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Synthesis of bulk BaTiO3 aerogel and characterization of photocatalytic properties

  • Original Paper: Nano- and macroporous materials (aerogels, xerogels, cryogels, etc.)
  • Published:
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Abstract

BaTiO3 aerogels with a photocatalytic property were synthesized from metal barium via nanoparticle assembly method combined with ethanol supercritical drying technology. The specific surface area of the BaTiO3 aerogel could reach up to 233.24 m2/g, and the average pore size and total pore volume were 26.1 nm and 3.50 cm3/g, respectively. The sample showed excellent adsorption capacity and photocatalytic performance for 10 mg/L methyl orange solution (pH = 3), and the degradation rate reached up to 92.59% in 2 h, which was superior to BaTiO3 nanopowder. Moreover, the photodegradation rate was still about 80% after five-cycle experiments.

(a) Photograph of sample, (b) SEM image, (c) nitrogen adsorption/desorption isotherms with pore size distribution curve and (d) photocatalysis performance test of BaTiO3 aerogels

Highlights

  • The bulk BaTiO3 aerogel is synthesized via nanoparticle assembly method without heat treatment.

  • The specific surface area of the BaTiO3 aerogel can reach up to 233.24 m2/g.

  • When the volume ratio of ethanol/water is 2:1, the BaTiO3 aerogel exhibits an outstanding photodegradation performance that 92.59% methyl orange (MO) can be removed in 2 h.

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Acknowledgements

This work was financially supported by the Program for Changjiang Scholars and Innovation Research Team in University (No. IRT_15R35), the National Natural Science Foundation of China (51702156), the Natural Science Foundation of Jiangsu Province (BK20161002), the Industry Program of Science and Technology Support Project of Jiangsu Province (BE2016171, BE2017151), the Postgraduate Research and Practice Innovation Program of Jiangsu Province (SJLX_0296), Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). Any opinions, findings and conclusions, or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of those programs.

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Authors and Affiliations

  1. Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, 210009, P.R. China

    Yanhan Li, Jun Wu, Xiaodong Wu, Hao Suo, Xiaodong Shen & Sheng Cui

  2. Department of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, P.R. China

    Yanhan Li, Jun Wu, Xiaodong Wu, Hao Suo, Xiaodong Shen & Sheng Cui

  3. Advanced Materials Institute of Nanjing Tech university in Suqian, Suqian, 223800, China

    Xiaodong Shen & Sheng Cui

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  1. Yanhan Li
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  2. Jun Wu
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  3. Xiaodong Wu
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Correspondence to Xiaodong Shen or Sheng Cui.

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Li, Y., Wu, J., Wu, X. et al. Synthesis of bulk BaTiO3 aerogel and characterization of photocatalytic properties. J Sol-Gel Sci Technol 90, 313–322 (2019). https://doi.org/10.1007/s10971-019-04948-x

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  • DOI: https://doi.org/10.1007/s10971-019-04948-x

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