Ag2Se complex nanostructures with photocatalytic activity and superhydrophobicity

被引：56

作者：

Cao, Huaqiang ^{[1
]}

Xiao, Yujiang ^{[1
,2
]}

Lu, Yuexiang ^{[1
]}

Yin, Jiefu ^{[1
]}

Li, Baojun ^{[1
]}

Wu, Shuisheng ^{[1
,3
]}

Wu, Xiaoming ^{[1
,4
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China

[3] Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China

[4] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

NANO RESEARCH | 2010年 / 3卷 / 12期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Nanostructures; photocatalytic; photoluminescence; superhydrophobicity; silver selenide; RHODAMINE-B; FABRICATION; SURFACES; PHOTODEGRADATION; TEMPLATE; NANOPARTICLES; NANOMATERIALS; NANOCRYSTALS; DEGRADATION; NANOWIRES;

D O I：

10.1007/s12274-010-0057-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：863 / 873

页数：11

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