CAJ | 학술논문

用光还原法制备了Pd/ZnO光催化剂(Pd/Zn原子比分别为1/100、2/100和3/100)，以甲基橙为模拟有机污染物，对催化剂的光催化脱色性能进行了考察。光催化剂用 XRD、紫外-可见漫反射和表面光电压谱仪进行了表征，结果表明：当 Pd 沉积量为2/100(Pd/Zn)时电子-空恙分离效应最高，且光催化脱色活性最高；沉积Pd后ZnO在可见光区的吸收增强；高的电子-空恙分离效应有利于提高ZnO光催化活性。
용광환원법제비료Pd/ZnO광최화제(Pd/Zn원자비분별위1/100、2/100화3/100)，이갑기등위모의유궤오염물，대최화제적광최화탈색성능진행료고찰。광최화제용 XRD、자외-가견만반사화표면광전압보의진행료표정，결과표명：당 Pd 침적량위2/100(Pd/Zn)시전자-공양분리효응최고，차광최화탈색활성최고；침적Pd후ZnO재가견광구적흡수증강；고적전자-공양분리효응유리우제고ZnO광최화활성。
ZnO and Pd/ZnO photocatalysts with different molar ratio of Pd/Zn (1/100, 2/100 and 3/100) were prepared by photodeposition method. Photocatalysts prepared were studied by X-ray diffraction (XRD), UV/Vis diffuse reflectance (DRS) and surface photovoltage spectra (SPS) techniques. The results show that 2/100 (Pd/Zn) prepared has the highest photoinduced charge separation rate. XRD results indicate that no peaks of Pd are detected in the 2θregion from 20° to 60°. Pd/ZnO absorbs much more light than ZnO in the visible light region. Among all of the photocatalysts prepared, the 2/100 (Pd/Zn) sample possesses the best photocatalytic activity. High photoinduced charge separation rate is beneficial to the photocatalytic activity of ZnO.