Pristine hexagonal CdS assembled with NiV LDH nanosheet formed p-n heterojunction for efficient photocatalytic hydrogen evolution

Yang, Mengxue; Wang, Kai; Li, Yanbing; Yang, Kaicheng; Jin, Zhiliang

doi:10.1016/j.apsusc.2021.149212

Cited by 47 publications

(14 citation statements)

References 64 publications

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“…CdS is an excellent photocatalytic material due to its wide absorption range and narrow band gap of 2.3-2.4 eV, effectively transferring electrons and reducing the recombination probability of holes and electrons. Based on previous reports, [18,19] CdS and g-C 3 N 4 meet the requirements of heterostructure with well-matched energy bands, which contributes to effective charge separation and effective reduction of electron-hole recombination, leading to higher photocatalytic performance. Heterojunctions such as g-C 3 N 4 /CdS can increase photocatalytic activity by separating photogenerated carriers and holes and accelerating the electron transfer.…”

Section: Introductionmentioning

confidence: 93%

Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Xue

Wang

et al. 2021

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In this study, CdS/g-C 3 N 4 /Vermiculite composites were prepared by hydrothermal and calcinated with expanded-vermiculite as host photocatalysis. Compared with other reference samples, the received CS/CN/VMT composite material has significantly enhanced photocatalytic activity on rhodamine B and methylene blue. The significantly enhanced catalytic efficiency is a benefit originating from the large specific surface area of vermiculite and the excellent electron transport efficiency between g-C 3 N 4 and CdS. Moreover, the degradation rate of the catalyst can still reach 96 % after being repeated four times, indicating that the composite catalyst has facilitated stability and recyclability. Particle capture experiments and ESR studies show that the * O 2 À is the primary active substance of CS/CN/VMT, and a possible photocatalytic degradation path has been proposed.

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Section: Introductionmentioning

confidence: 93%

Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Xue

Wang

et al. 2021

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“…In Fig. 6b, all composite photocatalysts show similar absorption curves with pure Mn0.2Cd0.8S, verifying that CoAl LDH is not embedded into the crystal structure of Mn0.2Cd0.8S but loaded on its surface 39 . Furthermore, the band gap of materials can get by the Eq.…”

Section: Optical Performancementioning

confidence: 61%

Rationally Designed Mn<sub>0.2</sub>Cd<sub>0.8</sub>S@CoAl LDH S-scheme Heterojunction for Efficient Photocatalytic Hydrogen Production

刘珊池¹,

王凯²,

杨梦雪³

et al. 2021

Acta Physico Chimica Sinica

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“…At last, petal‐like NiV‐LDHs is transformed by separation crystallization reaction. [ 23,24 ] Then, the petal‐like NiV‐LDHs were vulcanized with Na 2 S·9H 2 O at a temperature of 120 °C. In a word, based on petal‐like NiV‐LDHs microporous structure, part of the surface nickel is converted into Ni 3 S 2 new crystal, so as to obtain a new petal‐like S‐NiV‐LDHs.…”

Section: Resultsmentioning

confidence: 99%

Facile Sulfuration Route to Enhance the Supercapacitor Performance of 3D Petal‐like NiV‐Layered Double Hydroxide

et al. 2022

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The charge conductivity properties and ionic delivery of pseudocapacitive materials are important factors for the charge storage process. Herein, the new petal-like S-NiVlayered double hydroxide (LDH) materials are successfully synthesized by a presynthetic solvothermal reaction and a sulfidation modification procedure. The specific capacitance of the new petal-like S-NiV-LDHs electrode reaches 1403 F g À1 when the current density is 1 A g À1 , and this is attributed to Ni 3 S 2 formed on the surface of NiV-LDHs. When the current density is up to 20 A g À1 , the rate performance of the new petal-like S-NiV-LDHs electrode is 65.04%. It can be seen that the comprehensive electrochemical performance of the new petal-like S-NiV-LDHs is better than the petal-like NiV-LDHs before modification. When the power density of the S-NiV-LDHs//activated carbon asymmetric supercapacitor cell is 2278.48 W kg À1 , its energy density is 20 Wh kg À1 . The innovation of this work lies in that, based on the microstructure of petal-like NiV-LDHs with rich mesoporous structure, the surface of petal-like NiV-LDHs is slightly sulfurized, which makes the new petal-like S-NiV-LDHs electrode material have smaller electrochemical impedance, richer oxidation states, richer chemical active sites, better energy storage, and cycle stability.

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Pristine hexagonal CdS assembled with NiV LDH nanosheet formed p-n heterojunction for efficient photocatalytic hydrogen evolution

Cited by 47 publications

References 64 publications

Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Rationally Designed Mn<sub>0.2</sub>Cd<sub>0.8</sub>S@CoAl LDH S-scheme Heterojunction for Efficient Photocatalytic Hydrogen Production

Facile Sulfuration Route to Enhance the Supercapacitor Performance of 3D Petal‐like NiV‐Layered Double Hydroxide

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Pristine hexagonal CdS assembled with NiV LDH nanosheet formed p-n heterojunction for efficient photocatalytic hydrogen evolution

Cited by 47 publications

References 64 publications

Synthesis of CdS/g‐C3N4/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Synthesis of CdS/g‐C3N4/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Rationally Designed Mn<sub>0.2</sub>Cd<sub>0.8</sub>S@CoAl LDH S-scheme Heterojunction for Efficient Photocatalytic Hydrogen Production

Facile Sulfuration Route to Enhance the Supercapacitor Performance of 3D Petal‐like NiV‐Layered Double Hydroxide

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Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation

Synthesis of CdS/g‐C₃N₄/Vermiculite Heterostructures with Enhanced Visible Photocatalytic Activity for Dye Degradation