Abstract
Spherical shaped, nanometer to micro meter sized silica particles were prepared in a homogeneous nature by spray technique. Silver nanoparticles were produced over the surface of the silica grains in a harmonized manner. The size of silver and silica particles was effectively controlled by the precursors and catalysts. The electrostatic repulsion among the silica spheres and the electro static attraction between silica spheres and silver particles make the synchronized structure of the synthesized particles and the morphological images are revealed by transmission electron microscope. The silver ions are reduced by sodium borohydride. Infra red spectroscopy and X-ray photoelectron spectroscopy analysis confirm the formation of silver–silica composite particles. Thermal stability of the prepared particles obtained from thermal analysis ensures its higher temperature applications. The resultant silver embedded silica particles can be easily suspended in diverse solvents and would be useful for variety of applications.
Highlights
The glory of nanomaterials is imperative and stimulated its various dimensions in nano-electronics, analytical chemistry, photonics, drug delivery, bio encapsulation, data recording media, gas sensing, storage, electronic, optical, and mechanical devices [1,2,3,4,5,6,7]
The uncontrolled flow of chemicals by the above conventional methods leads to the aggregation as well as nonhomogeneous nature of the nanoparticles and even sometimes it leads to the formation of micro particles too
Though the incorporation of silver nanoparticles over the silica matrix experiences lower thermal stability at higher temperatures, a lower weight percentile loss obtained from the thermal analysis ensures the thermal stability of the synthesized silver embedded silica particles
Summary
The glory of nanomaterials is imperative and stimulated its various dimensions in nano-electronics, analytical chemistry, photonics, drug delivery, bio encapsulation, data recording media, gas sensing, storage, electronic, optical, and mechanical devices [1,2,3,4,5,6,7]. Nahm (&) School of Chemical Engineering and Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea e-mail: nahmks@chonbuk.ac.kr Silver nanoparticles embedded silica particles have been of great interest due to their potential applications in electronic, optical, catalytic, bactericidal, and fungicidal fields [19,20,21].
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