【摘要】 将杂多酸(GaWmFen)负载到阴离子交换树脂(Resin)上,得到GaWmFen/Resin(GaWmFenR)固相光催化剂,在可见光的照射下,以罗丹明B(RhB)为模型化合物,含镓的GaWmFen/Resin(GaWmFenR)催化剂可以有效地活化H2O2降解染料RhB,随着铁原子的取代数目的增多,RhB浓度比降低的趋势加快,GaW9Fe3最快,C/C0降低0.937。在光照300 min以后,体系的总有机碳(TOC)的变化趋于平缓,减少了0.15 mg.L-1。催化剂的8次重复试验结果表明GaWmFenR固相光催化剂易于分离,并且具有良好的稳定性,可以重复利用。更多还原

【Abstract】 A heterogeneous polyoxometalate photocatalyst,GaW9Fe3 /Resin(GaWFR),was obtained by loading GaW9Fe3 on an anionic exchange resin and used to activate H2O2 for the efficient degradation of dyes under visible light irradiation.Rhodamine B(RhB)was employed as a model compound for the kinetic study in the photoreaction.The total organic carbon changes of the system indicated that the aromatic structure of RhB dye was decomposed.The recycle experiment suggested the excellent stability and reusability of the heterogeneous polyoxometalate photocatalyst.更多还原