Synthesis of Surfactant Free Metal Chalcogenide Nanoparticles and Their Applications as Catalysts and Photoresponsive Materials
Billakanti Srinivas and Krishnamurthi Muralidharan*
School of Chemistry, University of Hyderabad, Hyderabad-500 046, India
Abstract: The capping agents present on the surfaces of nanoparticles unfavourably modify the properties of the nanostructures. To overcome this, we have developed a method which yields the surfactant or capping agent free nanoparticles. We have synthesized a series of metal sulfide nanoparticals such as CuS, Cu2S , CdS, Ni3S4 and Bi2S3  through “hexamethyldisilazane (HMDS) assisted synthetic method”. The synthesized nanoparticles were characterized thoroughly by the data obtained from Powder X-ray diffraction (PXRD), Fourier-transform infrared spectra (FT-IR), Energy dispersive X-ray analysis (EDAX) and Transmission electron microscopy (TEM) analyses. Surfactant free nanoparticles were achieved by our developed method and further studied their applications in catalysis, photocatalysis and photoresponsive behavior.