Preparation of nano-TiO2 composite photocatalytic material and its degradation performance on aldehydesYanan Lv, Tao Li, Honglei Zhao, Xuepeng Li, Ying Bu and Yongxia XuE3S Web Conf., 213 (2020) 01009DOI: https://doi.org/10.1051/e3sconf/202021301009