Autors: Lazarova, K., Boycheva, S. V., Vasileva, M., Zgureva, D. M., Georgieva, B., Babeva, T.
Title: Zeolites from fly ash embedded in a thin niobium oxide matrix for optical and sensing applications (Open Access)
Keywords: Alkaline activators, Extinction coefficients, Morphology and

Abstract: Thin films consisting of a sol-gel Nb2O5 matrix doped with fly ash zeolites in different volume fractions were deposited by the method of spin-coating. Zeolites of Na-X phase were prepared by long-term alkaline atmospheric conversion of coal ash collected from the electrostatic precipitators in TPP "AES Galabovo" supplied by lignite coal from the "Maritza East" basin using two different molarities of alkaline activator (NaOH). The surface morphology and structure of zeolite powders and films were studied by scanning electron microscopy and X-ray diffraction, respectively. Optical constants (refractive index and extinction coefficient) along with thickness of the films were calculated using a previously developed procedure comprising two steps of nonlinear minimization of the discrepancies between the measured and calculated reflectance spectra of films deposited on silicon substrates. The liquid adsorption and vapor sensing ability of fly ash zeolites were tested by measuring..

References

    Issue

    Jubilee International School on Condensed Matter Physics: Physics and Applications of Advanced and Multifunctional Materials, ISCMP 2018, Journal of Physics: Conference Series, vol. 1186, issue 1, pp. Article number012024, 2019, Bulgaria, IOP Publishing Ltd., DOI 10.1088/1742-6596/1186/1/012024

    Copyright IOP Publishing Ltd.

    Цитирания (Citation/s):
    1. Tlegenov, R.B., Niyazbekova, R.K., Jexembayeva, A.E., Korniejenko, K., Aruova, L.B., Aldabergenova, S.S., Maykonov, A.S. The Effect of Fly Ash Additive on the Thermal Conductivity of Polystyrene Concrete (2024) Buildings, 14 (9), art. no. 2850, . https://www.scopus.com/inward/record.uri?eid=2-s2.0-85205237377&doi=10.3390%2fbuildings14092850&partnerID=40&md5=d4804cbebf7773fa7f17e1703bb61654 DOI: 10.3390/buildings14092850 DOCUMENT TYPE: Article SOURCE: Scopus - 2024 - в издания, индексирани в Scopus или Web of Science
    2. Buema, G., Lisa, G., Kotova, O., Ciobanu, G., Ivaniciuc, L., Favier, L., Harja, M. Application of thermal analysis to improve the preparation conditions of zeolitic materials from flying ash (2021) Environmental Engineering and Management Journal, 20 (3), pp. 377-388. https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103335478&partnerID=40&md5=9302f195814020abe18b7651f05191f7 DOCUMENT TYPE: Article SOURCE: Scopus - 2021 - в издания, индексирани в Scopus или Web of Science
    3. Harja, M., Ciobanu, G. Eco-friendly Nano-adsorbents for Pollutant Removal from Wastewaters (2021) Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications: Volumes 1-4, 3, pp. 2225-2246. https://www.scopus.com/inward/record.uri?eid=2-s2.0-85161864465&doi=10.1007%2f978-3-030-36268-3_68&partnerID=40&md5=b479b33328c6e2db993d63725da837c7 DOI: 10.1007/978-3-030-36268-3_68 DOCUMENT TYPE: Book Chapter SOURCE: Scopus - 2021 - в издания, индексирани в Scopus или Web of Science

    Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus