公开(公告)号：US20190015818A1

公开(公告)日：2019-01-17

申请号：US16034750

申请日：2018-07-13

申请人： BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS

发明人： Anindya GHOSH ,  Bijay P. CHHETRI

IPC分类号： B01J21/18 ,  B01J35/00 ,  B01J23/06 ,  B01J21/06 ,  B01J23/755 ,  B01J23/72 ,  B01J23/75 ,  B01J23/30 ,  B01J23/22 ,  B01J23/745 ,  B01J23/46 ,  B01J23/36 ,  B01J23/28 ,  B01J23/26 ,  B01J23/14 ,  B01J23/10 ,  B01J27/043 ,  B01J27/04 ,  B01J27/047 ,  B01J27/051 ,  B01J31/22 ,  B01J31/18 ,  B01J37/08 ,  C02F1/32 ,  C02F1/72

摘要： A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.