. In this study, 2D porous Co–CoO (CC) nanosheets prepared by a facile annealing approach were employed as a support to anchor Zn 0.5Cd 0.5S (ZCS) solid solution toward visible-light-induced photocatalytic H 2 production.
![black glass enhanced v0.5 black glass enhanced v0.5](https://cdn.mos.cms.futurecdn.net/MpWEZqsbXNswF7hV7tFMeJ.jpeg)
![black glass enhanced v0.5 black glass enhanced v0.5](https://images-wixmp-ed30a86b8c4ca887773594c2.wixmp.com/i/c5b4e9ee-3f0e-47d7-beb2-f380b7ae9ff8/d3fw5ry-4bf4ef87-bee1-408d-b666-1fe14bfb90ed.png)
However, the two-dimensional (2D) porous-structured Co-based cocatalysts toward photocatalytic hydrogen (H 2) production application are rarely reported. Co-Based cocatalysts have attracted considerable attention as potential alternatives for the noble metal (Pt) in photocatalytic water splitting.