Study on Synthesis, Characterization and Ultrasonic Degradation the Dyeing Wastewater of 11- MnZrMo Heteropoly Salt with Keggin Structure

Abstract:

The heteropoly salt, Na₆[Mn(Mo₁₁ZrO₃₉)] •19H₂O（MnZrMo）with Keggin structure of the 1:1:11series, was synthesized by the aqueous solution method, and characterized and analyzed. The element analysis showed that the molar ratio of Mn, Zr and Mo was accord with 1:1:11;the thermogravimetric analysis/ differential thermal analysis(TG/DTA) indicated that the MnZrMo had good thermal stability and it contained nineteen molecules of crystallization water; the characterization of the fourier transform infrared spectroscopy(FT-IR),X-ray powder diffraction analysis(XRD) and the ultraviolet spectrum(UV) showed that the anionic of the MnZrMo heteropoly salt possessed Keggin structure; the analysis of the scanning electron microscopy(SEM) showed that it had the basic feature of the macromolecular compound and a regular crystal. The MnZrMo heteropoly salt was used as the catalyst to degrade the acidic-green B(AGB) dyeing wastewater enhanced by the ultrasonic, the degradation rate could reach 95.90%.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 1484-1487
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.1484
• Online since: February 2012
• Authors: Zhi Hong Zhang, Feng Xue
• Keywords: Heteropoly Salt, Keggin Structure, Ultrasonic Degradation

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