Supported ammonium phosphotungstate catalyst was prepared by sol-gel method and characterized by X-ray diffraction(XRD) and IR spectra,and catalytic activity of catalyst in nitration of benzene was tested.

Then the prepared acid reacts with NH4HCO3,and forms ammonium-substituted dodecatungstophopsphate.

Synthesized and characterization of ammonium molybdotungstophosphate and flame retardancy,smoke suppression of its composites;

Study of phosphotungstate photocatalytic degradation of methyl orange;