Genc, Munevver Tuna.Yanalak, Gizem.Arslan, Gulsin.Patir, Imren Hatay.2020-03-262020-03-262020Genc, M. T., Yanalak, G., Arslan, G., Patir, I. H. (2020). Green Preparation of Carbon Quantum Dots Using Gingko Biloba to Sensitize TiO2 for the Photohydrogen Production. Materials Science in Semiconductor Processing, 109, 1-7.1369-80011873-4081https://dx.doi.org/10.1016/j.mssp.2020.104945https://hdl.handle.net/20.500.12395/38549Carbon Quantum dots (CQDs) were obtained from Gingko biloba by using microwave technique, which is easy, time-saving, cost-effective, non-toxic and environmental friendly way. TiO2 were sensitized by green-prepared CQDs to obtain CQDs/TiO2 composite. The characterizations of the CQDs and CQDs/TiO2 were performed by Transmission Electron Microscopy (TEM), high-resolution TEM (HR-TEM), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopic (XPS), Photoluminescence (PL) and Fourier Transformed Infrared (FT-IR) spectroscopy. The photocatalytic hydrogen evolution activity of CQDs/TiO2 system was studied under visible light (lambda > 420 nm) irradiation in the aqueous solution by using triethanolamine (TEOA) as a sacrificial electron donor. When Pt was used as a co-catalyst, CQDs/TiO2/Pt exhibited improved hydrogen evolution rate (1502 mu mol h(-1)g(-1)) compared to CQDs/TiO2 composite (665 mu mol h(-1)g(-1)).en10.1016/j.mssp.2020.104945info:eu-repo/semantics/openAccessCarbon quantum dotsPhotocatalytic hydrogen evolutionTiO2Gingko bilobaArticle109Q1WOS:000513161300026Q1