Charu Dwivedi and  V. Dutta,  Size Controlled Synthesis and Photocatalytic Activity of Anatase TiO2 Hollow Microspheres.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 566 - 568
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/2807.