Study on Photocatalytic Degradation of Pollutants by Zinc Oxide Nanocomposites Yuanyuan Du, Xinjun Li, Ying Fu, Xing Gao, Wen He, Li Han, Weijuan Gong and Pengwu Zheng E3S Web Conf., 290 (2021) 03017 Published online: 14 July 2021 DOI: 10.1051/e3sconf/202129003017