(Phen)2.5HPW/WO3复合空心微球的制备及光催化性能

通过磷钨酸H3PW12O40(HPW)和邻菲啰啉C12H8N2(Phen)的溶液反应,合成了杂多化合物(C12H8N2)2.5H3PW12O40((Phen)2.5HPW),以WO3空心微球为载体,负载杂多化合物(Phen)2.5HPW,制备了(Phen)2.5HPW/WO3复合空心微球.用等离子体原子发射光谱(ICP...

Preparation and Photocatalytic Performance of WO3/(Phen)2.5HPW Composite Hollow Microspheres

Heteropoly compound (C12H8N2)2.5?H3PW12O40 ((Phen)2.5HPW) was synthesized via a solution reaction between phosphotungstic acid (HPW) and Phenanthroline (Phen), and WO3/(Phen)2.5HPW composite hollow microspheres were prepared with WO3 hollow microspheres dipping in Phenanthroline and phosphotungstic acid solution subsequently. Inductively coupled plasma atomic emission spectroscopy (ICP-AES), elemental analysis (EA) , thermogravimetry-differential thermal analysis (TG-DTA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS) were used for characterization. Photocatalytic performance of the heteropoly compound (Phen)2.5HPW, WO3 hollow microspheres and WO3/(Phen)2.5HPW composite hollow microspheres were tested by photocatalytic decomposition of methyl orange aqueous solution upon irradiation of high pressure mercury lamp, respectively. The results showed that the activity of WO3/(Phen)2.5HPW composite hollow microspheres was higher than that of (Phen)2.5HPW and WO3 hollow microspheres respectively, and deactivation of WO3/(Phen)2.5HPW composite hollow microspheres was negligible when the catalyst was separated for recycling applications.