| 第 48 卷第 6 期 |  | Vol. 48 No. 6 | | 2018 年 12 月 | Dec 2018 |
|
所屬欄目：功能材料
稀土金屬摻雜氧化鋅光催化劑的合成與表征 |
| 馮 晨1，王海芳1*，郭嘉華1，魏 陽(yáng)1，2
（1. 中北大學(xué) 環(huán)境與安全工程學(xué)院，山西 太原 030051；2. 環(huán)境保護部華南環(huán)境科學(xué)研究所，廣東 廣州 510655） |
| 摘 要：為了提高半導體氧化鋅（ZnO）的光催化性能，通過(guò)稀土金屬鉺（Er）和釹（Nd）共摻雜ZnO的方法研究了共摻雜對ZnO內部結構的影響。采用化學(xué)沉淀法和溶劑熱法合成了不同形貌的ZnO，并通過(guò)X射線(xiàn)衍射（XRD），掃描電子顯微鏡（SEM），紫外-可見(jiàn)漫反射光譜（UV-vis）等表征手段分析摻雜樣品結構性質(zhì)。研究結果顯示：溶劑熱法合成的ZnO晶粒尺寸較純ZnO大幅縮��；ZnO共摻雜后有更強的紫外和可見(jiàn)光發(fā)射，吸收帶邊出現紅移。稀土元素Er和Nd共摻雜ZnO可以有效提高其光催化降解效率。 |
| 關(guān)鍵詞：氧化鋅；稀土金屬；催化活性；半導體 |
| 中圖分類(lèi)號：TB321；X703.1 文獻標識碼：A 文章編號：1009-9212（2018）06-0049-04 |
|
| Synthesis and Characterization of Rare Earth Ions Co-doped ZnO |
| FENG Chen1, WANG Hai-fang1*, GUO Jia-hua1, WEI Yang1,2
(1.School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China;2.South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China) |
| Abstract：In order to improve the photocatalytic performance of zinc oxide(ZnO), the effect of co-doping on the internal structure of ZnO was studied by co-doping ZnO with rare earth ions including Er and Nd. Different morphologies of ZnO were synthesized by chemical precipitation and solvothermal methods. The samples were determined using X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy(UV-vis). The results showed thatsizes of ZnO grains prepared by solvent-thermal methodwere much smaller than pure ZnO. After ZnO co-doping, there was stronger ultraviolet and visible light emission, and the absorption band was red shifted.It was concluded that rare earth elements Er and Nd co-doped ZnO could greatly improve the photocatalytic degradation efficiency. |
| Key words：zinc oxide; rare earth metal;catalytic activity; semiconductors |
|
基金項目：廣東省級財政技術(shù)研究與開(kāi)發(fā)補助費用項目（PM-zx097-201601-024）。
|
作者簡(jiǎn)介：馮 晨（1994-），女，山西晉城人，碩士研究生，研究方向：半導體光催化劑（E-mail：545069055@qq.com）。
|
聯(lián) 系 人：王海芳，副教授，研究方向：半導體光催化（E-mail：3523797712@qq.com）。
|
收稿日期：2018-12-21
|
|