以硝酸铅和钨酸钠为原料，环糊精作为表面活性剂，利用室温水溶液法制备出了海参状 PbWO4微晶。用粉末 X 射线衍射(XRD )、X 射线能谱仪(EDX)、扫描电子显微镜(SEM)等技术对样品进行了表征。通过对实验条件的探索，发现反应温度、pH 值及表面活性剂的浓度等对产物的形貌有较大的影响，并且提出了海参状微晶的3步形成机理。此外，探索了所制样品的光催化性能，发现其对罗丹明有很好的光催化降解效果。
Trepang-like PbWO4 microcrystals had been prepared by an aqueous solution method at room temper-ature with Pb(NO3 )2 and Pb(NO3 )2 as raw materials andβ-CD as surfactant.The products were characterized by powder X-ray diffraction (XRD),energy-dispersive X-ray spectrometry (EDX),scanning electron microsco-py (SEM).The effects of reaction conditions have also been investigated,which showed that the reaction tem-perature,pH and the concentration of surfactant have great influence to the morphology of products.A three-step formation mechanism was proposed.Besides,the photocatalytic performance of the products were studied which exhibited good photocatalytic effect toward rhodamine.
参考文献
| [1] | 黄仁和,王力.纳米石墨薄片及聚合物/石墨纳米复合材料制备与功能特征研究[J].功能材料,2005(01):6-10,14. |
| [2] | Jeon S;Lee C;Tang J Y et al.Growth of serpentine carbon nanotubes on quartz substrates and their electrical properties[J].Nano Res,2008,1:427-433. |
| [3] | Tian, P.;Zhang, Y.;Senevirathne, K.;Brock, S.L.;Dixit, A.;Lawes, G.;Billinge, S.J.L. .Diverse structural and magnetic properties of differently prepared MnAs nanoparticles[J].ACS nano,2011(4):2970-2978. |
| [4] | 李元,李庆,吴会杰,张进,林华,张宇.化学水浴法制备CuS纳米花状球及其光学性能研究[J].功能材料,2013(03):317-321. |
| [5] | Hara K.;Kobayashi M.;Nikl M.;Takano H.;Tanaka M.;Tanji K. Usuki Y.;Ishii M. .La-doped PbWO4, scintillating crystals grown in large ingots[J].Nuclear Instruments and Methods in Physics Research, Section A. Accelerators, Spectrometers, Detectors and Associated Equipment,1998(2/3):325-331. |
| [6] | Sundaram R;Nagaraja K S .Electrical and humidity sens-ing properties of lead(Ⅱ)tungstate-tungsten(Ⅵ)oxide and zinc(Ⅱ)tungstate-tungsten(Ⅵ)oxide composites[J].Materials Research Bulletin,2004,9:581-590. |
| [7] | Kloprogge J Th;Weier M L;Duong L V et al.Micro-wave-assisted synthesis and characterisation of divalent metal tungstate nanocrystalline minerals:ferberite,hübnerite,sanmartinite,scheelite and stolzite[J].Materials Chemistry and Physics,2004,88:438-443. |
| [8] | Wang X G;Hang Y L;Xie J J .Improvement of com-bined doping among(Mo6+,Gd3+,PbF2)on lumines-cence of PbWO4 and spectroscopic analyses[J].Journal of Functional Materials,2007,38:78-82. |
| [9] | Lei, F;Yan, B;Chen, HH;Zhang, Q;Zhao, JT .Surfactant-Assisted Hydrothermal Synthesis, Physical Characterization, and Photoluminescence of PbWO4[J].Crystal growth & design,2009(8):3730-3736. |
| [10] | Lei Huo;Ying Chu .Controlled synthesis of PbWO_4 crystals via microemulsion-based solvothermal method[J].Materials Letters,2006(21/22):2675-2681. |
| [11] | 朱小娜,周元林,杨文彬,李迎军,董发勤,罗世凯.油酸修饰钨酸铅纳米晶的制备及超疏水性能研究[J].功能材料,2011(04):696-699. |
| [12] | Tang H;Li C S;Song H J et al.Controllable synthe-sis,characterization and growth mechanism of three-di-mensional hierarchical PbWO4 microstructures[J].Cryst Eng Comm,2011,13:5119-5124. |
| [13] | Chen D;Shen G Z;Tang K B et al.AOT-microemul-sions-based formation and evolution of PbWO4 crystals[J].Journal of Physical Chemistry B,2004,108:11280-11284. |
| [14] | Geng J;Du D J;Zhu J J et al.Antimony(Ⅲ)-doped PbWO4 crystals with enhanced photoluminescence via a shape-controlled sonochemical route[J].Journal of Physical Chemistry B,2006,110:13777-13785. |
| [15] | Guizhen Wang;Gengping Wan .Structures and luminescence properties of PbWO_4 microcrystals prepared by the microwave irradiation method[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):505-509. |
| [16] | Xiao-Luo Hu;Ying-Jie Zhu .Morphology Control of PbWO_4 Nano-and Microcrystals via a Simple,Seedless,and High-Yield Wet Chemical Route[J].Langmuir: The ACS Journal of Surfaces and Colloids,2004(4):1521-1523. |
| [17] | Biao Liu;Shu-Hong Yu;Linjie Li;Qiao Zhang;Fen Zhang;Ke Jiang .Morphology Control of Stolzite Microcrystals with High Hierarchy in Solution[J].Angewandte Chemie,2004(36):4745-4750. |
| [18] | Wang F F;Li C S et al.Morphological control of Pb-WO4 crystals in the ethanol-water mixed system with an anionic surfactant[J].Journal of Alloys and Compounds,2010,490:372-376. |
| [19] | Guizhen Wang;Chuncheng Hao .Fast Synthesis And Morphology Control Of Lead Tungstate Microcrystals Via A Microwave-assisted Method[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2009(2):418-421. |
| [20] | Shen, Y.;Zhang, Y.;Chen, Y.;Li, S.;Zhang, Q.;Xie, A. .A novel biological strategy for morphology control of PbWO_4 crystals in tomato extract[J].Colloids and Surfaces, B. Biointerfaces,2011(2):284-290. |
| [21] | Wang Y G;Yang L L et al.Controlled synthesis of Pb-WO4 dendrites by a simple sonochemical method[J].Journal of Alloys and Compounds,2013,554:86-88. |
| [22] | R. Lee Penn;Jillian F. Banfield .Imperfect Oriented Attachment: Dislocation Generation in Defect-Free Nanocrystals[J].Science,1998(5379):969-971. |
| [23] | Roosen AR.;Carter WC. .Simulations of microstructural evolution: anisotropic growth and coarsening[J].Physica. A, Theoretical and Statistical Physics,1998(1/2):232-247. |
| [24] | Wang, Y.;Li, Q.;Nie, M.;Li, X.;Li, Y.;Zhong, X. .High-yield room temperature route to copper sulfide hollow nanospheres and their electrochemical properties[J].Nanotechnology,2011(30):305401-1-305401-6. |
| [25] | Qing Li;Vivian Wing-Wah Yam .Redox Luminescence Switch Based on Energy Transfer in CePO4:Tb3+ Nanowires[J].Angewandte Chemie,2007(19):3486-3489. |
| [26] | Hongbo Fu;Chengsi Pan;Liwu Zhang;Yongfa Zhu .Synthesis, characterization and photocatalytic properties of nanosized Bi_2WO_6, PbWO_4 and ZnWO_4 catalysts[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2007(4):696-706. |
| [27] | 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(03):75-77. |
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%