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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%。
Using yttrium acetate and yttrium nitrate as raw materials, acrylamide as monomer, N, N’-methylenebisacrylamide as network agent and ammonium persulfate as initiator, yttrium-doped ZnO was prepared by polymer network gel method Nano-powder. Methyl orange was taken as the target degradation product, and the photocatalytic activity of nano-ZnO with different amounts of doped yttrium was investigated. The materials were characterized by X-ray diffraction, transmission electron microscopy, X-ray energy dispersive spectroscopy, specific surface area and porosity analyzer. The results showed that the incorporation of yttrium increased the photocatalytic activity of ZnO. When the molar ratio of yttrium and zinc was 0.23%, the photocatalytic activity was the best. Under high pressure mercury lamp reaction for 1 h, the decolorization rate of methyl orange was 94.5% The doped ZnO increased by 9.5%.