University of Oulu

Xu–Teng Yu, Heng–Xin Liu, Yanhua Shen, Jian–Ying Xu, Feng–Ying Cai, Taohai Li, Jian Lü, Wei Cao, Microwave–assisted synthesis of nanoscale tungsten trioxide hydrate with excellent photocatalytic activity under visible irradiation, Inorganic Chemistry Communications, Volume 120, 2020, 108147, ISSN 1387-7003, https://doi.org/10.1016/j.inoche.2020.108147

Microwave–assisted synthesis of nanoscale tungsten trioxide hydrate with excellent photocatalytic activity under visible irradiation

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Author: Yu, Xu–Teng1; Liu, Heng–Xin1; Shen, Yanhua2;
Organizations: 1Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
2College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan 411105, PR China
3Nano and Molecular Systems Research Unit, Faculty of Science, P. O. Box 3000, University of Oulu, FIN 90014, Finland
4Samara Center for Theoretical Materials Science (SCTMS), Samara State Technical University, Samara 443100, Russia
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe202102255967
Language: English
Published: Elsevier, 2020
Publish Date: 2022-07-27
Description:

Abstract

Tungsten trioxide hydrate (WO₃⋅1/3H₂O) nanoparticles (NPs) were prepared via a microwave–assisted synthetic pathway by using Na₂WO₄·2H₂O and PdCl₂ as precursors. Microstructure and morphology of as–prepared WO₃⋅1/3H₂O NPs were investigated through X–ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared (FT–IR) spectra, while porosity and bandgap through specific surface area and UV–vis absorption spectroscopy. It was found that Pd²⁺ ions played a crucial role in the formation of WO₃⋅1/3H₂O NPs, and thus a possible formation mechanism was proposed based on the growth processes. The photocatalytic property of WO₃⋅1/3H₂O NPs was evaluated on the basis of Rhodamine B (RhB) degradation in aqueous solutions under simulated visible irradiation. Photocatalytic experimental results indicated that as–prepared WO₃⋅1/3H₂O NPs exhibited much more superior photocatalytic activity by contrast to that of the commercial WO₃.

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Series: Inorganic chemistry communications
ISSN: 1387-7003
ISSN-E: 1879-0259
ISSN-L: 1387-7003
Volume: 120
Article number: 108147
DOI: 10.1016/j.inoche.2020.108147
OADOI: https://oadoi.org/10.1016/j.inoche.2020.108147
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
Subjects:
Funding: The authors acknowledge with thanks the financial support of the National Natural Science Foundation of China (grant no. 21601149), the International Science and Technology Cooperation and Exchange Project of Fujian Agriculture and Forestry University (grant no. KXGH17010), the Scientific Research Fund of Hunan Provincial Education Department (grant no. 16B253), the Open Project Program of State Key Laboratory of Structural Chemistry, China (grant no. 20150018 and 20170032), the Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization, and the Oulu University Strategic Grant. T. L. acknowledges Oulu University Short–term International Research Visit grant during his stay in Finland.
Copyright information: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
  https://creativecommons.org/licenses/by-nc-nd/4.0/