中文摘要：

以醋酸锌和硝酸钇为原料,丙烯酰胺为单体,N,N’-亚甲基双丙烯酰胺为网络剂,过硫酸铵为引发剂,采用高分子网络凝胶法制备得到掺钇的ZnO纳米粉体。以甲基橙为目标降解物,考察了不同掺钇量的纳米ZnO的光催化性能。用X射线衍射仪、透射电镜、X射线能谱仪、比表面积与孔隙率分析仪等对其进行表征。结果表明,钇的掺入提高了ZnO的光催化活性,钇锌摩尔比为0.23%时光催化性能最好,高压汞灯下反应1 h,甲基橙的脱色率为94.5%,相比于未掺杂的ZnO提高了9.5%。

英文摘要：

Yttrium-doped zinc oxide（ ZnO） nanoparticles were synthesized by the polyacrylamide gel method using zinc acetate and yttrium nitrate as raw materials,acrylamide as the monomer,N,N＇-methylenediacrylamide as the lattice reagent,and ammonium ion as the initiator. Methyl orange was chosen as the target pollutant to investigate the photocatalytic properties of ZnO doped with different amounts of yttrium. XRD,TEM,XPS,and BET were carried out to characterize the prepared powder. The results showed that yttrium can improve the photocatalytic activity of ZnO,and the maximum photocatalytic activity was achieved when zinc and yttrium were in a molar ratio of 0. 23%. At this molar ratio,after treatment in high pressure mercury lamp irraditation for 1 h,the decolorization rate of methyl orange reached to 94. 5%; this value was 9. 5% higher than that achieved when pure ZnO was used as the catalytic agent.