Effect of Milling Time on the Sensing Properties of Fly Ash Zeolite Composite Thin Films

Thin films, consisting of a sol–gel Nb2O5 matrix doped with zeolite Na-X synthesized from fly ash through ultrasonic-assisted double-stage fusion-hydrothermal alkaline activation, were deposited by the spin-coating method. In order to improve optical quality and sensing properties thin zeolites wet milled for 60, 120 540 s prior incorporation in film. The liquid adsorption ability films was tested measuring reflectance spectra after exposure acetone change reflection coefficient ∆R calculated. influence milling time on studied.