Arsenic pollution control of wastewater is still a difficult problem in environmental governance. In this paper, a bifunctional p-n heterojunction for removing As(III) has been constructed by FeOOH modifying carbon-doped TiO2, which can achieve highly efficient photocatalytic oxidation of As(III) and synchronous adsorption of the generated As(V). Furthermore, the Fe3O4 cores were wrapped by the p-n heterojunction (FeOOH@C/TiO2@Fe3O4) to realize the recycling of photocatalysts through magnetic separation. A series of characterizations showed tha...
