Photocatalytic reduction of Cr(VI) over different TiO_2 photocatalysts and the effects of dissolved organic species

摘要

The toxic Cr(Ⅵ) in industrial wastewaters can be removed by a reduction from Cr(Ⅵ) to Cr(Ⅲ) and a followed precipitation treatment. The reduction of Cr(Ⅵ) to Cr(Ⅲ) is able to be achieved by a photocatalytic process. Thus, photocatalytic reduction of Cr(Ⅵ)