Three-dimensional reduced graphene Oxide/BiOI aerogels for photocatalysis degradation of water pollutants

PUIG, JULIETA; DE CASTRO-ALVES, LISANDRA; YÁÑEZ-VILAR, S; PIÑEIRO REDONDO Y; HOPPE, CRISTINA E.; RIVAS J.

Santiago de Compostela

Encuentro; XXV Encontro Galego-Portugués de química; 2019

Water pollution is a global challenge that has gained increased considerable attentionnowadays [1].Graphene has recently attracted great attention due to its excellent optical, electrical,thermal and mechanical properties. Graphene has large surface area (2630 m2 g-1)along with high conductivity (3000 W m-1 K-1) that make it as a potential support forphotocatalysis [2].BiOX (bismuth oxyhalide; X=Cl, Br and I) compounds exhibit promising visible lightphotocatalytic performance due to their unique and excellent electrical, optical,magnetic, and photoluminescence properties [3].In this work, a three-dimensional reduced graphene oxide (rGO) aerogel isprepared by a simple in situ reduction of graphene oxide with ascorbic acid in presenceof BiOI nanoparticles The photocatalytic performance of the aerogel fordegradation of water pollutant is studied.[1] P. Singh, A. Sudhaik, P. Raizada, P. Shandilya, R. Sharma, A. Hosseini-Bandegharaei, Materials TodayChemistry, 12 (2019) 85.[2] N. Yousefi, M. Elimelech, X. Lu, N. Tufenkji, Nature nanotechnology, 1 (2019).[3] R. Vinoth, S. Ganesh Babu, R. Ramachandran, B. Neppolian, Applied Surface Science, 418 (2017) 163