Accelerating charge transfer for highly efficient visible-light-driven photocatalytic H2 production: In-situ constructing Schottky junction via anchoring Ni-P alloy onto defect-rich ZnS

Zhu, Simeng; Qian, Xinjia; Lan, Dongping; Yu, Zhiyang; Wang, Xuxu; Su, Wenyue

doi:10.1016/j.apcatb.2020.118806

Cited by 71 publications

(35 citation statements)

References 48 publications

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“…31 So far, various semiconductors, such as Ni-P, ZnO, TiO 2 , MoS 2 , CdS and Co x S y , have been considered as a prospective "coupled phase" for the preparation of ZnS-based heterojunctions, showing greatly accelerated charge mobility and enhanced photocatalytic activity as compared with the pristine ZnS phase. [32][33][34][35][36][37][38][39][40] Therefore, integrating advanced hollow frame construction and ZnS-based heterostructure engineering through a controllable design can be highly favorable to improve photocatalytic hydrogen evolution activity. Heteroepitaxial growth strategy on metal-organic frameworks (MOFs) and the preparation of bimetallic MOFs are widely reported as facile approaches for the synthesis of multiphasic nanoarchitectures, which could be converted to the desired heterostructure by post-synthetic treatments.…”

Section: Introductionmentioning

confidence: 99%

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Shen

Huang

Chen

et al. 2022

Catal. Sci. Technol.

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Section: Introductionmentioning

confidence: 99%

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Shen

Huang

Chen

et al. 2022

Catal. Sci. Technol.

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“…Despite substantial progress in the use of Pt to construct a conventional Schottky junction (e.g., the most commonly used Pt/photocatalyst system), several challenges remain; these include high-cost and substantial Pt loss during cyclic testing. Most importantly, the following parameters of the charge recombination process related to Pt are not well understood and cannot be controllably designed: V transfer (the electron transfer rate from MOF to co-catalyst), the electron transfer rate from MOFs to Pt, which has been generally regarded to significantly influence the electron-hole recombination efficiency; [13,[16][17][18][19][20][21][22][23][24] D transfer (the electron transfer distance from MOF to co-catalyst), the distance for electron transfer from MOFs to Pt, which determines the final amount of available charge after the long-distance transfer process; [16] V consume (the electron consume rate from co-catalyst to the reactant), the rate of electron transfer from Pt to the reactant for activation, which reflects the efficiency of electron use and the photoreduction efficiency.…”

Section: Introductionmentioning

confidence: 99%

Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H₂ Production Activity

Wang

Zhang

et al. 2021

Advanced Science

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Manipulation of the co-catalyst plays a vital role in charge separation and reactant activation to enhance the activity of metal-organic framework-based photocatalysts. However, clarifying and controlling co-catalyst related charge transfer process and parameters are still challenging. Herein, three parameters are proposed, V transfer (the electron transfer rate from MOF to co-catalyst), D transfer (the electron transfer distance from MOF to co-catalyst), and V consume (the electron consume rate from co-catalyst to the reactant), related to Pt on UiO-66-NH 2 in a photocatalytic process. These parameters can be controlled by rational manipulation of the co-catalyst via three steps: i) Compositional design by partial substitution of Pt with Pd to form PtPd alloy, ii) location control by encapsulating the PtPd alloy into UiO-66-NH 2 crystals, and iii) facet selection by exposing the encapsulated PtPd alloy (100) facets. As revealed by ultrafast transient absorption spectroscopy and first-principles simulations, the new Schottky junction (PtPd (100)@UiO-66-NH 2 ) with higher V transfer and V consume exhibits enhanced electron-hole separation and H 2 O activation than the traditional Pt/UiO-66-NH 2 junction, thereby leading to a significant enhancement in the photoactivity.

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“…The work function of CdTMT is lower than that of the metal Sn by 4.48 eV, thus forming the Schottky heterojunction in close contact. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

Cd₃(C₃N₃S₃)₂ Polymer/Sn Schottky Heterojunction for Broadband‐Solar Highly Selective Photocatalytic CO₂ Reduction

Zhang

Dai

et al. 2021

Solar RRL

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Solar‐driven carbon dioxide reduction is a promising strategy to manage the global carbon balance. Here, we built the Sn/Cd3(C3N3S3)2 (CdTMT) composite to achieve nearly 99% selectivity in the conversion of CO2 to CO. The Gibbs free energy reveals the lower activation energy barrier of CdTMT and Sn to the formation of the *OCHO intermediate. The metal Sn on the surface of CdTMT to form the Schottky heterojunction significantly improves the separation efficiency of photogenerated carriers, and the surface plasmon resonance of Sn can expand and enhance the visible light response range and absorption intensity, boosting the photocatalytic activity for CO2 reduction, which was about 3.7 times that of the pure CdTMT. Therefore, this study can provide new insights into the design and construction of metal–organic semiconductors to realize high‐selectivity heterojunctions in CO2 photoreduction conversion.

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Accelerating charge transfer for highly efficient visible-light-driven photocatalytic H2 production: In-situ constructing Schottky junction via anchoring Ni-P alloy onto defect-rich ZnS

Cited by 71 publications

References 48 publications

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H₂ Production Activity

Cd₃(C₃N₃S₃)₂ Polymer/Sn Schottky Heterojunction for Broadband‐Solar Highly Selective Photocatalytic CO₂ Reduction

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Accelerating charge transfer for highly efficient visible-light-driven photocatalytic H2 production: In-situ constructing Schottky junction via anchoring Ni-P alloy onto defect-rich ZnS

Cited by 71 publications

References 48 publications

Phase segregation via etching-induced cation migration in CoSx–ZnS nanoarchitectures for solar hydrogen evolution

Phase segregation via etching-induced cation migration in CoSx–ZnS nanoarchitectures for solar hydrogen evolution

Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H2 Production Activity

Cd3(C3N3S3)2 Polymer/Sn Schottky Heterojunction for Broadband‐Solar Highly Selective Photocatalytic CO2 Reduction

Contact Info

Product

Resources

About

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Phase segregation via etching-induced cation migration in CoS_x–ZnS nanoarchitectures for solar hydrogen evolution

Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H₂ Production Activity

Cd₃(C₃N₃S₃)₂ Polymer/Sn Schottky Heterojunction for Broadband‐Solar Highly Selective Photocatalytic CO₂ Reduction