以六水合硝酸锌[Zn（NO₃）₂·（H₂O）₆]、六水合硝酸钕[Nd（NO₃）₃·6H₂O]和五水合硝酸铒[Er（NO₃）₃·5H₂O]为掺杂改性材料，采用溶胶-凝胶法制备锐钛矿型Nd-Er/ZnO-TiO₂复合光催化材料。利用XRD、BET、SEM、UV-Vis对所制光催化材料进行表征。以2，4-DCP为目标降解物，在高压汞灯与长弧氙灯照射下，验证所制复合光催化材料的光催化活性。光催化剂1% Nd-1% Er/5% ZnO-TiO₂光催化效能最高。在紫外光下照射2 h，对2，4-DCP降解率为94.26%；在可见光下照射 6 h，对2，4-DCP降解率为64.7%。

Nd-Er/ZnO-,TiO₂,an anatase-type composite photocatalytic material is synthesized by sol-gel method through using Zn(NO₃)₂·(H₂O)₆,Nd(NO₃)₃·6H₂O and Er(NO₃)₃·5H₂O as doping modification materials and is characterized by means of X-ray diffraction (XRD),surface area analyzer (BET),scanning electron microscope (SEM) and UV diffuse reflectance analyzer (UV-Vis).With 2,4-dichlorophenol (2,4-DCP) as target degradation material,the photocatalytic activity of the synthesized composite photocatalytic materials is verified under irradiation of high voltage mercury lamp and long arc xenon lamp.It is found that 1%Nd-1%Er/5%ZnO-TiO₂ exhibits the highest photocatalytic efficiency and can make the degradation rate of 2,4-DCP reach 94.26% under ultraviolet light irradiation for 2 h and 64.7% under visible light irradiation for 6 h.

陈昕海(1990-),男,硕士研究生,研究方向为污染控制理论与技术,839508227@qq.com。