Flower-shaped nanometer zinc oxide and its complex incorporating La–Nd have been prepared using hydrothermal method with zinc chloride and urea as raw materials, ethylene glycol as morphology controller. The powdered samples were characterized by scanning electron microscopy, X-ray diffractometry, photocatalytic test with solutions of reactive dyes as indicators. In conclusion, the optimum doping ratios of La/Nd are considered to be 3%/3%. When 3%La–3%Nd/ZnO was served as photocatalyst, considerable degradations of dyes were caused under the ultraviolet and visible light without exception, owing to the expanded excitation wavelength and reduced band gap of ZnO after incorporating. While using the compound material in effluent treatment containing reactive dyes, the decomposition rate of dyes, respectively, reached 99.99% and 80% or more under UV-light and visible irradiation for 60 min, appreciable removal effects of organic pollutants were obtained, testifying 3%La–3%Nd/ZnO to be a splendid UV-Vis catalyst.

中文翻译：

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La-Nd/ZnO紫外-可见光催化性能研究及大规模含活性染料废水处理的可能性

以氯化锌和尿素为原料，乙二醇为形貌控制剂，采用水热法制备了花形纳米氧化锌及其掺入La-Nd的络合物。以活性染料溶液为指标，采用扫描电镜、X射线衍射仪、光催化试验对粉状样品进行表征。总之，La/Nd的最佳掺杂比被认为是3%/3%。当 3%La–3%Nd/ZnO 用作光催化剂时，由于掺入后 ZnO 的激发波长扩大和带隙减小，染料在紫外光和可见光下无一例外地引起了相当大的降解。在含有活性染料的废水处理中使用该复合材料时，染料的分解率分别达到了99。