Journal
NANO RESEARCH
Volume 3, Issue 12, Pages 863-873Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-010-0057-x
Keywords
Nanostructures; photocatalytic; photoluminescence; superhydrophobicity; silver selenide
Categories
Funding
- National Natural Science Foundation of China [20921001, 20535020]
- Innovation Method Fund of China [20081885189]
- National High Technology Research and Development Program of China [2009AA03Z321]
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Single-crystalline Ag2Se complex nanostructures have been synthesized via a solvothermal route in which selenophene (C4H4Se) as a selenylation source reacts with AgNO3 at a temperature of 240 A degrees C. An orthorhombic phase beta-Ag2Se nanostructure was identified by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HRTEM), and photoluminescence (PL) spectroscopy. The wettability of the as-synthesized beta-Ag2Se nanostructure was studied by measurement of the water contact angle (CA). Static water CA values of over 150A degrees were obtained, which can be attributed to the beta-Ag2Se complex nanostructure having a combination of micro- and nanostructures. The superhydrophobic Ag2Se nanostructure may find applications in self-cleaning. Additionally, the photocatalytic activity of the as-synthesized beta-Ag2Se nanostructure was evaluated by photodegradation of rhodamine B (RhB) dye under ultraviolet (UV) light irradiation.
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