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Controllable synthesis of SrCO3 with different morphologies and their co-catalytic activities for photocatalytic oxidation of hydrocarbon gases over TiO2

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Abstract

The controlled synthesis of strontium carbonate (SrCO3) micro-/nanostructures with various morphologies, such as sphere, pompon, arborization, spindle, and hexagonal prism, are successfully achieved through rather facile hydrothermal processes. The morphology of SrCO3 can be elegantly adjusted by employing different CO3 2− sources and controlling the viscidity of the organic solvents. The underlying mechanism of morphology evolution is discussed. Moreover, the SrCO3-loaded TiO2 (SrCO3/TiO2) nanocomposites are shown to improve the activity for oxidizing hydrocarbon gases under simulated solar light irradiation. The 5.0 wt% SrCO3 (nanosphere)/TiO2 exhibited the highest performance toward the oxidation of the hydrocarbons gases, and its activity on methane oxidation is more than double that of P25 TiO2. These results are valuable for both carbonate synthesis and their use in the oxidation of hydrocarbons gases.

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Acknowledgements

This work was financially supported by the National Key Project on Basic Research (Grant No. 2013CB933203), the National Natural Science Foundation of China (Grant Nos. 21373224, 21577143, 21377044 and 51502289), and the Natural Science Foundation of Fujian Province (Grant Nos. 2014H0054 and 2015J05044).

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Authors and Affiliations

  1. Institute of Nanoscience and Nanotechnology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China

    Wei Zhang & Ying Yu

  2. Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China

    Wei Zhang & Zhiguo Yi

Authors
  1. Wei Zhang
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  2. Ying Yu
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  3. Zhiguo Yi
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Correspondence to Ying Yu or Zhiguo Yi.

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Zhang, W., Yu, Y. & Yi, Z. Controllable synthesis of SrCO3 with different morphologies and their co-catalytic activities for photocatalytic oxidation of hydrocarbon gases over TiO2 . J Mater Sci 52, 5106–5116 (2017). https://doi.org/10.1007/s10853-017-0748-8

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  • DOI: https://doi.org/10.1007/s10853-017-0748-8

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