目的：制备一种高抗菌性和高光催化活性的Ag掺杂TiO2（Ag-TiO2）纳米棒阵列。方法通过磁控溅射与水热复合处理法，在钛箔片表面制备出Ag掺杂TiO2（Ag-TiO2）纳米棒阵列，酸化处理过的试样在500℃下煅烧2 h。采用X射线衍射（XRD）进行物相分析，利用场发射扫描电子显微镜（SEM）、场发射透射电子显微镜（TEM）、能量分散谱仪(EDS)观察试样的表面、截面形貌、微观结构和组成，并探究其对大肠杆菌和金黄色葡萄球菌的杀菌性能和对亚甲基蓝的光催化降解能力。结果该工艺下制备的 Ag-TiO2纳米棒大小均匀，取向明显，主要由锐钛矿型 TiO2相组成。Ag-TiO2纳米棒对大肠杆菌和金黄色葡萄球菌具有优异的杀菌效果，杀菌率几乎达到100%。Ag-TiO2纳米棒能有效地提高亚甲基蓝的降解率。结论磁控溅射与水热复合处理法在钛箔片表面成功制备出Ag-TiO2纳米棒阵列，此阵列具有优异的杀菌能力、高抗菌和光催化降解性能。
Objective To prepare Ag-TiO2 nanorod arrays with excellent antibacterial activity and photocatalytic perfor-mance.Methods The Ag-TiO2 nanorod arrays were synthesized directly on Ti foils by magnetron sputtering and hydrothermal treatment method. The acid treated sample was calcined at 500 degrees for 2 hours. The phase composition of the synthesized samples was analyzed by X-ray diffraction (XRD), Surface cross sectional morphology microstructure and chemical elements were observed by scanning electron Microscope (SEM), transmission electron microscope (TEM) and Energy Dispersive Spec- troscopy(EDS). The photocatalytic antibacterial performance after contact with S. aureus and E. coli was assessed. And the pho-tocatalytic degradation of methylene blue was measured under visible light.ResultsThe results showed that the anatase TiO2 phase nanorods had uniform size and obvious orientation. The Ag-TiO2 nanorod arrays showed excellent efficient antibacterial activity against S. aureus and E. coli, and almost all of the bacteria were killed. The result of photocatalytic experiment showed that the degradation rate of methylene blue was effectively improved by the Ag-TiO2 nanorod arrays. ConclusionThe Ag-TiO2 nanorod arrays were successfully synthesized on Ti foils substrate by the composite technology of magnetron sputtering and hy-drothermal treatment method. The Ag-TiO2 nanorod arrays showed excellent antibacterial activity and a better photocatalytic performance.
参考文献
| [1] | D. V. Bavykin;J. M. Friedrich;F. C. Walsh.Protonated Titanates and TiO_2 Nanostructured Materials: Synthesis, Properties, and Applications[J].Advanced Materials,200621(21):2807-2824. |
| [2] | Xiaobo Chen;Samuel S. Mao.Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications[J].Chemical Reviews,20077(7):2891-2959. |
| [3] | Poulomi Roy;Steffen Berger;Patrik Schmuki.TiO2 Nanotubes: Synthesis and Applications[J].Angewandte Chemie,201113(13):2904-2939. |
| [4] | Meng Ni;Michael K.H. Leung;Dennis Y.C. Leung;K. Sumathy.A review and recent developments in photocatalytic water-splitting using TiO_2 for hydrogen production[J].Renewable & Sustainable Energy Reviews,20073(3):401-425. |
| [5] | 张宇;李庆;曹金利;覃礼钊;张进;李元;戴策.室温水溶液法制备Cu2O纳米颗粒及其光催化性能[J].表面技术,2013(3):75-77. |
| [6] | ZHAOYUE LIU;XINTONG ZHANG;SHUNSUKE NISHIMOTO.Efficient Photocatalytic Degradation of Gaseous Acetaldehyde by Highly Ordered TiO2 Nanotube Arrays[J].Environmental Science & Technology: ES&T,200822(22):8547-8551. |
| [7] | Armelao L;Barreca D;Bottaro G;Gasparotto A;Maccato C;Maragno C;Tondello E;Stangar UL;Bergant M;Mahne D.Photocatalytic and antibacterial activity of TiO2 and Au/TiO2 nanosystems[J].Nanotechnology,200737(37):75709-1-75709-7-0. |
| [8] | 任坤;黄晶;贺小燕;叶卫平;程旭东;方丹丹;李华.热喷涂制备TiO2光催化涂层研究进展[J].表面技术,2015(4):66-73,83. |
| [9] | HUANJUN ZHANG;GUOHUA CHEN.Potent Antibacterial Activities of Ag/TiO2 Nanocomposite Powders Synthesized by a One-Pot Sol-Gel Method[J].Environmental Science & Technology: ES&T,20098(8):2905-2910. |
| [10] | Clemens Burda;Yongbing Lou;Xiaobo Chen;Anna C. S. Samia;John Stout;James L. Gole.Enhanced Nitrogen Doping in TiO_2 Nanoparticles[J].Nano letters,20038(8):1049-1051. |
| [11] | Su, R.;Tiruvalam, R.;He, Q.;Dimitratos, N.;Kesavan, L.;Hammond, C.;Lopez-Sanchez, J.A.;Bechstein, R.;Kiely, C.J.;Hutchings, G.J.;Besenbacher, F..Promotion of phenol photodecomposition over TiO _2 Using Au, Pd, and Au-Pd nanoparticles[J].ACS nano,20127(7):6284-6292. |
| [12] | 郝春静;湛含辉;王晓.硅烷偶联剂链长对纳米TiO2表面改性的影响[J].表面技术,2013(2):10-13. |
| [13] | MacWan, D.P.;Dave, P.N.;Chaturvedi, S..A review on nano-TiO2 sol-gel type syntheses and its applications[J].Journal of Materials Science,201111(11):3669-3686. |
| [14] | Sze Chi Chan;Mark A.Barteau.Preparation of Highly Uniform Ag/TiO_2 and Au/TiO_2 Supported Nanoparticle Catalysts by Photodeposition[J].Langmuir: The ACS Journal of Surfaces and Colloids,200512(12):5588-5595. |
| [15] | Chen, Shao;Li, Jian;Qian, Kun;Xu, Wei;Lu, Yang;Huang, Wei;Yu, Shu.Large scale photochemical synthesis of M@TiO_2 nanocomposites (M = Ag, Pd, Au, Pt) and their optical properties, CO oxidation performance, and antibacterial effect[J].Nano Research,20104(4):244-255. |
| [16] | 陈磊;齐意;木士春.通过Au修饰提高质子交换膜燃料电池PtCo合金催化剂稳定性[J].表面技术,2015(1):29-33. |
| [17] | Ye Cong;Feng Chen;Jinlong Zhang.Carbon and Nitrogen-codoped TiO_2 with High Visible Light Photocatalytic Activity[J].Chemistry Letters,20067(7):800-801. |
| [18] | Reddy KM;Baruwati B;Jayalakshmi M;Rao MM;Manorama SV.S-, N- and C-doped titanium dioxide nanoparticles: Synthesis, characterization and redox charge transfer study[J].International Journal of Quantum Chemistry,200511(11):3352-3358. |
| [19] | Marambio-Jones, C.;Hoek, E.M.V..A review of the antibacterial effects of silver nanomaterials and potential implications for human health and the environment[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,20105(5):1531-1551. |
| [20] | Baiju Vijayan;Nada M. Dimitrijevic;Tijana Rajh.Effect of Calcination Temperature on the Photocatalytic Reduction and Oxidation Processes of H ydrothermally Synthesized Titania Nanotubes[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201030(30):12994-13002. |
| [21] | Kumar R;Howdle S;Munstedt H.Polyamide/silver antimicrobials: effect of filler types on the silver ion release.[J].Journal of biomedical materials research, Part B. Applied biomaterials,20052(2):311-319. |
| [22] | A. Balamurugan;G. Balossier;D. Laurent-Maquin;S. Pina;A.H.S. Rebelo;J. Faure;J.M.F. Ferreira.An in vitro biological and anti-bacterial study on a sol-gel derived silver-incorporated bioglass system[J].Dental materials,200810(10):1343-1351. |
| [23] | 王振华;主沉浮;蔡元兴;姜茂芹.掺杂改性纳米TiO2光催化剂的作用机理及改性途径[J].材料导报,2006(z2):61-63. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%