以Ni2+/TiO2粉体和NaOH为原料,采用水热法制备了Ni2 +/TiO2纳米管,通过XRD、UV-Vis、SEM等技术对Ni2+-TiO2纳米管的结构、形貌等进行表征,并以罗丹明B为目标降解物,对样品光催化活性进行评价.结果表明:煅烧前,样品主要以钛酸盐的形式存在,有很好的管状结构,管壁较薄,管径为50 ～ 100 nm,管长约为12μm,长径比较大.UV-Vis谱显示约为在284 nm处有一个较弱的吸收峰；500℃煅烧后,钛酸盐的衍射峰强度明显降低,TiO2衍射峰强度增强,纳米管出现坍塌、断裂,锐钛矿相显著,对光的吸收范围也拓展到可见光区,且煅烧后样品的光催化活性显著提高,60 min降解率可达95％.
参考文献
| [1] | Jan M. Macak;Martin Zlamal;Josef Krysa;Patrik Schmuki .Self-Organized TiO_2 Nanotube Layers as Highly Efficient Photocatalysts[J].Small,2007(2):300-304. |
| [2] | Lai YK;Sun L;Chen YC;Zhuang HF;Lin CJ;Chin JW .Effects of the structure of TiO2 nanotube array on Ti substrate on its photocatalytic activity[J].Journal of the Electrochemical Society,2006(7):D123-D127. |
| [3] | HUI-FANG ZHUANG;CHANG-JIAN LIN;YUE-KUN LAI .Some Critical Structure Factors of Titanium Oxide Nanotube Array in Its Photocatalytic Activity[J].Environmental Science & Technology: ES&T,2007(13):4735-4740. |
| [4] | Mor GK;Shankar K;Paulose M;Varghese OK;Grimes CA .Use of highly-ordered TiO2 nanotube arrays in dye-sensitized solar cells[J].Nano letters,2006(2):215-218. |
| [5] | H. Wang;C. T. Yip;K. Y. Cheung;A. B. Djurisic;M. H. Xie;Y. H. Leung;W. K. Chan .Titania-nanotube-array-based photovoltaic cells[J].Applied physics letters,2006(2):023508-1-023508-3-0. |
| [6] | Maggie Paulose;Karthik Shankar;Oomman K Vargliese .Backside illuminated dye-sensitized solar cells based on titania nanotube array electrodes[J].Nanotechnology,2006(5):1446-1448. |
| [7] | Oomman K. Varghese;Dawai Gong;Maggie Paulose;Keat G. Ong;Elizabeth C. Dickey;Craig A. Grimes .Extreme Changes in the Electrical Resistance of Titania Nanotubes with Hydrogen Exposure[J].Advanced Materials,2003(7/8):624-627. |
| [8] | Oomman K. Varghese;Gopal K. Mor;Craig A. Grimes;Maggie Paulose;Niloy Mukherjee .A Titania Nanotube-Array Room-Temperature Sensor for Selective Detection of Hydrogen at Low Concentrations[J].Journal of nanoscience and nanotechnology,2004(7):733-737. |
| [9] | Hoyer P .Formation of a Titanium Dioxide Nanotube Array[J].Langmuir,1996,12(06):1411-1413. |
| [10] | 李欢欢,陈润锋,马琮,张胜兰,安众福,黄维.阳极氧化法制备二氧化钛纳米管及其在太阳能电池中的应用[J].物理化学学报,2011(05):1017-1025. |
| [11] | 汤佳,钟世安,肖文.ZnO/TiO2纳米管的制备及光降解性能研究[J].化工新型材料,2010(08):84-87. |
| [12] | 张青红,高濂,郑珊,孙静.制备均一形貌的长二氧化钛纳米管[J].化学学报,2002(08):1439-1444. |
| [13] | 李伟,王晓冬,杨建军,张顺利,金振声,张治军.高比表面积TiO2纳米管的制备与表征[J].化学研究,2002(03):12-14. |
| [14] | Bavykin DV;Parmon VN;Lapkin AA;Walsh FC .The effect of hydrothermal conditions on the mesoporous structure of TiO2 nanotubes[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2004(22):3370-3377. |
| [15] | 徐凌,唐超群,黄宗斌.V掺杂锐钛矿相TiO2的光吸收特性[J].物理化学学报,2010(05):1401-1407. |
| [16] | 王进贤,郭月秋,董相廷,李志国,刘桂霞.钇或钕掺杂TiO_2纳米纤维的制备及光催化性能研究[J].无机材料学报,2010(04):379-385. |
| [17] | 徐会颖,周国伟,魏英勤,李艳敬.硅掺杂介孔TiO2材料的制备及可见光下降解甲基橙研究[J].化工新型材料,2008(08):58-61. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%