Facile synthesis of cysteine and triethanolamine capped CdTe nanoparticles

[Display omitted] ► Cysteine and triethanolamine capped CdTe nanoparticles have been synthesized using a simple method. ► Both capping groups are effective for water soluble CdTe. ► The absorption and luminescence properties are reported. ► The electron microscopy results confirm the high quality of...

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Bibliographic Details
Published in:Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 2013-01, Vol.101 (1), p.450-456
Main Authors: Mntungwa, Nhlakanipho, Rajasekhar Pullabhotla, Viswanadha Srirama, Revaprasadu, Neerish
Format: Article
Language:English
Subjects:
acetates
aqueous solutions
Ascorbic Acid - chemistry
Borohydrides
cadmium
Cadmium - chemistry
Cadmium Compounds - chemical synthesis
CdTe nanoparticles
colloids
Cysteine
Cysteine - chemical synthesis
Ethanolamines - chemical synthesis
Fourier transform infrared spectroscopy
Indicators and Reagents
ions
Luminescence
Microscopy, Electron, Transmission
Nanoparticles
nitrates
Particle Size
Spectrophotometry, Ultraviolet
Spectroscopy, Fourier Transform Infrared
Tellurium
Tellurium and particle size
transmission electron microscopy
Triethanolamine
X-Ray Diffraction
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Summary:[Display omitted] ► Cysteine and triethanolamine capped CdTe nanoparticles have been synthesized using a simple method. ► Both capping groups are effective for water soluble CdTe. ► The absorption and luminescence properties are reported. ► The electron microscopy results confirm the high quality of the material. Cysteine and triethanolamine capped CdTe nanoparticles have been synthesized using a simple aqueous solution based method. This method involves the reaction of tellurium powder with sodium borohydride (NaBH4) in water to produce telluride ions (Te2−), followed by the simultaneous addition of an aqueous solution of cadmium chloride or other cadmium source (acetate, carbonate and nitrate) and solution of l-cysteine ethyl ester hydrochloride or triethanolamine. The effect of capping agent on the size, structure and morphology of the as-synthesized nanoparticles was investigated. The particles were characterized using optical spectroscopy, transmission electron microscopy (TEM), high-resolution TEM (HRTEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy.
ISSN:0927-7765
1873-4367
DOI:10.1016/j.colsurfb.2012.07.010