Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered macroporous SrTiO3 decorated with ZnxCd1−xS

Quan, Huiying; Qian, Kejiang; Xuan, Ying; Lou, Lan‐Lan; Yu, Kai; Liu, Shuangxi

doi:10.1007/s11705-021-2089-z

Cited by 9 publications

(1 citation statement)

References 48 publications

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“…High purity AR was used as the carrier gas, and the gas chromatography (GC-7900) equipped with a TCD detector and 5 Å molecular sieve column was used to analyze the evolved H 2 gas. Before the experiment, 100 mg of catalyst sample was added into the mixture of 50 mL of Na 2 S (0.35 M) solution and 50 mL of Na 2 SO 3 (0.25 M) solution, wherein Na 2 S and Na 2 SO 3 were used as sacrificial agents in the photocatalytic hydrogen production experiment [24,25]. Prior to the irradiation test, the reactant solution was evacuated several times to remove air.…”

Section: Test Of Photocatalytic Hydrogen Production Performancementioning

confidence: 99%

One-Dimensional CdS/SrTiO3/Carbon Fiber Core–Shell Photocatalysts for Enhanced Photocatalytic Hydrogen Evolution

Niu

Zhang

et al. 2022

Coatings

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The photocatalytic hydrogen production efficiency of a single SrTiO3 photocatalytic catalyst is often low, which is mainly due to the serious combination of electrons and holes produced by photocatalysis as well as the mismatch of the redox capacity and light absorption range. Construction of semiconductor heterojunctions can solve these problems. CdS has a narrow band gap, which can effectively utilize visible light, and it has a band structure matched with that of SrTiO3. Therefore, CdS is considered as an ideal candidate for constructing heterojunctions with SrTiO3. In this paper, bamboo pulp fibers were used as the substrate, and SrTiO3 was coated on the substrate through the solvothermal process. CF/SrTiO3 rich in oxygen vacancies was formed by high temperature carbonization, and heterojunctions were formed by loading CdS on the surface of the CF/SrTiO3 composite material through the hydrothermal method, thus obtaining one-dimensional CF/SrTiO3/CdS core–shell photocatalysts. The structure and photocatalytic hydrogen production performance of the CF/SrTiO3/CdS core–shell photocatalysts were mainly studied. The photocatalytic hydrogen production experiment showed that the hydrogen production rate of the CF/SrTiO3/CdS-2 sample under the optimized process was as high as 577.39 μmol/g·h, which was about 11 times that of the CF/SrTiO3 sample. In this composite photocatalytic material system, the loading of the CdS nanospheres could enhance the visible light absorption capacity of the composite catalyst, promote the rapid separation and high-speed migration of photocarriers, and significantly improve the photocatalytic activity.

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Section: Test Of Photocatalytic Hydrogen Production Performancementioning

confidence: 99%