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 [1], CdS, Ni3S4[2] and Bi2S3 [3] 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.




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