Synthesis of hierarchical ZnV                         2                         O                         6                          nanosheets with enhanced activity and stability for visible light driven CO                         2                          reduction to solar fuels

Abdullah Bafaqeer; Muhammad Tahir; Nor Aishah Saidina Amin

doi:10.1016/j.apsusc.2017.11.116

Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels

Abdullah Bafaqeer, Muhammad Tahir^*, Nor Aishah Saidina Amin

^*Corresponding author for this work

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

60 Scopus citations

Abstract

Hierarchical nanostructures have lately garnered enormous attention because of their remarkable performances in energy storage and catalysis applications. In this study, novel hierarchical ZnV ₂ O ₆ nanosheets, formulated by one-step solvothermal method, for enhanced photocatalytic CO ₂ reduction with H ₂ O to solar fuels has been investigated. The structure and properties of the catalysts were characterized by XRD, FESEM, TEM, BET, UV–vis, Raman and PL spectroscopy. The hierarchical ZnV ₂ O ₆ nanosheets show excellent performance towards photoreduction of CO ₂ with H ₂ O to CH ₃ OH, CH ₃ COOH and HCOOH under visible light. The main product yield, CH ₃ OH of 3253.84 μmol g-cat ⁻¹ was obtained over ZnV ₂ O ₆ , 3.4 times the amount of CH ₃ OH produced over the ZnO/V ₂ O ₅ composite (945.28 μmol g-cat ⁻¹ ). In addition, CH ₃ OH selectivity of 39.96% achieved over ZnO/V ₂ O ₅ , increased to 48.78% in ZnV ₂ O ₆ nanosheets. This significant improvement in photo-activity over ZnV ₂ O ₆ structure was due to hierarchical structure with enhanced charge separation by V ₂ O ₅ . The obtained ZnV ₂ O ₆ hierarchical nanosheets exhibited excellent photocatalytic stability for selective CH ₃ OH production.

Original language	English
Pages (from-to)	953-962
Number of pages	10
Journal	Applied Surface Science
Volume	435
DOIs	https://doi.org/10.1016/j.apsusc.2017.11.116
State	Published - 30 Mar 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

CO reduction
Methanol
Nanosheets
Visible light
ZnO-V O
ZnV O

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.apsusc.2017.11.116

Cite this

Bafaqeer, A., Tahir, M., & Amin, N. A. S. (2018). Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels Applied Surface Science, 435, 953-962. https://doi.org/10.1016/j.apsusc.2017.11.116

Bafaqeer, Abdullah ; Tahir, Muhammad ; Amin, Nor Aishah Saidina. / Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels In: Applied Surface Science. 2018 ; Vol. 435. pp. 953-962.

@article{387f6776746849609cca9643dd3bdb8f,

title = " Synthesis of hierarchical ZnV 2 O 6 nanosheets with enhanced activity and stability for visible light driven CO 2 reduction to solar fuels ",

abstract = " Hierarchical nanostructures have lately garnered enormous attention because of their remarkable performances in energy storage and catalysis applications. In this study, novel hierarchical ZnV 2 O 6 nanosheets, formulated by one-step solvothermal method, for enhanced photocatalytic CO 2 reduction with H 2 O to solar fuels has been investigated. The structure and properties of the catalysts were characterized by XRD, FESEM, TEM, BET, UV–vis, Raman and PL spectroscopy. The hierarchical ZnV 2 O 6 nanosheets show excellent performance towards photoreduction of CO 2 with H 2 O to CH 3 OH, CH 3 COOH and HCOOH under visible light. The main product yield, CH 3 OH of 3253.84 μmol g-cat −1 was obtained over ZnV 2 O 6 , 3.4 times the amount of CH 3 OH produced over the ZnO/V 2 O 5 composite (945.28 μmol g-cat −1 ). In addition, CH 3 OH selectivity of 39.96% achieved over ZnO/V 2 O 5 , increased to 48.78% in ZnV 2 O 6 nanosheets. This significant improvement in photo-activity over ZnV 2 O 6 structure was due to hierarchical structure with enhanced charge separation by V 2 O 5 . The obtained ZnV 2 O 6 hierarchical nanosheets exhibited excellent photocatalytic stability for selective CH 3 OH production.",

keywords = "CO reduction, Methanol, Nanosheets, Visible light, ZnO-V O, ZnV O",

author = "Abdullah Bafaqeer and Muhammad Tahir and Amin, {Nor Aishah Saidina}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

day = "30",

doi = "10.1016/j.apsusc.2017.11.116",

language = "English",

volume = "435",

pages = "953--962",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

Bafaqeer, A, Tahir, M & Amin, NAS 2018, ' Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels ', Applied Surface Science, vol. 435, pp. 953-962. https://doi.org/10.1016/j.apsusc.2017.11.116

Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels . / Bafaqeer, Abdullah; Tahir, Muhammad; Amin, Nor Aishah Saidina.
In: Applied Surface Science, Vol. 435, 30.03.2018, p. 953-962.

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

TY - JOUR

T1 - Synthesis of hierarchical ZnV 2 O 6 nanosheets with enhanced activity and stability for visible light driven CO 2 reduction to solar fuels

AU - Bafaqeer, Abdullah

AU - Tahir, Muhammad

AU - Amin, Nor Aishah Saidina

PY - 2018/3/30

Y1 - 2018/3/30

N2 - Hierarchical nanostructures have lately garnered enormous attention because of their remarkable performances in energy storage and catalysis applications. In this study, novel hierarchical ZnV 2 O 6 nanosheets, formulated by one-step solvothermal method, for enhanced photocatalytic CO 2 reduction with H 2 O to solar fuels has been investigated. The structure and properties of the catalysts were characterized by XRD, FESEM, TEM, BET, UV–vis, Raman and PL spectroscopy. The hierarchical ZnV 2 O 6 nanosheets show excellent performance towards photoreduction of CO 2 with H 2 O to CH 3 OH, CH 3 COOH and HCOOH under visible light. The main product yield, CH 3 OH of 3253.84 μmol g-cat −1 was obtained over ZnV 2 O 6 , 3.4 times the amount of CH 3 OH produced over the ZnO/V 2 O 5 composite (945.28 μmol g-cat −1 ). In addition, CH 3 OH selectivity of 39.96% achieved over ZnO/V 2 O 5 , increased to 48.78% in ZnV 2 O 6 nanosheets. This significant improvement in photo-activity over ZnV 2 O 6 structure was due to hierarchical structure with enhanced charge separation by V 2 O 5 . The obtained ZnV 2 O 6 hierarchical nanosheets exhibited excellent photocatalytic stability for selective CH 3 OH production.

AB - Hierarchical nanostructures have lately garnered enormous attention because of their remarkable performances in energy storage and catalysis applications. In this study, novel hierarchical ZnV 2 O 6 nanosheets, formulated by one-step solvothermal method, for enhanced photocatalytic CO 2 reduction with H 2 O to solar fuels has been investigated. The structure and properties of the catalysts were characterized by XRD, FESEM, TEM, BET, UV–vis, Raman and PL spectroscopy. The hierarchical ZnV 2 O 6 nanosheets show excellent performance towards photoreduction of CO 2 with H 2 O to CH 3 OH, CH 3 COOH and HCOOH under visible light. The main product yield, CH 3 OH of 3253.84 μmol g-cat −1 was obtained over ZnV 2 O 6 , 3.4 times the amount of CH 3 OH produced over the ZnO/V 2 O 5 composite (945.28 μmol g-cat −1 ). In addition, CH 3 OH selectivity of 39.96% achieved over ZnO/V 2 O 5 , increased to 48.78% in ZnV 2 O 6 nanosheets. This significant improvement in photo-activity over ZnV 2 O 6 structure was due to hierarchical structure with enhanced charge separation by V 2 O 5 . The obtained ZnV 2 O 6 hierarchical nanosheets exhibited excellent photocatalytic stability for selective CH 3 OH production.

KW - CO reduction

KW - Methanol

KW - Nanosheets

KW - Visible light

KW - ZnO-V O

KW - ZnV O

UR - http://www.scopus.com/inward/record.url?scp=85035044503&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2017.11.116

DO - 10.1016/j.apsusc.2017.11.116

M3 - Article

AN - SCOPUS:85035044503

SN - 0169-4332

VL - 435

SP - 953

EP - 962

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Bafaqeer A, Tahir M, Amin NAS. Synthesis of hierarchical ZnV ₂ O ₆ nanosheets with enhanced activity and stability for visible light driven CO ₂ reduction to solar fuels Applied Surface Science. 2018 Mar 30;435:953-962. doi: 10.1016/j.apsusc.2017.11.116

Synthesis of hierarchical ZnV 2 O 6 nanosheets with enhanced activity and stability for visible light driven CO 2 reduction to solar fuels