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Nano Research 2023, 16(2): 2133-2141 https://doi.org/10.1007/s12274-022-4946-6
Research Article | Issue | Published: 07 October 2022

A novel Cu1.5Mn1.5O4 photothermal catalyst with boosted surface lattice oxygen activation for efficiently photothermal mineralization of toluene

Show Author's Information Qiang Cheng,  Zhuangzhuang Wang,  Xiaotian Wang,  Jiaming Li,  Yuan Li,  Gaoke Zhang( )
Shenzhen Research Institute, Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
Keywords:
photothermal catalysis, volatile organic compounds, light-driven, Cu1.5Mn1.5O4 nanomaterial, surface lattice oxygen
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Cite this article:
Cheng Q, Wang Z, Wang X, et al. A novel Cu1.5Mn1.5O4 photothermal catalyst with boosted surface lattice oxygen activation for efficiently photothermal mineralization of toluene. Nano Research, 2023, 16(2): 2133-2141. https://doi.org/10.1007/s12274-022-4946-6
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Abstract Full text Electronic supplementary material About this article

Developing a novel photothermal catalyst for efficient mineralization of volatile organic compounds (VOCs) is of great significance to control air pollution. Herein, for the first-time, a spinel Cu1.5Mn1.5O4 nanomaterial with enhanced surface lattice oxygen activation was successfully obtained by a novel light-driven in situ reconstruction strategy from its precursor (CuMnO2) for efficient toluene mineralization. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) analyses confirm that the CuMnO2 phase was converted into spinel Cu1.5Mn1.5O4 phase under full spectrum light irradiation. Ultraviolet–visible–near infrared ray (UV–vis–NIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) analysis, and density functional theory (DFT) calculations determine that the strong near-infrared absorption ability and low dissociation energy of oxygen bond in Cu1.5Mn1.5O4 are beneficial to its surface lattice oxygen activation. Furthermore, O2-temperature programmed desorption (TPD) and in situ diffuse reflectance infrared transform spectroscopy (DRIFTS) further indicate that the surface lattice oxygen of the Cu1.5Mn1.5O4 is easily activated under light irradiation, which can promote ring opening of toluene. This research endows a new design of photothermal nanomaterial with enhanced lattice oxygen activation for deep oxidation of VOCs.


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About this article

A novel Cu1.5Mn1.5O4 photothermal catalyst with boosted surface lattice oxygen activation for efficiently photothermal mineralization of toluene

Show Author's information Qiang Cheng, Zhuangzhuang Wang, Xiaotian Wang, Jiaming Li, Yuan Li, Gaoke Zhang( )
Shenzhen Research Institute, Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China

Abstract

Developing a novel photothermal catalyst for efficient mineralization of volatile organic compounds (VOCs) is of great significance to control air pollution. Herein, for the first-time, a spinel Cu1.5Mn1.5O4 nanomaterial with enhanced surface lattice oxygen activation was successfully obtained by a novel light-driven in situ reconstruction strategy from its precursor (CuMnO2) for efficient toluene mineralization. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) analyses confirm that the CuMnO2 phase was converted into spinel Cu1.5Mn1.5O4 phase under full spectrum light irradiation. Ultraviolet–visible–near infrared ray (UV–vis–NIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) analysis, and density functional theory (DFT) calculations determine that the strong near-infrared absorption ability and low dissociation energy of oxygen bond in Cu1.5Mn1.5O4 are beneficial to its surface lattice oxygen activation. Furthermore, O2-temperature programmed desorption (TPD) and in situ diffuse reflectance infrared transform spectroscopy (DRIFTS) further indicate that the surface lattice oxygen of the Cu1.5Mn1.5O4 is easily activated under light irradiation, which can promote ring opening of toluene. This research endows a new design of photothermal nanomaterial with enhanced lattice oxygen activation for deep oxidation of VOCs.

Keywords: photothermal catalysis, volatile organic compounds, light-driven, Cu1.5Mn1.5O4 nanomaterial, surface lattice oxygen

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Publication history
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Acknowledgements

Publication history

Received: 01 June 2022
Revised: 21 August 2022
Accepted: 22 August 2022
Published: 07 October 2022
Issue date: February 2023

Copyright

© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

The study was supported by Science and Technology Planning Project of Shenzhen Municipality (No. JCYJ20200109150225155) and the National Natural Science Foundation of China (NSFC, No. 92163125).

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