Environmentally benign synthesis of Bi2S3 quantum dot using microwave-assisted approach

Chalermchai Pilapong; Somchai Thongtem; Titipun Thongtem

doi:10.1166/jnn.2013.6849

Environmentally benign synthesis of Bi2S3 quantum dot using microwave-assisted approach

J Nanosci Nanotechnol. 2013 Mar;13(3):2189-92. doi: 10.1166/jnn.2013.6849.

Authors

Chalermchai Pilapong¹, Somchai Thongtem, Titipun Thongtem

Affiliation

¹ Faculte of Associated Medical Sciences, Laboratory of Physical Chemistry Molecular and Cellular Biology, Center of Excellence for Molecular Imaging (CEMI), Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand.

PMID: 23755664
DOI: 10.1166/jnn.2013.6849

Abstract

Oleic acid (OA) capped Bi2S3 quantum dots were successfully synthesized using 180 watt microwave power for 5 minutes in water-ethanol mixed solvents containing oleic acid as capping agent. In this approach, the reaction was conducted in ambient air and a much lower temperature than hot injection approach. The OA capped Bi2S3 QDs were characterized by using XRD, TEM, FTIR, UV-Vis and PL. The OA capped Bi2S3 QDs can be readily modified with sodium dodecyl sulfate (SDS) via hydrophobic interaction to improve their solubility in aqueous solution. According to optical properties of the QDs, the modified QD revealed the additional features, such as photothermal therapeutic agent and fluorescent probe.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bismuth
Microscopy, Electron, Transmission
Microwaves*
Quantum Dots*
Spectroscopy, Fourier Transform Infrared
Sulfides / chemical synthesis*
X-Ray Diffraction

Substances

Sulfides
Bismuth
bismuth sulfide