以硝酸铅和硫代乙酰胺为前体,十二烷基苯磺酸钠(SDBS)扮演了前体和表面活性剂的双重角色,制备出硫化铅纳米带.采用透射电子显微镜、X射线衍射和光致发光对所制备的纳米带进行了表征.结果表明,中间产物PbSO4在水热条件下对PbS纳米带的进一步形成主要起到模板作用.进一步考察了纳米带形成机理,结果表明,中间产物PbSO4对表面活性剂是有制约性的,而当改变中间产物保持条件不变的情况下,模板效应失控,只能得到不规则的微晶体.实验结果表明,制备硫化铅纳米带反应速度较为缓慢,易于控制,为制备不同形貌纳米带提供了一种有效方法.
PbS nanobelts were synthesized by a facile hydrothermal method using lead nitrate,thioacetamide and dodecyl benzene sulfonate(SDBS) as raw materials.SDBS played a dual role as both the starting material and surfactant in the reaction.The as-prepared nanobelts were characterized by transmission electron microscopy and X-ray diffraction.The photoluminescence property of the nanobelts was also studied. It was concluded that the intermediate PbSO4 could act as a template for the growth of PbS nanobelts under hydrothermal conditions.The formation mechanism of nanobelts was further investigated.The results indicated that the intermediate PbSO4 could paly restriction effect on the surfactant (SDBS).When PbSO4 was replaced by other lead composite,the surfactant would lose its role and irregular micro-crystals were obtained consequently.The formation of nanobelts was readily controlled under a slow reaction speed.The result presented here may open an efficient way to synthesizing nanobelts with different morphologies.
参考文献
| [1] | Saleh M B,Hassan S S M,Abdel Gaber A A,et al.Novel Potentiometric Membrane Sensor for Selective Determination of Aluminum(Ⅲ) Ions[J].Anal Chim Acta,2001,434(2):247-253. |
| [2] | Pan Z,Dai Z R,Wang Z L.Nanobelts of Semiconducting Oxides[J].Science,2001,291:1947. |
| [3] | Wu X S,Pan L J,Zou G,et al.Preparation of PbS/poly(acrylic acid) Nanocrystal Micropattems by Soft Lithography[J].Chinese Chem Phys,2004:641-644. |
| [4] | Yun D Q,Feng W,Wu H C,et al.Efficient Conjugated Polymer-ZnSe and-PbSe Nanocrystals Hybrid Photovoltaic Cells Through Full Solar Spectrum Utilization[J].Sol Energy Mater Sol Cells,2009,93(8):1208-1213. |
| [5] | John F C,Silva A P,David C,et al.Luminescent Sensors and Switches in the Early 21st Century[J].Tetrahedron,2005,61(36):8551-8588. |
| [6] | Yang X Y,Xiang W D,Zhao H J,et al.Third-order Nonlinear Optical Properties of Bi2S3 Nanoerystals Doped in Sodium Borosilicate Glass Studied with Z-Scan Technique[J].Mater Res Bull,2011,46(3):355-360. |
| [7] | Li C,Shi G,Song Y L,et al.Third-order Nonlinear Optical Properties of Bi2S3 and Sb2S3 Nauorods Studied by the Z-Scan Technique[J].Phys Chem Solids,2008,69(7):1829-1834. |
| [8] | Sarai T D,Reisfeld R,Sashebiuk A,et al.Synthesis and Characterization of PbS Nanorods and Nanowires[J].Lowdimensional Systems and Nanostructures,2007,37 (1-2):173-177. |
| [9] | Shu F W,Gu F,Meng K L.Sonochemical Synthesis of PbS Nanocubes,Nanorods and Nanotubes[J].Cryst Growth,2006,289(2):621-625. |
| [10] | Maria O,Epameinondas L,Tasoula K L,et al.Formation Mechanism of Nanotubes Comprising Layers of PbS Nanoparticles in Polymer Suffactant Solutions[J].Colloid Interface Sci,2006,302 (1):170-177. |
| [11] | Su C Y,Shao C L,Liu Y C,et al.Synthesis of Heteroarchitectures of PbS Nanostructures Well-erected on Electrospun TiO2 Nanofibers[J].Colloid Interface Sci,2010,346(2):324-329. |
| [12] | Song X C,Zhao Y,Zheng Y F.Hydrothermal Synthesis of Tungsten Oxide Nanobelts[J].Mater Lett,2006,60 (28):3405-3408. |
| [13] | Dong L H,Chu Y,Liu Y,et al.Surfactant-assisted Fabrication PbS Nanorods,Nanobelts,Nanovelvet-flowers and Dendritic Nanostructures at Lower Temperature in Aqueous Solution[J].Colloid Interface Sci,2006,301 (2):503-510. |
| [14] | Ni Y H,Wei X W,Hong J M,et al.Hydrothermal Preparation of PbS Crystals and Shape Evolution[J].Mater Res Bull,2007,42(1):17-26. |
| [15] | Acosta M F,Lerma M S,Cháavez H A,et al.Excitonic Absorption of Spherical PbS Nanoparticles in Zeolite A[J].Solid State Commun,2003,128(11):407-411. |
| [16] | Wang S Q,Pan A L,Yin H Y,et al.Synthesis of PbS Microcrystals via a Hydrothermal Process[J].Mater Lett,2006,60(9-10):1242-1246. |
| [17] | Luo Z J,Li H M,Xia J X,et al.Microwave-assisted Synthesis of Barium Tungstate Nanosheets and Nanobelts by Using Polymer PVP Micelle as Templates[J].Mater Lett,2007,61 (8-9):1845-1848. |
| [18] | Quan Z W,Li C X,Zhang X M,et al.Polyol-mediated Synthesis of PbS Crystals:Shape Evolution and Growth Mechanism[J].Cryst Growth Des,2008,10(8):2384-2392. |
| [19] | Hou Z Y,Wang L L,Lian H Z,et al.Preparation and Luminescence Properties of Ce3+ and/or Tb3+ Doped LaPO4 Nanofibers and Microbelts by Electrospinning[J].Solid State Chem,2009,10 (182):698-708. |
| [20] | Ramin Y S,Burhanuddin K.The Effects of Annealing Temperature on Structural and Optical Properties of S-Doped ZnO Nanobelts[J].Solid State Sci,2010,12(2):252-256. |
| [21] | Khabibulakh K,Andrei K,Fang M H,et al.Characterization of Individual SnO2 Nanobelts with STM[J].Surf Sci,2008,602(14):112-114. |
| [22] | Zhou Z Z,Deng Y L.Solution Synthesis of Magnesium Hydroxide Sulfate Hydrate Nanobelts Using Sparingly Soluble Carbonate Salts as Supersaturation Control Agents[J].Colloid Interface Sci,2007,316(1):183-188. |
| [23] | Jin H,Cheng D,Li J X,et al. Facile Synthesis of Zirconium Trisulfide and Hafnium Trisulfide Nanobelts:Growth Mechanism and Raman Spectroscopy[J].Solid 'State Sci,2011,13 (5):1166-1171. |
| [24] | Brault H S,Martin J S.Properties and High-pressure Behavior of a Ternary Lead Oxide Pb2MnO4[J].Solid State Sci,2011,13(2):326-330. |
| [25] | Colm M,Holmes J D,Morris M A.Improved Photocatalytic Degradation Rates of Phenol Achieved Using Novel Porous ZrO2-doped TiO2 Nanoparticulate Powders[J].Hazard Mater,2011,193:120-127 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%