Synthesis of faceted and cubic Ag2S nanocrystals in aqueous solutions

被引：53

作者：

Dong, Lihong ^{[1
,2
]}

Chu, Ying ^{[1
]}

Liu, Yang ^{[1
]}

Li, Lili ^{[1
]}

机构：

[1] NE Normal Univ, Dept Chem, Changchun 130024, Peoples R China

[2] Tonghua Normal Coll, Dept Chem, Tonghua 134002, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 317卷 / 02期

关键词：

Ag2S; faceted and cubic nanocrystals; thiourea; CTAB; cooperation effect;

D O I：

10.1016/j.jcis.2007.09.055

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：

With thiourea (Tu) as sulfur source and the assistance of CTAB, faceted and cubic Ag2S nanocrystals have been synthesized successfully via a simple hydrothermal route by modulating the ratio of Tu and AgNO3, respectively. It is the first report that the fabrication of faceted and cubic Ag2S nanocrystals takes place in aqueous medium, which makes the synthesis environmentally benign, user-friendly, economical and practicable to industry production. It is also found that the cooperation effect of CTAB and Tu should be responsible for the formation of the as-obtained Ag2S nanocrystals. The UV-vis absorption spectrum of the products shows obvious blue shift. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：485 / 492

页数：8

共 50 条

[1] Preparation and characterization of polymer thin films containing silver and silver sulfide nanoparticles [J].

Akamatsu, K ;

Takei, S ;

Mizuhata, M ;

Kajinami, A ;

Deki, S ;

Takeoka, S ;

Fujii, M ;

Hayashi, S ;

Yamamoto, K .

THIN SOLID FILMS, 2000, 359 (01) :55-60

[2] DIFFUSION OF SILVER IN SILVER SULFIDE [J].

ALLEN, RL ;

MOORE, WJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1959, 63 (02) :223-226

[3] Synthesis and ultrafast study of cysteine- and glutathione-capped Ag2S semiconductor colloidal nanoparticles [J].

Brelle, MC ;

Zhang, JZ ;

Nguyen, L ;

Mehra, RK .

JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103 (49) :10194-10201

[4] Luminescent silver sulfide clusters [J].

Brühwiler, D ;

Leiggener, C ;

Glaus, S ;

Calzaferri, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (15) :3770-3777

[5]

Brühwiler D, 1999, J PHYS CHEM B, V103, P6397, DOI 10.1021/jp990498vCCC:$18.00

[6] DIFFUSE-X-RAY-SCATTERING STUDY OF THE FAST-ION CONDUCTOR BETA-AG2S [J].

CAVA, RJ ;

MCWHAN, DB .

PHYSICAL REVIEW LETTERS, 1980, 45 (25) :2046-2050

[7]

DERYCKE GL, 1990, Patent No. 89202613

[8] Surfactant-assisted fabrication PbS nanorods, nanobelts, nanovelvet-flowers and dendritic nanostructures at lower temperature in aqueous solution [J].

Dong, Lihong ;

Chu, Ying ;

Liu, Yang ;

Li, Meiye ;

Yang, Fuyong ;

Li, Lili .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 301 (02) :503-510

[9]

Faraday M., 1833, Phil. Trans. R. Soc. Lond, V123, P23, DOI DOI 10.1098/RSTL.1833.0022

[10] Controllable assembly of ordered semiconductor Ag2S nanostructures [J].

Gao, F ;

Lu, QY ;

Zhao, DY .

NANO LETTERS, 2003, 3 (01) :85-88

← 1 2 3 4 5 →