Ultrasonic Degradation Performance of the NiZrMo Heteropoly Salt with Keggin Structure

Zhi Hong Zhang; Zhi Wei Guo

doi:10.4028/www.scientific.net/AMM.178-181.623

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Ultrasonic Degradation Performance of the NiZrMo...

Ultrasonic Degradation Performance of the NiZrMo Heteropoly Salt with Keggin Structure

Abstract:

A new heteropoly salt with Keggin structure of the 1:1:11 series had been synthesized, and characterized the structure by the foruier transform infrared spectroscopy (IR), ultraviolet spectra (UV) and X-ray diffraction (XRD).The thermal stability and the number of the crystal water was analyzed by the thermal gravimetric analysis/differential thermal analysis (TG/DTA). It was showed the molecular formula was Na₆[Ni(ZrMo₁₁O₃₉)]•20H₂O( Abbrev.NiZrMo),it possessed Keggin structure and had good thermal stability. The influences on the degradation rate, such as the amount of the NiZrMo, the initial concentration of the AGB dye wastewater, the ultrasonic frequency and power, were investigated. The results showed that the degradation rate could reach 90.19% after 60min irradiation, when the amount of the NiZrMo was 0.8g•L^-1, the concentration of the AGB was 10mg•L^-1, the ultrasonic frequency was 40kHz and the ultrasonic power was 80W.