Abstract
In this work, a novel bimetallic ternary composite (AuCu-P25-rGO) had been designed and prepared, and been used as a high-performance photocatalyst. The morphology, chemical composition, physical structure and photoelectric property were confirmed by XRD, TEM, BET analysis, FT-IR, Raman, XPS, UV-vis DRS, Photoluminscence spectra and transient photocurrent responses techniques. The photocatalysts possessed higher catalytic activity than P25, P25-rGO, AuCu-P25, Cu-P25-rGO, Au-P25-rGO for photodegradation of organic pollutant (2-nitrophenol) under UV–vis light. Importantly, the molar ratio of Au:Cu exhibited significant influence on the photocatalytic property, and AuCu-P25-rGO with Au/Cu molar ratio=1:1 showed higher activity than these with Au/Cu molar ratio=1:3 and 3:1. In addition, Au1Cu1-P25-rGO could excellently photodegradation of organic dyes (Rhodamine B and methylene blue). The enhanced photocatalytic performance of AuCu-P25-rGO composites can be attributed to three reasons as follows: (1) surface plasmon resonance (SPR) effect of AuCu bimetallic nanoparticles; (2) outstanding conductivity and adsorptivity of rGO; (3) the polymorphs junction formed by mixture of anatase and rutile of P25.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
