Journal
NANOSCALE RESEARCH LETTERS
Volume 8, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/1556-276X-8-334
Keywords
Visible light photocatalytic; Water splitting; Cd1-xZnxS; Solvothermal pathway; Solid solutions
Funding
- National Major Basic Research Project of National 863 Program [2012CB934302, 2011AA050518]
- Natural Science Foundation of China [11174197, 61234005]
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Visible light accounts for about 43% of the solar spectrum, and developing highly efficient visible-light-driven photocatalyst is of special significance. In this work, highly efficient three-dimensional (3D) Cd1-x Zn (x) S photocatalysts for hydrogen generation under the irradiation of visible light were synthesized via one-step solvothermal pathway. Scanning electron microscope, X-ray diffractometer, Raman spectrometer, and X-ray photoelectron spectrometer were utilized to characterize the morphology, crystal structure, vibrational states, and surface composition of the obtained 3D Cd1-x Zn (x) S. UV-Vis spectra indicated that the as-synthesized Cd1-x Zn (x) S had appropriate bandgap and position of the conduction band that is beneficial for visible light absorption and photo-generated electron-hole pair separation. Moreover, the 3D structure offers a larger surface area thus supplying more surface reaction sites and better charge transport environment, and therefore, the efficiency of water splitting was improved further.
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