High crystallinity and conjugation promote the polarization degree in O-doped g-C3N4 for removing organic pollutants. - Bai, Xiaojuan; Wang, Xuyu; Lu, Xiongwei; Hou, Shanshan; Sun, Boxuan; Wang, Cong; Jia, Tianqi; Yang, Shengqi (CrystEngComm, 2021)