Ag掺杂的ZnO的制备及光催化活性的研究

J4 ›› 2016, Vol. 1 ›› Issue (6): 38-42.

Ag掺杂的ZnO的制备及光催化活性的研究

（大理大学药学与化学学院，云南大理671000）

收稿日期:2016-03-16 出版日期:2016-06-15 发布日期:2016-06-15
作者简介:张艳青，硕士研究生，主要从事药物分析研究.
基金资助:
云南省应用基础研究计划项目（2011FZ163）；国家自然科学基金资助项目（21563003）

Study on Preparation and Photocatalytic Activity of Ag-doped ZnO

College of Pharmacy and Chemistry, Dali University, Dali, Yunnan 671000, China

Received:2016-03-16 Online:2016-06-15 Published:2016-06-15

摘要/Abstract

摘要：

目的：探讨Ag掺杂的ZnO的光催化活性。方法：采用直接沉淀法制备不同掺Ag比例的ZnO催化剂（Ag-ZnO），通过X
射线粉末衍射（XRD）、X射线光电子能谱（XPS）、透射电子显微镜（TEM）、紫外-可见漫反射谱（UV-Vis DRS）、荧光光谱（PL）对
产物进行表征。以罗丹明B为模型污染物，1 000 W碘钨灯为光源，考察Ag的不同掺杂量对ZnO的光催化活性的影响。结果：
适量Ag掺杂到ZnO中能提高ZnO的光催化活性，其中x = 2%和x = 6%（Ag与ZnO的摩尔比）的Ag-ZnO具有最高的光催化活
性，Ag-ZnO的活性光谱范围为λ <400 nm。结论：Ag能提高ZnO的光催化活性，但不能改变ZnO的活性光谱范围。

关键词: 直接沉淀法, 银, 掺杂, 氧化锌, 光催化

Abstract:

Objective: To explore the photocatalytic activity of Ag-doped zinc oxide. Methods: Ag doped ZnO（Ag-ZnO）with
different Ag molar content was prepared by direct precipitation method. XRD, XPS, TEM, UV- Vis DRS, and PL were used to
characterize the products. When Rhodamine B（RhB）was selected as the model contaminant, 1 000 W halogen lamp as light source,
the effects of different amount of Ag-doped on the photocatalytic activities of ZnO were explored. Results: Photocatalytic activity of
ZnO was enhanced when appropriate amount of Ag was doped into ZnO. The optimum amount of doped-Ag are x = 2% and x = 6%.
Ag-ZnO with the optimal Ag-doped amount showed the highest photocatalytic activity, and the active spectral range isλ < 400 nm.
Conclusion: Ag can improve the photocatalytic activity of ZnO, while cannot change the active spectral range of ZnO.

Key words: direct precipitation, silver, dope, zinc oxide, photocatalysis

中图分类号:

O611.3

张艳青，李旦旦，严亚. Ag掺杂的ZnO的制备及光催化活性的研究[J]. J4, 2016, 1(6): 38-42.

Zhang Yanqing, Li Dandan, Yan Ya. Study on Preparation and Photocatalytic Activity of Ag-doped ZnO[J]. J4, 2016, 1(6): 38-42.

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