基于TiO2纳米管薄膜的广泛应用前景,采用阳极氧化的方法制备高度规则排列的TiO2纳米管阵列,研究外加电压、阳极氧化时间、电解液(NH4F+乙二醇)浓度、电解液体系对纳米管阵列生长特性的影响.结果表明:随着外加电压从10V增大到30 V,纳米管的管径和管壁逐渐由22 nm和4.5 nm分别增至82 nm和10nm,而纳米管密度由2240 μm-2降至200 μm-2.纳米管阵列出现的临界阳极氧化时间为5 min,且随着氧化时间延长,纳米管的长度随之增加,当氧化时间增至2h时,纳米管长度增至4 μm,此后,纳米管长度不再增长.在含F-的有机电解液体系中可制备规则的纳米管阵列,当电解液(NH4F+乙二醇)浓度增加到0.2 mol/L后,出现清晰的纳米管管状结构,这是由于F和乙二醇的存在对于TiO2纳米管阵列的形成具有至关重要的作用,F-与Ti4+形成的[TiF6]2-能延缓钛箔阳极的氧化进程,促使钛箔表面形成微孔;而乙二醇则有助于提高电解液的黏度,降低F的扩散速率,保证TiO2纳米管阵列的稳定生长.
参考文献
| [1] | Jayanthi, S.;Kulasekarapandian, K.;Arulsankar, A.;Sankaranarayanan, K.;Sundaresan, B..Influence of nano-sized TiO2 on the structural, electrical, and morphological properties of polymer-blend electrolytes PEO-PVC-LiClO4[J].Journal of Composite Materials,20159(9):1035-1045. |
| [2] | Yu-Ling Wei;Kai-Wen Chen;H. Paul Wang.Study of Chromium Modified TiO_2 Nano Catalyst Under Visible Light Irradiation[J].Journal of nanoscience and nanotechnology,20108(8):5456-5460. |
| [3] | 刘月;余林;魏志钢;潘湛昌;邹燕娣;谢英豪.稀土金属掺杂对锐钛矿型TiO2光催化活性影响的理论和实验研究[J].高等学校化学学报,2013(2):434-440. |
| [4] | Yongkun Li;Hongmei Yu;Changkun Zhang;Wei Song;Guangfu Li;Zhigang Shao;Baolian Yi.Effect of water and annealing temperature of anodized TiO_2 nanotubes on hydrogen production in photoelectrochemical cell[J].Electrochimica Acta,2013:313-319. |
| [5] | Kakoli Das;Amit Bandyopadhyay;Susmita Bose.Biocompatibility and In Situ Growth of TiO_2 Nanotubes on Ti Using Different Electrolyte Chemistry[J].Journal of the American Ceramic Society,20089(9):2808-2814. |
| [6] | Mor GK;Varghese OK;Paulose M;Shankar K;Grimes CA.A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applications[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,200614(14):2011-2075. |
| [7] | Ahmed El Ruby Mohamed;Sohrab Rohani.Modified TiO_2 nanotube arrays (TNTAs): progressive strategies towards visible light responsive photoanode, a review[J].Energy & environmental science: EES,20114(4):1065-1086. |
| [8] | Toshiki Tsubota;Asami Ono;Naoya Murakami.Characterization and photocatalytic performance of carbon nanotube material-modified TiO2 synthesized by using the hot CVD process[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20091/2(1/2):533-538. |
| [9] | Ong KG;Varghese OK;Mor GK;Shankar K;Grimes CA.Application of finite-difference time domain to dye-sensitized solar cells: The effect of nanotube-array negative electrode dimensions on light absorption[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,20074(4):250-257. |
| [10] | Ming-Chi Hsu;Ing-Chi Leu;Yu-Ming Sun;Min-Hsiung Hon.Fabrication of CdS@TiO_2 coaxial composite nanocables arrays by liquid-phase deposition[J].Journal of Crystal Growth,20054(4):642-648. |
| [11] | 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,200422(22):3370-3377. |
| [12] | Jaroenworaluck A;Regonini D;Bowen CR;Stevens R;Allsopp D.Macro, micro and nanostructure of TiO2 anodised films prepared in a fluorine-containing electrolyte[J].Journal of Materials Science,200716(16):6729-6734. |
| [13] | 金冲;张卫国;姚素薇;王宏智.热处理工艺对TiO2纳米管阵列结构及其光电性能的影响[J].无机材料学报,2012(1):54-58. |
| [14] | Zhang, Yulian;Yu, Dongliang;Gao, Mingqi;Li, Dongdong;Song, Ye;Jin, Rong;Ma, Weihua;Zhu, Xufei.Growth of anodic TiO2 nanotubes in mixed electrolytes and novel method to extend nanotube diameter[J].Electrochimica Acta,2015:33-42. |
| [15] | 陈秀琴;张兴旺;雷乐成.自组织TiO2纳米管阵列的制备及形成机理[J].中国有色金属学报,2010(9):1724-1731. |
| [16] | Mohammadpour, Fatemeh;Behzadi, Fahimeh;Moradi, Mahmood.Fast anodically growth of long, small diameter TiO2 nanotubes by electropolishing of Ti foils in an ethanol-containing solution[J].Materials Letters,2015Jul.1(Jul.1):81-83. |
| [17] | 陶海军;秦亮;王玲;陶杰.TiO2纳米管阵列的制备、热处理及光催化性能[J].中国有色金属学报,2007(5):693-698. |
| [18] | 熊必涛;朱志艳;王长荣;陈宝信;骆钧炎.二氧化钛纳米管阵列薄膜的超声辐射阳极氧化制备[J].化学学报,2013(3):443-450. |
| [19] | Ji, Y.;Lin, K.-C.;Zheng, H.;Zhu, J.-J.;Samia, A.C.S..Fabrication of double-walled TiO_2 nanotubes with bamboo morphology via one-step alternating voltage anodization[J].Electrochemistry communications,20119(9):1013-1015. |
| [20] | Zhu JH;Yang D;Geng JQ;Chen DM;Jiang ZY.Synthesis and characterization of bamboo-like CdS/TiO2 nanotubes composites with enhanced visible-light photocatalytic activity[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,20085(5):729-736. |
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%