Browsing by Author "Nintianova D."

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    SYNTHESIS AND CHARACTERIZATION OF NANOPARTICLES FROM COAL FLY ASH
    (2024-01-01) Markov P.; Chernev G.; Nintianova D.; Kazakova N.; Karakostov H.
    In this study, amorphous nanoparticles were extracted from fly ash using a sol-gel method. The obtained nanoparticles were characterized using XRF spectroscopy, XRD, FT-IR and TEM. The XRD curves show the presence of both crystalline and amorphous phases. FT-IR analysis indicated the presence of silanol and siloxane groups. Upon analysis, the primary nanoparticles were found to exhibit a roughly spherical shape with an average size of approximately 65 nm. The findings of this study demonstrate the feasibility of applying the sol-gel method to synthesize nanoparticles derived from coal fly ash (CFA), thereby avoiding other expensive and energy-intensive methods of nanoparticle synthesis.