Ag2Se complex nanostructures with photocatalytic activity and superhydrophobicity

作者：Cao, Huaqiang^*; Xiao, Yujiang; Lu, Yuexiang; Yin, Jiefu; Li, Baojun; Wu, Shuisheng; Wu, Xiaoming

来源：Nano Research, 2010, 3(12): 863-873.

DOI：10.1007/s12274-010-0057-x

• Nanostructures
• photocatalytic
• photoluminescence
• superhydrophobicity
• silver selenide

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.

• 出版日期2010-12
• 单位南京大学; 湖南大学; 清华大学; 中南大学