Structure and effective visible-light-driven photocatalytic activity of α-NiMoO4 for degradation of methylene blue dye

Li Yang; Jing Wang; Yingpeng Wan; Yuze Li; Hongde Xie; Han Cheng; Hyo Jin Seo

doi:10.1016/j.jallcom.2015.10.037

Structure and effective visible-light-driven photocatalytic activity of α-NiMoO₄ for degradation of methylene blue dye

Li Yang
, Jing Wang
, Yingpeng Wan
, Yuze Li
, Hongde Xie
, Han Cheng
, Hyo Jin Seo

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

53 Citations (Scopus)

Abstract

α-NiMoO₄ powders were prepared by the Pechini method. The sample was investigated by X-ray powder diffraction (XRD) measurement, structural refinement, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX). The average size of α-NiMoO₄ powders was measured to be 250 nm. The optical absorption spectrum of α-NiMoO₄ confirmed an efficient absorption in the UV-visible light wavelength region. The sample presents a narrowed band-gap energy of 2.23 eV, and the effective photocatalytic activity was evaluated by the photodegradation of methylene blue (MB). The effective photocatalytic activity was discussed on the base of the crystal structure characteristics such as heavily distorted NiO₆, activated optical centers and good electric conductivity. These results indicate that the hexagonal tunnel-structure alternately connected by MoO₄ and the heavily distorted NiO₆ is the dominated superiority for high photocatalytic capacity. © 2015 Published by Elsevier B.V.

Original language	English
Pages (from-to)	756-763
Journal	Journal of Alloys and Compounds
Volume	664
DOIs	https://doi.org/10.1016/j.jallcom.2015.10.037
Publication status	Published - 15 Apr 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning ( NRF-2013RA1A2009154 ) and by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China .

Research Keywords

Catalytic properties
Inorganic compounds
Optical properties
Pechini method
Semiconductors
X-ray diffraction

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@article{05d272dbcfff43cd92c3d7dfc54319e8,

title = "Structure and effective visible-light-driven photocatalytic activity of α-NiMoO4 for degradation of methylene blue dye",

abstract = "α-NiMoO4 powders were prepared by the Pechini method. The sample was investigated by X-ray powder diffraction (XRD) measurement, structural refinement, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX). The average size of α-NiMoO4 powders was measured to be 250 nm. The optical absorption spectrum of α-NiMoO4 confirmed an efficient absorption in the UV-visible light wavelength region. The sample presents a narrowed band-gap energy of 2.23 eV, and the effective photocatalytic activity was evaluated by the photodegradation of methylene blue (MB). The effective photocatalytic activity was discussed on the base of the crystal structure characteristics such as heavily distorted NiO6, activated optical centers and good electric conductivity. These results indicate that the hexagonal tunnel-structure alternately connected by MoO4 and the heavily distorted NiO6 is the dominated superiority for high photocatalytic capacity. {\textcopyright} 2015 Published by Elsevier B.V.",

keywords = "Catalytic properties, Inorganic compounds, Optical properties, Pechini method, Semiconductors, X-ray diffraction",

author = "Li Yang and Jing Wang and Yingpeng Wan and Yuze Li and Hongde Xie and Han Cheng and Seo, \{Hyo Jin\}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1016/j.jallcom.2015.10.037",

language = "English",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Structure and effective visible-light-driven photocatalytic activity of α-NiMoO4 for degradation of methylene blue dye

AU - Yang, Li

AU - Wang, Jing

AU - Wan, Yingpeng

AU - Li, Yuze

AU - Xie, Hongde

AU - Cheng, Han

AU - Seo, Hyo Jin

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/4/15

Y1 - 2016/4/15

N2 - α-NiMoO4 powders were prepared by the Pechini method. The sample was investigated by X-ray powder diffraction (XRD) measurement, structural refinement, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX). The average size of α-NiMoO4 powders was measured to be 250 nm. The optical absorption spectrum of α-NiMoO4 confirmed an efficient absorption in the UV-visible light wavelength region. The sample presents a narrowed band-gap energy of 2.23 eV, and the effective photocatalytic activity was evaluated by the photodegradation of methylene blue (MB). The effective photocatalytic activity was discussed on the base of the crystal structure characteristics such as heavily distorted NiO6, activated optical centers and good electric conductivity. These results indicate that the hexagonal tunnel-structure alternately connected by MoO4 and the heavily distorted NiO6 is the dominated superiority for high photocatalytic capacity. © 2015 Published by Elsevier B.V.

AB - α-NiMoO4 powders were prepared by the Pechini method. The sample was investigated by X-ray powder diffraction (XRD) measurement, structural refinement, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX). The average size of α-NiMoO4 powders was measured to be 250 nm. The optical absorption spectrum of α-NiMoO4 confirmed an efficient absorption in the UV-visible light wavelength region. The sample presents a narrowed band-gap energy of 2.23 eV, and the effective photocatalytic activity was evaluated by the photodegradation of methylene blue (MB). The effective photocatalytic activity was discussed on the base of the crystal structure characteristics such as heavily distorted NiO6, activated optical centers and good electric conductivity. These results indicate that the hexagonal tunnel-structure alternately connected by MoO4 and the heavily distorted NiO6 is the dominated superiority for high photocatalytic capacity. © 2015 Published by Elsevier B.V.

KW - Catalytic properties

KW - Inorganic compounds

KW - Optical properties

KW - Pechini method

KW - Semiconductors

KW - X-ray diffraction

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U2 - 10.1016/j.jallcom.2015.10.037

DO - 10.1016/j.jallcom.2015.10.037

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 664

SP - 756

EP - 763

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -