Semiconductor-based photocatalysts for photocatalytic and photoelectrochemical water splitting: will we stop with photocorrosion?

Chen, Sha; Huang, Danlian; Xu, Piao; Xue, Wenjing; Lei, Lei; Cheng, Min; Wang, Rongzhong; Liu, Xigui; Deng, Rui

doi:10.1039/c9ta12799b

Cited by 262 publications

(146 citation statements)

References 212 publications

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“…The separation of charge carriers by coupling CdS and BFO, in addition to increasing hydrogen production, increases the stability and reusability of CdS. The reaction of CdS decomposition by light radiation is as Equations ) and () that produce elemental sulfur 56 :

CdS + h^{+} \to {Cd}^{2 +} + normalS .

CdS + 4 h^{+} + H_{2} normalO + O_{2} \to {Cd}^{2 +} + {SO}_{4}^{2 -} + {4H}^{+} .

…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

Kolivand

Sharifnia

2020

Int J Energy Res

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Summary Cadmium sulfide (CdS) is one of the most famous photocatalyst for water splitting because of relevant band edge position. But it has disadvantage such as recombination of charge carrier and photocorrosion in pure water that sacrificial materials must be used to fix it. On the other hand, the use of other photocatalysts alongside it can greatly eliminate these disadvantages. So, in favor of boosting photocatalytic efficiency, it was coupled with BiFeO3 that is a promising visible light active perovskite structure and has ferroelectric properties. The CdS and BiFeO3 powders were synthesized by precipitation and hydrothermal methods, respectively. The pure samples and heterojunctions were investigated by XRD, FESEM, transmission electron microscopy, EDX, UV‐vis, PL, N2 adsorption/desorption isotherms, photocurrent density measurement, electrochemical impedance spectroscopy and Mott‐Schottky analysis to compare the structure, composition, morphology, and optical property before and after modification. The maximum photocatalytic activity, 600.2 μmol/g/h was obtained by heterojunction containing 50 wt% BiFeO3 (CB‐50) from pure water. Also from the experiments results, CB‐50 showed much higher reusability than pure CdS. The enhanced stability and photocatalytic activity of CB‐50 are mainly attributed to charge separation as a result of Z‐scheme charge transfer mechanism as well as the increased light absorption efficiency. In addition to increasing hydrogen production, the ability to use pure water in a closed system without additional materials is other advantage of this photocatalyst.

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CdS + h^{+} \to {Cd}^{2 +} + normalS .

CdS + 4 h^{+} + H_{2} normalO + O_{2} \to {Cd}^{2 +} + {SO}_{4}^{2 -} + {4H}^{+} .

…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

Kolivand

Sharifnia

2020

Int J Energy Res

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“…Among different co-catalysts cadmium sulfide (CdS) has attracted a lot of attention for heterojunction construction due to its narrow bandgap with a high CB position which can greatly enhance the photocatalytic activity by effectively separating the electron-hole pairs and visible light absorption. 25 Many CdS based heterojunction photocatalysts have been developed so far, including CdS/WO3, 26 MoS2/CdS, 27 CdS/ZnWO4, 28 CdS/BiVO4, 29 which were prepared via different methods and showed enhanced photocatalytic activities. We have also reported CdS@CdWO4, 30 for hydrogen generation and pollutant degradation.…”

Section: H2omentioning

confidence: 99%

CdS decorated MnWO₄ nanorod nanoheterostructures: a new 0D–1D hybrid system for enhanced photocatalytic hydrogen production under natural sunlight

et al. 2021

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“…Thus, controlling the surface morphology is the most effective strategy for increasing the photocatalytic performance of metal oxides through the enhancement of light absorption and increase in the effective interfacial area. [ 51 ]…”

Section: Rationally Designed Heterostructure For Photocatalysismentioning

confidence: 99%

Rational Design of Metal Oxide‐Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

Xia

Wang

Kim

et al. 2020

Adv Funct Materials

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Solar‐driven photo‐to‐chemical conversion is an interesting approach for energy harvesting and storage with high sustainability. To achieve high photo‐to‐chemical conversion efficiency, it is important to develop cost‐effective and stable catalysts with high activity. Metal oxides provide an interesting platform for the development of efficient catalysts owing to their abundance, high stability, and tunable band edges. Their performance highly depends on the rational design of heterostructures with engineered electronic structures, modified charge migration behavior, tailored interfacial properties, and amplified electromagnetic fields. All these enable the achievement of efficient light harvesting, promoted charge separation and transport, and accelerated surface reactions. Herein, a recent study on rationally designed metal oxide heterostructures for enhancing photo‐to‐chemical energy conversion via photocatalytic and photoelectrochemical systems is reviewed. The approaches to enhance their conversion efficiency are as follows: 1) surface modification via loading of plasmonic metals and other photosensitizers; 2) surface regulation, including morphology, defect, and dopants; 3) interfacial assembly with metal oxides, other metal compounds, and metal‐free materials. Moreover, the underlying reaction mechanisms of metal oxide‐based heterostructures and how they affect the energy conversion efficiency are discussed. Finally, the challenges and perspectives on the development of metal oxide‐based heterostructures and associated photo‐to‐chemical devices are presented.

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Semiconductor-based photocatalysts for photocatalytic and photoelectrochemical water splitting: will we stop with photocorrosion?

Abstract: This review outlines recent advances in strategies to improve the photoreaction stability of photocatalytic/photoelectrochemical water splitting systems, and discusses the tactics involved in improving the stability of such systems with different photocorrosion mechanisms.

Cited by 262 publications

References 212 publications

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

CdS decorated MnWO₄ nanorod nanoheterostructures: a new 0D–1D hybrid system for enhanced photocatalytic hydrogen production under natural sunlight

Rational Design of Metal Oxide‐Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

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Semiconductor-based photocatalysts for photocatalytic and photoelectrochemical water splitting: will we stop with photocorrosion?

Abstract: This review outlines recent advances in strategies to improve the photoreaction stability of photocatalytic/photoelectrochemical water splitting systems, and discusses the tactics involved in improving the stability of such systems with different photocorrosion mechanisms.

Cited by 262 publications

References 212 publications

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO 3 heterojunction without using sacrificial agent

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO 3 heterojunction without using sacrificial agent

CdS decorated MnWO4 nanorod nanoheterostructures: a new 0D–1D hybrid system for enhanced photocatalytic hydrogen production under natural sunlight

Rational Design of Metal Oxide‐Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

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Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

Enhanced photocatalytic hydrogen evolution from water splitting by Z‐scheme CdS / BiFeO ₃ heterojunction without using sacrificial agent

CdS decorated MnWO₄ nanorod nanoheterostructures: a new 0D–1D hybrid system for enhanced photocatalytic hydrogen production under natural sunlight