采用溶胶-凝胶法制备了过渡金属Ni掺杂纳米TiO2光催化剂(Ni-TiO2),采用XRD、纳米粒度、UVVis和PL对其进行了表征和分析,并以亚甲基蓝(MB)作为目标降解物,研究了Ni掺杂量以及热处理温度对NiTiO2性能的影响.结果表明:当pH=2.5、n(Ni)∶n(Ti)=1％、热处理温度为500℃时制备的样品在普通日光灯下、5h内对MB的光催化降解率达到92.54％,明显优于Degussa P25在相同条件下的降解率(50.69％).%Ni-doped TiO2 photocatalysts were synthesized by sol-gel method and characterized by XRD,size distribution,UV-Vis and PL instruments.Meanwhile,the degradation of methyl blue (MB) was investigated under fluorescent lamp to test the photocatalytic activity of the samples with different Ni-doped concentration and sintered at different temperature.The results show that when pH value is 2.5,n(Ni) ∶ n(Ti)=1％ and sintered temperature is 500 ℃,the degradation rate of MB have reached to 92.54％ at ordinary daylight lamp after 5 hours,which is higher than that of P25 (50.69％) degraded in common condition.
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