Functionalized Graphene Derivatives and TiO2 for High Visible Light Photodegradation of Azo Dyes.

ABSTRACT: Functionalized graphene derivatives including graphene oxide (GO), reduced graphene oxide (rGO), and heteroatom (nitrogen/sulphur (N/S) or boron (B))-doped graphene were used to synthesize composites with TiO2 (T). The photocatalytic performance of composites was assessed for the degradation of Orange G dye (OG) under simulated solar light. All the prepared graphene derivatives-TiO2 composites showed better photocatalytic performance than bare TiO2. A higher photocatalytic activity was found for the composites containing GO and N/S co-doped rGO (kapp = 109.2 × 10-3 and 48.4 × 10-3 min-1, for GO-T and rGONS-T, respectively). The influence of both initial solution pH and the reactive species involved in the OG degradation pathway were studied. The photocatalytic activity of the samples decre

SUBMITTER: Perez-Molina A 

PROVIDER: S-EPMC7353273 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature