Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

  • Haojie Song
  • Shengsheng You
  • Tao Chen
  • Xiaohua Jia


TiO2 hollow microspheres were successfully synthesized via a controlled hydrolysis reaction, which involved the deposition of an inorganic coating of TiO2 on the surface of carbon spheres and subsequent removal of carbon spheres by calcination in air. The as-prepared TiO2 hollow microspheres with an average diameter of 200 nm presented a novel morphology, which was constructed by closely crosslinked TiO2 nanochains. The morphology of the hollow sphere can be controlled by varying the concentration of TiCl3 solution. A possible formation mechanism was also proposed. The photo-degradation of rhodamine B (RhB) aqueous solution showed that TiO2 hollow microspheres exhibited higher photocatalytic activity than that of TiO2 nanoparticles. The enhanced photocatalytic activity of the as-prepared TiO2 microspheres here could result from their hollow structures assembled by TiO2 nanochains and large light-harvesting efficiency.


TiO2 Photocatalytic Activity TiO2 Nanoparticles Hollow Sphere Hollow Microsphere 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work is supported by the National Natural Science Foundation of China (No. 51372103, and 51202092), the special grade of the financial support from China Postdoctoral Science Foundation (2014T70485), the China Postdoctoral Science Foundation (2013M531285).


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Haojie Song
    • 1
  • Shengsheng You
    • 1
  • Tao Chen
    • 1
  • Xiaohua Jia
    • 2
  1. 1.Institute of Polymer Materials, School of Materials Science and EngineeringJiangsu UniversityZhenjiangPeople’s Republic of China
  2. 2.School of Environment and Safety EngineeringJiangsu UniversityZhenjiangPeople’s Republic of China

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