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Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance. / Kozlova, Ekaterina A.; Gribov, Evgenii N.; Kurenkova, Anna Yu et al.

In: International Journal of Hydrogen Energy, Vol. 44, No. 42, 03.09.2019, p. 23589-23599.

Research output: Contribution to journal › Article › peer-review

Harvard

Kozlova, EA, Gribov, EN, Kurenkova, AY, Cherepanova, SV, Gerasimov, EY & Kozlov, DV 2019, 'Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance', International Journal of Hydrogen Energy, vol. 44, no. 42, pp. 23589-23599. https://doi.org/10.1016/j.ijhydene.2019.07.081

APA

Kozlova, E. A., Gribov, E. N., Kurenkova, A. Y., Cherepanova, S. V., Gerasimov, E. Y., & Kozlov, D. V. (2019). Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance. International Journal of Hydrogen Energy, 44(42), 23589-23599. https://doi.org/10.1016/j.ijhydene.2019.07.081

Vancouver

Kozlova EA, Gribov EN, Kurenkova AY, Cherepanova SV, Gerasimov EY, Kozlov DV. Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance. International Journal of Hydrogen Energy. 2019 Sept 3;44(42):23589-23599. doi: 10.1016/j.ijhydene.2019.07.081

Author

Kozlova, Ekaterina A. ; Gribov, Evgenii N. ; Kurenkova, Anna Yu et al. / Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance. In: International Journal of Hydrogen Energy. 2019 ; Vol. 44, No. 42. pp. 23589-23599.

BibTeX

@article{89ff7d8be29e4188946ff89fd04da8ed,
title = "Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance",
abstract = "Novel composite photocatalysts consisting of a cadmium and zinc sulfide solid solution (Cd0.6Zn0.4S) and zinc sulfide (ZnS) nanoparticles were successfully prepared by a simple hydrothermal treatment of suspended Cd0.3Zn0.7S at 120 °C. The as-obtained materials were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and UV-VIS diffuse reflection spectroscopy. The obtained photocatalysts were tested in the photocatalytic evolution of hydrogen from a Na2S/Na2SO3 aqueous solution under visible light irradiation (λ = 450 nm). It is shown that the hydrothermal treatment of Cd0.3Zn0.7S at 120 °C increases the activity by a factor of 7.5 due to the phase transformations of the solid solution with the formation of the multiphase Cd0.6Zn0.4S/ZnS sample. The deposition of gold on the surface of Cd0.6Zn0.4S/ZnS leads to a further increase in activity: the achieved photocatalytic activity and quantum efficiency (450 nm) for 1%Au/Cd0.6Zn0.4S/ZnS are 17.4 mmol g−1 h−1 and 42.6%, respectively. This excellent performance is found to be attributable to the transformation of Cd1-xZnxS from the cubic to the hexagonal phase during the hydrothermal treatment. Additionally, photoelectrodes based on Cd0.6Zn0.4S/ZnS and FTO were synthesized and tested in a two-electrode cell. A high value of the photocurrent equal to 0.5 mA/cm2 is achieved for the Cd0.6Zn0.4S/ZnS/FTO electrode. An investigation by means of impedance spectroscopy reveals the longer lifetime of photogenerated charge carriers in the Cd0.6Zn0.4S/ZnS/FTO photoelectrode if to compare with Cd0.3Zn0.7S/FTO system.",
keywords = "CdZnS, Photocatalytic hydrogen production, Photoelectrochemical properties, Visible light, HETEROJUNCTION, AQUEOUS-SOLUTIONS, SEMICONDUCTOR, HYDROGEN EVOLUTION, NANOPARTICLES, IRRADIATION, CDS, AU, Cd1-xZnxS, S QUANTUM DOTS, FABRICATION",
author = "Kozlova, {Ekaterina A.} and Gribov, {Evgenii N.} and Kurenkova, {Anna Yu} and Cherepanova, {Svetlana V.} and Gerasimov, {Evgeny Yu} and Kozlov, {Denis V.}",
year = "2019",
month = sep,
day = "3",
doi = "10.1016/j.ijhydene.2019.07.081",
language = "English",
volume = "44",
pages = "23589--23599",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Ltd",
number = "42",

}

RIS

TY - JOUR

T1 - Synthesis of multiphase Au/Cd0.6Zn0.4S/ZnS photocatalysts for improved photocatalytic performance

AU - Kozlova, Ekaterina A.

AU - Gribov, Evgenii N.

AU - Kurenkova, Anna Yu

AU - Cherepanova, Svetlana V.

AU - Gerasimov, Evgeny Yu

AU - Kozlov, Denis V.

PY - 2019/9/3

Y1 - 2019/9/3

N2 - Novel composite photocatalysts consisting of a cadmium and zinc sulfide solid solution (Cd0.6Zn0.4S) and zinc sulfide (ZnS) nanoparticles were successfully prepared by a simple hydrothermal treatment of suspended Cd0.3Zn0.7S at 120 °C. The as-obtained materials were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and UV-VIS diffuse reflection spectroscopy. The obtained photocatalysts were tested in the photocatalytic evolution of hydrogen from a Na2S/Na2SO3 aqueous solution under visible light irradiation (λ = 450 nm). It is shown that the hydrothermal treatment of Cd0.3Zn0.7S at 120 °C increases the activity by a factor of 7.5 due to the phase transformations of the solid solution with the formation of the multiphase Cd0.6Zn0.4S/ZnS sample. The deposition of gold on the surface of Cd0.6Zn0.4S/ZnS leads to a further increase in activity: the achieved photocatalytic activity and quantum efficiency (450 nm) for 1%Au/Cd0.6Zn0.4S/ZnS are 17.4 mmol g−1 h−1 and 42.6%, respectively. This excellent performance is found to be attributable to the transformation of Cd1-xZnxS from the cubic to the hexagonal phase during the hydrothermal treatment. Additionally, photoelectrodes based on Cd0.6Zn0.4S/ZnS and FTO were synthesized and tested in a two-electrode cell. A high value of the photocurrent equal to 0.5 mA/cm2 is achieved for the Cd0.6Zn0.4S/ZnS/FTO electrode. An investigation by means of impedance spectroscopy reveals the longer lifetime of photogenerated charge carriers in the Cd0.6Zn0.4S/ZnS/FTO photoelectrode if to compare with Cd0.3Zn0.7S/FTO system.

AB - Novel composite photocatalysts consisting of a cadmium and zinc sulfide solid solution (Cd0.6Zn0.4S) and zinc sulfide (ZnS) nanoparticles were successfully prepared by a simple hydrothermal treatment of suspended Cd0.3Zn0.7S at 120 °C. The as-obtained materials were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and UV-VIS diffuse reflection spectroscopy. The obtained photocatalysts were tested in the photocatalytic evolution of hydrogen from a Na2S/Na2SO3 aqueous solution under visible light irradiation (λ = 450 nm). It is shown that the hydrothermal treatment of Cd0.3Zn0.7S at 120 °C increases the activity by a factor of 7.5 due to the phase transformations of the solid solution with the formation of the multiphase Cd0.6Zn0.4S/ZnS sample. The deposition of gold on the surface of Cd0.6Zn0.4S/ZnS leads to a further increase in activity: the achieved photocatalytic activity and quantum efficiency (450 nm) for 1%Au/Cd0.6Zn0.4S/ZnS are 17.4 mmol g−1 h−1 and 42.6%, respectively. This excellent performance is found to be attributable to the transformation of Cd1-xZnxS from the cubic to the hexagonal phase during the hydrothermal treatment. Additionally, photoelectrodes based on Cd0.6Zn0.4S/ZnS and FTO were synthesized and tested in a two-electrode cell. A high value of the photocurrent equal to 0.5 mA/cm2 is achieved for the Cd0.6Zn0.4S/ZnS/FTO electrode. An investigation by means of impedance spectroscopy reveals the longer lifetime of photogenerated charge carriers in the Cd0.6Zn0.4S/ZnS/FTO photoelectrode if to compare with Cd0.3Zn0.7S/FTO system.

KW - CdZnS

KW - Photocatalytic hydrogen production

KW - Photoelectrochemical properties

KW - Visible light

KW - HETEROJUNCTION

KW - AQUEOUS-SOLUTIONS

KW - SEMICONDUCTOR

KW - HYDROGEN EVOLUTION

KW - NANOPARTICLES

KW - IRRADIATION

KW - CDS

KW - AU

KW - Cd1-xZnxS

KW - S QUANTUM DOTS

KW - FABRICATION

UR - http://www.scopus.com/inward/record.url?scp=85070230039&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2019.07.081

DO - 10.1016/j.ijhydene.2019.07.081

M3 - Article

AN - SCOPUS:85070230039

VL - 44

SP - 23589

EP - 23599

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 42

ER -

ID: 21241216