BiVO4@ZnIn2S4/Ti3C2 MXene quantum dots assembly all-solid-state direct Z-Scheme photocatalysts for efficient visible-light-driven overall water splitting

Du, Xin; Zhao, Tianyu; Xiu, Ziyuan; Xing, Zipeng; Li, Zhenzi; Pan, Kai; Yang, Shilin; Zhou, Wei

doi:10.1016/j.apmt.2020.100719

Cited by 65 publications

(60 citation statements)

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“…Ti 3 C 2 MXene participated as cocatalysts and promoted the reduction of the proton, while hierarchical core–shell infrastructure offered more active sites and assembled Z‐scheme. [ 148 ]…”

Section: Experimental Advances In Z‐scheme Water Splittingmentioning

confidence: 99%

“…Ti 3 C 2 MXene participated as cocatalysts and promoted the reduction of the proton, while hierarchical core-shell infrastructure offered more active sites and assembled Z-scheme. [148] Along with dual-core shelled structures, oxyhalides materials, like Bi 4 MO 8 X where M = Ta and Nb, and X = Br and Cl, are also considered as promising catalysts with exceptional bandgap. Series of double-layered analogs AA′M 2 O 11 Cl where A/A′ = Sr, Ba, Pb, and Bi, and M is Ti, Nb, and Ta have also been synthesized through precursors of oxyhalides and preliminary synthesized oxides of multiple metals.…”

Section: Perovskite-based Z-schemementioning

confidence: 99%

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Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

et al. 2021

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Photocatalytic water splitting is considered one of the most important and appealing approaches for the production of green H2 to address the global energy demand. The utmost possible form of artificial photosynthesis is a two‐step photoexcitation known as “Z‐scheme”, which mimics the natural photosystem. This process solely relies on the effective coupling and suitable band positions of semiconductors (SCs) and redox mediators for the purpose to catalyze the surface chemical reactions and significantly deter the backward reaction. In recent years, the Z‐scheme strategies and their key role have been studied progressively through experimental approaches. In addition, theoretical studies based on density functional theory have provided detailed insight into the mechanistic aspects of some breathtakingly complex problems associated with hydrogen evolution reaction and oxygen evolution reaction. In this context, this critical review gives an overview of the fundamentals of Z‐scheme photocatalysis, including both theoretical and experimental advancements in the field of photocatalytic water splitting, and suggests future perspectives.

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Section: Experimental Advances In Z‐scheme Water Splittingmentioning

confidence: 99%

Section: Perovskite-based Z-schemementioning

confidence: 99%

Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

et al. 2021

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confidence: 99%

ZnIn₂S₄‐Based Photocatalysts for Energy and Environmental Applications

et al. 2021

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Figure 4. a) Schematic depiction of the proposed growth mechanism for ZnIn 2 S 4 nanotubes and nanoribbons. b, c) Schematic illustration of the possible growth mechanism of ZnIn 2 S 4 microsphere and nanowires obtained in the presence of CTAB and PEG-6000, respectively. d) TEM micrographs at different magnifications of the ZnIn 2 S 4 nanotubes prepared by the solvothermal method at 180 °C. e) TEM images of the ZnIn 2 S 4 nanoribbons prepared from the solvothermal synthesis at 160 °C at low and higher magnification, respectively. f) TEM micrographs of the CTAB-assisted ZnIn 2 S 4 microspheres. g) TEM images of the PEG-6000 assisted ZnIn 2 S 4 samples after ultrasonic dispersion for 60 min. Reproduced with permission. [54]

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“…As shown in Figure 1b, the pure CZS were NPs with a particle size of about 20 nm, and it can be seen that a more serious agglomeration phenomenon has occurred and will mask its reactivity. [ 22 ] In Figure 1c, the bare Ti 3 C 2 T x NSs tend to bend and grow randomly and still agglomerate in some areas, which can be attributed to their interlayer van der Waals attractions and high surface energy. [ 23 ] From Figure 1d,e, a highly oriented layered structure can be observed, indicating that after the surface modification of AET molecules, Ti 3 C 2 ‐A 40 NSs are easy to restratify into a well‐aligned dense structure due to the interslice Coulomb force effect, [ 20 ] which will provide more sites to improve the adhesion degree of CZS NPs.…”

Section: Resultsmentioning

confidence: 99%

Surface‐Activated Ti₃C₂T_x MXene Cocatalyst Assembled with CdZnS‐Formed 0D/2D CdZnS/Ti₃C₂‐A₄₀ Schottky Heterojunction for Enhanced Photocatalytic Hydrogen Evolution

Zhong¹,

Yu²,

Jiang

et al. 2021

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2D MXene-based catalysts, such as Ti 3 C 2 T x have unique, excellent properties and show extraordinary advantages in many catalytic reactions. However, as cocatalysts for photocatalytic hydrogen evolution reaction (HER), MXene has insufficient catalytic activity because the active metal sites of H þ binding are hidden by passivation ÀF/ÀO termination, which hinders postreaction desorption of H 2 . A simple ultrasonic treatment method is used to expose more active sites and adjust the surface work function of Ti 3 C 2 T x , and additionally inactive ÀF/ÀO terminal groups are replaced with diaminoethanethiol, denoted as Ti 3 C 2 -A x , as the surface terminal group through covalent bonds (TiÀS). The optimized photocatalyst (Cd 0.4 Zn 0.6 S/Ti 3 C 2 -A 40 ) demonstrates excellent catalytic activity (HER: 13.44 mmol h À1 g À1 ), which is about 5.8 and 1.9 times higher than that of pristine Cd 0.4 Zn 0.6 S and Cd 0.4 Zn 0.6 S/Ti 3 C 2 with stability (24 h of cycle experiments), outperforming most of the reported MXene-based photocatalysts. The results of relevant experiments and density functional theory calculations reveal that the excellent conductivity of Ti 3 C 2 -A 40 , well-structured Cd 0.4 Zn 0.6 S/ Ti 3 C 2 -A 40 Schottky junction, and the efficient interfacial charge transfer are major factors that contribute to the improved photocatalytic mechanism. This promotes application of surface-modified MXene as an efficient cocatalyst and provides a new idea for design and synthesis of heterojunction materials.

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BiVO4@ZnIn2S4/Ti3C2 MXene quantum dots assembly all-solid-state direct Z-Scheme photocatalysts for efficient visible-light-driven overall water splitting

Cited by 65 publications

References 49 publications

Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

ZnIn₂S₄‐Based Photocatalysts for Energy and Environmental Applications

Surface‐Activated Ti₃C₂T_x MXene Cocatalyst Assembled with CdZnS‐Formed 0D/2D CdZnS/Ti₃C₂‐A₄₀ Schottky Heterojunction for Enhanced Photocatalytic Hydrogen Evolution

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BiVO4@ZnIn2S4/Ti3C2 MXene quantum dots assembly all-solid-state direct Z-Scheme photocatalysts for efficient visible-light-driven overall water splitting

Cited by 65 publications

References 49 publications

Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

Photocatalytic Z‐Scheme Overall Water Splitting: Recent Advances in Theory and Experiments

ZnIn2S4‐Based Photocatalysts for Energy and Environmental Applications

Surface‐Activated Ti3C2Tx MXene Cocatalyst Assembled with CdZnS‐Formed 0D/2D CdZnS/Ti3C2‐A40 Schottky Heterojunction for Enhanced Photocatalytic Hydrogen Evolution

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Product

Resources

About

ZnIn₂S₄‐Based Photocatalysts for Energy and Environmental Applications

Surface‐Activated Ti₃C₂T_x MXene Cocatalyst Assembled with CdZnS‐Formed 0D/2D CdZnS/Ti₃C₂‐A₄₀ Schottky Heterojunction for Enhanced Photocatalytic Hydrogen Evolution