Tang, Yongkang, Yin Liu, Zhiping Gan, Liyun Ma, Jianping Zhu, Baoxiang Jiao, and Guihua Hou. 2014. “Preparation and Photocatalytic Performance Study of TiO2 Coating on Cenospheres”. Asian Journal of Chemistry 26 (6):1615-18. https://doi.org/10.14233/ajchem.2014.17302.