[1]陆晓旺,张作松,殷禹.CeO2纳米颗粒修饰TiO2纳米管阵列及其光催化性能[J].常州大学学报(自然科学版),2016,(05):21-27.[doi:10.3969/j.issn.2095-0411.2016.05.004]
　LU Xiaowang,ZHANG Zuosong,YIN Yu.CeO2 Nanoparticles Decorated TiO2 Nanotube Arrays and Its Photocatalytic Performance[J].Journal of Changzhou University(Natural Science Edition),2016,(05):21-27.[doi:10.3969/j.issn.2095-0411.2016.05.004]
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CeO2纳米颗粒修饰TiO2纳米管阵列及其光催化性能()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年05期
页码:
21-27
栏目:
材料科学与工程
出版日期:
2016-09-30

文章信息/Info

Title:
CeO2 Nanoparticles Decorated TiO2 Nanotube Arrays and Its Photocatalytic Performance
作者:
陆晓旺1; 2; 张作松1; 殷禹1
1.常州大学 材料科学与工程学院,江苏 常州 213164; 2.江苏大学 材料科学与工程学院,江苏 镇江 212013
Author(s):
LU Xiaowang1; 2;  ZHANG Zuosong1;  YIN Yu1
1. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; 2. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
关键词:
CeO2/TiO2复合纳米管阵列;  阳极氧化法;  微波辅助均相沉淀法;  光催化降解
Keywords:
CeO2/TiO2 composite nanotube arrays;  anodic oxidation method;  microwave assisted homogeneous precipitation method;  photocatalytic degradation
分类号:
TB 34
DOI:
10.3969/j.issn.2095-0411.2016.05.004
文献标志码:
A
摘要:
采用阳极氧化法在钛基底板上制备了TiO2纳米管阵列,利用微波辅助均相沉淀法将CeO2纳米颗粒修饰到TiO2纳米管阵列上。利用场发射扫描电镜(FESEM), 能谱仪(EDS),X射线粉末衍射仪(XRD),紫外可见漫反射光谱(UV-Vis),X射线光电子能谱(XPS)等测试手段对所制备的复合材料进行表征,并对其电化学阻抗谱及光催化降解亚甲基蓝染料废水性能进行考察。结果表明:CeO2纳米颗粒的修饰将TiO2纳米管阵列的光响应范围拓宽至可见光区域; 相对于TiO2纳米管阵列,CeO2/TiO2复合纳米管阵列电荷转移阻力减小,电子-空穴的分离效率提高,载流子的传输速率较快。复合材料表现出较高的光催化活性,其在4h内对亚甲基蓝光催化降解率可达80%。
Abstract:
TiO2 nanotube arrays were prepared by anodic oxidation method on the titanium substrate, and CeO2 nanoparticles were deposited on the TiO2 nanotube arrays by the microwave homogeneous precipitation method. Field emission scanning electron microscopy(FESEM), energy-dispersive spectrometry(EDS), X-ray diffraction(XRD)and UV-Vis diffuse reflectance spectroscopy(DRS)were used to characterize the nanocomposites. The electrochemical impedance spectroscopy(EIS)and the performance of photocatalytic degradation of methylene blue were investigated. The results show that the CeO2 nanoparticles modification can broaden the absorption spectrum of TiO2 nanotube arrays to the visible light region, relative to pure TiO2 nanotube arrays. The charge transfer resistance of CeO2/TiO2 composite nanotube arrays is decreased,the efficiency of electron-cavity separated is increased,the carrier transport rate is faster. The CeO2/TiO2 nanotube arrays photocatalyst show higher photocatalytic activity and the methylene blue degradation rate can reach 80% by using photocatalyst in 4 hours.

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备注/Memo

备注/Memo:
收稿日期:2015-04-11。基金项目:国家自然科学基金资助项目(21277094)。作者简介:陆晓旺(1983—),男,江苏盐城人,硕士,实验师,主要从事功能材料研究。
更新日期/Last Update: 2016-10-10