Solar-driven Photocatalytic Activity of ZnO/Carbon/g-C3N4 Nanofibers
Volume Title: 1
Authors
1Physics Department, Sharif University of Technology, Tehran, Iran
2Physics deparment, Sharif University of Technolgy, Tehran, Iran
3Chemistry department, Sharif University of Technolgy, Tehran, Iran
4NUS Centre for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117583, Singapore
5Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran
Abstract
Photocatalysis is an efficient and scalable method for water treatment and environmental remediation. In this research, nanocomposites of the ZnO/Carbon with exfoliated g-C3N4 nanosheets were prepared through electrospinning and have been used as photocatalyst for degradation of dye pollutant. In these nanocomposites, the presence of carbon species and also oxygen vacancies were confirmed by X-ray photoemission spectroscopy (XPS). Owing to the presence of these two agents the composite nanofibers showed enhanced sunlight absorption. At last, retardation in electron-hole recombination rate caused by the existance of g-C3N4 nanosheets resuted in improved photocatalytic activity of the ZnO/Carbon/g-C3N4 nanocomposites through the Z-scheme mechanism.
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