S-scheme enhanced photocatalysis on titanium oxide clusters functionalized with soluble perylene diimides

Dai, Shuqi; Xu, Yongsheng; Zhang, Weijie; Li, Shurong; Guo, Qi; Cui, Jinyi; Song, Yaohao; Yuan, Jun; Peng, Wenchao; Huang, Mingjun

doi:10.1039/d2ta06372g

Cited by 12 publications

(5 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the photo-deposition of MnO x influences the binding energy position of S 2p, underscoring a robust interaction force among MoS 2 , CdS, and MnO x . [38][39][40] The binding energy characteristic peaks at 404.70 eV and 411.46 eV are assigned to Cd 3d 5/2 and Cd 3d 3/2 in CdS, respectively (Figure 4c), distinctly indicating the presence of Cd 2+ in CdS. [33,41] Likewise, the positions of the characteristic peaks of Cd 3d binding energy undergo shifted after the in situ induced tip growth of MoS 2 and in situ photo-deposition of MnO x , indicating a robust and substantial interaction among the three catalysts.…”

Section: Analysis Of Elemental Composition and Valencementioning

confidence: 99%

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

Li,

Wang,

Jin

et al. 2024

Small

View full text Add to dashboard Cite

Tailoring advanced anisotropy‐driven efficient separation and migration of photogenerated carriers is a pivotal stride toward enhancing photocatalytic activity. Here, CdS‐MoS2 binary photocatalysts are tailored into a dumbbell shape by leveraging the rod‐shaped morphology of CdS and employing an in situ tip‐induction strategy. To further enhance the photocatalytic activity, an in situ photo‐deposition strategy is incorporated to cultivate MnOx particles on the dumbbell‐shaped CdS‐MoS2. The in situ deposition of MnOx effectively isolated the oxidatively active sites on the CdS surface, emphasizing the reductively active crystalline face of CdS, specifically the (002) face. Benefiting from its robust activity as a reduction active site, MoS2 adeptly captures photogenerated electrons, facilitating the reduction of H+ to produce hydrogen. The anisotropically driven separation of CdS photogenerated carriers markedly mitigates the Coulomb force or binding force of the photogenerated electrons, thus promoting a smoother migration toward the active site for photocatalytic hydrogen evolution. The hydrogen evolution rate of 35MnOx‐CdS‐MoS2‐3 surpasses that of CdS by nearly an order of magnitude, achieving a quantum efficiency of 22.30% at 450 nm. Under simulated solar irradiation, it attains a rate of 42.86 mmol g−1 h−1. This work imparts valuable insights for the design of dual co‐catalysts, anisotropy‐driven spatial vectorial charge separation and migration, and the analysis of migration pathways of photogenerated carriers.

show abstract

Section: Analysis Of Elemental Composition and Valencementioning

confidence: 99%

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

Li,

Wang,

Jin

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

“…Compared to the type-II heterojunction, TZS, and ASSZH, S-scheme heterojunctions possess a unique interfacial internal electric field (IIEF), leading to more efficient PC separation and transfer [59][60][61]. In addition, it can reserve the strongest redox abilities of the heterojunction system, thus achieving more efficient photocatalytic reactions in thermodynamics [62,63]. Since the proposal of the S-scheme heterojunction, substantial review articles have been published on this topic, providing compelling evidence for the significant advantages it offers in photocatalysis [49,58,59,[70][71][72].…”

Section: Introductionmentioning

confidence: 99%

A review on ZnO-based S-scheme heterojunction photocatalysts

Jiang,

Cheng,

Zhang

et al. 2023

Chinese Journal of Catalysis

View full text Add to dashboard Cite

“…This is due to the band bending of the material and the driving force of the built-in electric field. [23,28,29] This charge transport mode maximizes the retention of photogenerated charges, which is beneficial for achieving the highest performance in photocatalytic reactions. [30][31][32] Researchers worldwide have been actively exploring ways to develop heterogeneous structures for photocatalytic materials.…”

Section: Introductionmentioning

confidence: 99%

Peanut‐Like Zn_0.5Cd_0.5S/BiVO₄ S‐Scheme Heterojunction Photocatalysts Toward Optimized Visible Light Photocatalytic Performance

Wang

Xing

et al. 2023

Solar RRL

View full text Add to dashboard Cite

The development of heterojunction composite photocatalysts with sophisticated charge transfer mechanisms and interfaces is a promising approach to enhance photocatalytic efficiency. Herein, for the first time, a peanut‐like Zn0.5Cd0.5S/BiVO4 S‐scheme heterostructure visible‐light composite photocatalyst via a two‐step hydrothermal method is synthesized. S‐scheme heterostructures, which can maintain the maximum redox capacity in the conduction and valence bands of the catalyst, have been established as an effective charge transfer mode in the field of photocatalysis. The Zn0.5Cd0.5S/BiVO4 heterojunction photocatalyst exhibits 99.52% degradation efficiency for tetracycline‐based organic pollutants under visible light irradiation. In addition, the photocatalytic hydrogen production efficiency of the composite catalyst is as high as 8969.58 μmol g−1 h−1, which is 69.24 and 4.35 times higher than that of single BiVO4 and Zn0.5Cd0.5S, respectively. Through density functional theory calculations and experimental studies, the material conformed to the charge transfer mode of the S‐scheme heterojunction is determined. The improved photocatalytic efficiency can be attributed to the formation of S‐scheme heterogeneous interface, which bends the energy band at the interfacial contact, and the formation of an internal electric field, which hinders rapid charge recombination and prolongs the lifetime of charge carriers.

show abstract

S-scheme enhanced photocatalysis on titanium oxide clusters functionalized with soluble perylene diimides

Abstract: Fabricating S-scheme photocatalysts to optimize their ability of using sunlight has gained great attention in environmental remediation. Herein, we designed a soluble hybrid, Titanium Oxide Cluster-Perylene Diimide-Polyhedral Oligomeric Silsesquioxane (TOC-PDI-POSS)....

Cited by 12 publications

References 37 publications

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

A review on ZnO-based S-scheme heterojunction photocatalysts

Peanut‐Like Zn_0.5Cd_0.5S/BiVO₄ S‐Scheme Heterojunction Photocatalysts Toward Optimized Visible Light Photocatalytic Performance

Contact Info

Product

Resources

About

S-scheme enhanced photocatalysis on titanium oxide clusters functionalized with soluble perylene diimides

Abstract: Fabricating S-scheme photocatalysts to optimize their ability of using sunlight has gained great attention in environmental remediation. Herein, we designed a soluble hybrid, Titanium Oxide Cluster-Perylene Diimide-Polyhedral Oligomeric Silsesquioxane (TOC-PDI-POSS)....

Cited by 12 publications

References 37 publications

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

A review on ZnO-based S-scheme heterojunction photocatalysts

Peanut‐Like Zn0.5Cd0.5S/BiVO4 S‐Scheme Heterojunction Photocatalysts Toward Optimized Visible Light Photocatalytic Performance

Contact Info

Product

Resources

About

Peanut‐Like Zn_0.5Cd_0.5S/BiVO₄ S‐Scheme Heterojunction Photocatalysts Toward Optimized Visible Light Photocatalytic Performance