【摘要】 以固相反应合成了LiAlNb2O7,并用离子交换法制备出HAlNb2O7,通过紫外光分解等反应将Pt和TiO2分别掺杂到HAlNb2O7上。运用X射线衍射、漫反射、ICP和比表面积等测试技术对样品进行表征。在波长大于290 nm的100 W汞灯照射30 min下,1.0 g样品可催化分解甲醇溶液(10%)产生氢气约7 mL,表明所制备的材料具有较高的光催化活性。更多还原

【Abstract】 HAlNb2O7was prepared by calcining stoichiometric mixture of Li2CO3,Al2O3and Nb2O5,followed by ion ex-change with HCl.HAlNb2O7/M(M=Pt,TiO2)composite photocatalyst wassynthesized bysuccessivereactionof HAlNb2O7with[Pt(NH3)4]Cl2and C12H28O4Ti respectively under UVlight irradiation.Then,the XRD,DRS(diffuse reflectancespectrum),ICP(Inductively Coupled Plasma),and specific surface area measurements were made onthe samples.Underirradiation withλ>290 nmfroma Hg lamp of 100 Wfor 30 min,about 7 mL hydrogen was produced form1250 mLmethanol solution(10 %) containing 1g of dispersed HAlNb2O7/Pt.更多还原