Template-free synthesis of CdS microspheres composed of nanocrystals with a new sulfur source

被引：15

作者：

Nagaraja, C. M. ^{[1
]}

Kaur, Manjodh ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Rupnagar 140001, Punjab, India

来源：

MATERIALS LETTERS | 2013年 / 111卷

关键词：

CdS; Semiconductor; Nanoparticles; Solvothermal method; Photocatalysis;

D O I：

10.1016/j.matlet.2013.08.095

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cadmium sulfide (CdS) microspheres composed of CdS nanocrystals were synthesized by a one-pot solvothermal method using a new in situ S2- source and without the use of any template or capping agent. The powder X-ray diffraction measurements revealed the cubic structure of the CdS microspheres. SEM analyses indicated that the CdS microspheres are further composed with assembled CdS nanocrystals. TEM analyses revealed the crystallites size of about 15-20 nm. Optical investigation showed that the obtained CdS microspheres have an UV-vis absorption at 420 nm which is blue-shifted compared to that of bulk CdS and the calculated band gap value is 2.52 eV. Photocatalytic investigation of the CdS microspheres showed good photocatalytic activity for photodegradation of methylorange (MO) dye. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：230 / 233

页数：4

共 15 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Large-scale and shape-controlled syntheses of three-dimensional CdS nanocrystals with flowerlike structure [J].

Chen, Fei ;

Zhou, Renjia ;

Yang, Ligong ;

Liu, Nan ;

Wang, Mang ;

Chen, Hongzheng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (04) :1001-1007

[3] Solvothermal Stepwise Formation of Cu/I/S-Based Semiconductors from a Three-Dimensional Net to One-Dimensional Chains [J].

Chen, Yang ;

Wang, Zi-Ou ;

Ren, Zhi-Gang ;

Li, Hong-Xi ;

Li, Duan-Xiu ;

Liu, Dong ;

Zhang, Yong ;

Lang, Jian-Ping .

CRYSTAL GROWTH & DESIGN, 2009, 9 (11) :4963-4968

[4] Assessment of 4-(dimethylamino)pyridine as a capping agent for gold nanoparticles [J].

Gandubert, VJ ;

Lennox, RB .

LANGMUIR, 2005, 21 (14) :6532-6539

[5] One-pot solvothermal route to self-assembly of cauliflower-shaped CdS microspheres [J].

Ge, Ming ;

Cui, Yao ;

Liu, Lu ;

Zhou, Zhen .

APPLIED SURFACE SCIENCE, 2011, 257 (15) :6595-6600

[6] Template-free synthesis of uniform CdS hollow nanospheres and their photocatalytic activities [J].

Lin, Guofeng ;

Zheng, Jianwei ;

Xu, Rong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (19) :7363-7370

[7]

Pinna N, 2001, LANGMUIR, V17, P7982, DOI [10.1021/la010287t, 10.1021/1a010287t]

[8]

Rao C.N. R., 2007, Nanomaterials Chemistry: Recent Developments and New Directions

[9] Cauliflower-like CdS Microspheres Composed of Nanocrystals and Their Physicochemical Properties [J].

Rengaraj, Selvaraj ;

Venkataraj, Selvaraj ;

Jee, Sun Hee ;

Kim, Younghun ;

Tai, Cheuk-wai ;

Repo, Eveliina ;

Koistinen, Arto ;

Ferancova, Adriana ;

Sillanpaa, Mika .

LANGMUIR, 2011, 27 (01) :352-358

[10] Synthesis and self-assembly of triangular and hexagonal CdS nanocrystals [J].

Warner, JH ;

Tilley, RD .

ADVANCED MATERIALS, 2005, 17 (24) :2997-+

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