Facile fabrication of ZnIn2S4/SnS2 3D heterostructure for efficient visible-light photocatalytic reduction of Cr(VI)

Pan, Jingwen; Guan, Zhongjie; Yang, Jianjun; Li, Qiuye

doi:10.1016/s1872-2067(19)63422-4

Cited by 107 publications

(50 citation statements)

References 53 publications

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“…Besides the construction of a heterojunction, morphology control is another considered effective way to improve the activity of the catalyst. 21,22…”

Section: Introductionmentioning

confidence: 99%

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Jin

2022

Catal. Sci. Technol.

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“…Besides the construction of a heterojunction, morphology control is another considered effective way to improve the activity of the catalyst. 21,22…”

Section: Introductionmentioning

confidence: 99%

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Jin

2022

Catal. Sci. Technol.

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“…The construction of heterojunctions by coupling narrow-band-gap semiconductors has been demonstrated to be a powerful strategy to efficiently extend light absorption and promote charge separation. The indirect bandgap semiconductor SnS2 has many inherent advantages, such as its narrow bandgap (Eg = 2.18-2.44 eV), low toxicity, excellent chemical stability, low cost, and wide spectral response [16][17][18][19]. Therefore, the combination of ultrathin SnS2 nanosheets with porous TiO2 hollow spheres should provide significant synergistic effects in terms of the photocatalytic performance of the heterojunction.…”

Section: Introductionmentioning

confidence: 99%

Accelerating directional charge separation via built-in interfacial electric fields originating from work-function differences

Xue

Shao

et al. 2021

Chinese Journal of Catalysis

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In this work, a hierarchical porous SnS2/rGO/TiO2 hollow sphere heterojunction that allows highly-efficient light utilization and shortening distance of charge transformation is rationally designed and synthesized. More importantly, an rGO interlayer is successfully embedded between the TiO2 hollow sphere shells and outermost SnS2 nanosheets. This interlayer functions as a bridge to connect the two light-harvesting semiconductors and acts as a hole injection layer in the tandem heterojunction. The induced built-in electric fields on both sides of the interface precisely regulate the spatial separation and directional migration of the photo-generated holes from the light-harvesting semiconductor to the rGO hole injection interlayer. These synergistic effects greatly prolong the lifetime of the photo-induced charge carriers. The optimized tandem heterojunction with a 2 wt% rGO loading demonstrate enhanced visible-light-driven photocatalytic activity for Rhodamine B (RhB) dye degradation (removal rate: 97.3%) and Cr(VI) reduction (removal rate: 97.09%). This work reveals a new strategy for the rational design and assembly of hollow-structured photocatalytic materials with spatially separated reduction and oxidation surfaces to achieve excellent photocatalytic performance.

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“…Obviously in Figure 8C, the LSV curve of composite catalyst bends first, followed by MCS, and CPO last. It shows that the 10% CPO/MCS composite catalyst has a smaller cracking potential and the smallest hydrogen overpotential under a linearly changing current 48,49 . It can be seen from the characterization of photocatalytic kinetics that after MCS is inserted into the middle of the petals of the CPO, a heterojunction can be formed on the contact surface of the two.…”

Section: Resultsmentioning

confidence: 96%

Mn _0. ₂ Cd ₀ _. ₈ S modified with 3D flower‐shaped Co ₃ ( PO ₄ ) ₂ for efficient pho

et al. 2021

Int J Energy Res

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Summary PO43− ions have good conductivity and can provide open channels for rapid ion migration. In contrast, the solid solution Mn0.2Cd0.8S catalyst has been limited for a long time due to its low charge separation efficiency and its tendency to lead to rapid electrons and holes binding. Therefore, on the basis of in‐depth study catalysts of Co3(PO4)2 and Mn0.2Cd0.8S, we successfully synthesized flake‐shaped stacked nano‐flower shaped Co3(PO4)2 and rod‐shaped Mn0.2Cd0.8S. In addition, combined with traditional physical heating and stirring method, Mn0.2Cd0.8S was inserted into the petals of Co3(PO4)2, forming a heterojunction between their contact surfaces to promote photocatalytic hydrogen production. The study found that when the amount of Co3(PO4)2 was 10%, the hydrogen reduction efficiency of the composite catalyst reached was the best, reaching 0.57 mmol (11.4 mmol/h/g) within 5 hours, which was three times that of the single catalyst Mn0.2Cd0.8S. The results show that the formation of heterojunction provides an open channel for rapid charge transfer and reduces the consumption of photo generate carriers. Moreover, the flake‐like accumulation of Co3(PO4)2 provided a 3D reaction space for Mn0.2Cd0.8S, and increased the reaction active sites omaf, the composite catalyst. Therefore, more effective photo‐generated carriers migrate to the surface of Co3(PO4)2 and then participate in the photocatalytic evolution reaction of hydrogen. This study provides a new idea for improving the photocatalytic hydrogen production performance of Mn0.2Cd0.8S catalyst.

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Facile fabrication of ZnIn2S4/SnS2 3D heterostructure for efficient visible-light photocatalytic reduction of Cr(VI)

Cited by 107 publications

References 53 publications

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Accelerating directional charge separation via built-in interfacial electric fields originating from work-function differences

Mn _0. ₂ Cd ₀ _. ₈ S modified with 3D flower‐shaped Co ₃ ( PO ₄ ) ₂ for efficient pho

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Facile fabrication of ZnIn2S4/SnS2 3D heterostructure for efficient visible-light photocatalytic reduction of Cr(VI)

Cited by 107 publications

References 53 publications

ZIF-67 derived hierarchical hollow Co3S4@Mo2S3 dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

ZIF-67 derived hierarchical hollow Co3S4@Mo2S3 dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Accelerating directional charge separation via built-in interfacial electric fields originating from work-function differences

Mn 0. 2 Cd 0 . 8 S modified with 3D flower‐shaped Co 3 ( PO 4 ) 2 for efficient pho

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ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Mn _0. ₂ Cd ₀ _. ₈ S modified with 3D flower‐shaped Co ₃ ( PO ₄ ) ₂ for efficient pho