Diffused sunlight driven highly synergistic pathway for complete mineralization of organic contaminants using reduced graphene oxide supported photocatalyst
Sundaram Ganesh Babu, Ramalingam Vinoth, Bernaurdshaw Neppolian, Dionysios D Dionysiou, Muthupandian Ashokkumar
JOURNAL OF HAZARDOUS MATERIALS | ELSEVIER | Published : 2015
Diffused sunlight is found to be an effective light source for the efficient degradation and mineralization of organic pollutant (methyl orange as a probe) by sono-photocatalytic degradation using reduced graphene oxide (rGO) supported CuO-TiO2 photocatalyst. The prepared catalysts are characterized by XRD, XPS, UV-vis DRS, PL, photoelectrochemical, SEM-EDS and TEM. A 10 fold synergy is achieved for the first time by combining sonochemical and photocatalytic degradation under diffused sunlight. rGO loading augments the activity of bare CuO-TiO2 more than two fold. The ability of rGO in storing, transferring, and shuttling electrons at the heterojunction between TiO2 and CuO facilitates the s..View full abstract
Awarded by SERB
We acknowledge financial support from the SERB (SR/FT/CS-127/2011), DST, New Delhi, India. We also acknowledge Prof. Ick Soo Kim (Division of Frontier Fibers, Institute for Fiber Engineering (IFES), National Shinshu University, Ueda, Japan) for TEM and XPS analysis.