在柠檬酸、STAB、硫脲、乙二胺4种表面活性剂修饰下，采用水热法合成出4种形貌的 Bi2 WO6片层纳米晶，探究了 Bi2 WO6片层形貌与其光致发光性能之间的关系。结果表明，阳离子表面活性剂乙二胺和硫脲有利于形成规整排列的 Bi2 WO6片层纳米晶，其具备较大的 BET 而有利于光之发光强度的提高；而阴离子表面活性剂柠檬酸与 STAB 不易促进规整排列的Bi2 WO6片层纳米晶形貌的形成，从而抑制了光致发光性能的改善。
Four kinds of morphologies of Bi2 WO6 flaky nanocrystals were synthesized by hydrothermal with dif-ferent surfactants (citric acid,STAB,thiourea,and ethlendiamine).Futhermore,the relations between the morphologies and photoluminescence of Bi2 WO6 flaky nanocrystals were also explored.The results indicated that the cationic surfactants (thiourea and ethlendiamine)were conducive to obtain the inerratic Bi2 WO6 flaky nanocrystals,with large BET for the intensity increases in the photoluminescence.Conversely,the inerratic Bi2 WO6 flaky nanocrystals were obtained with anionic surfactants (citric acid and STAB),which restrains the intensity of photoluminescence.
参考文献
| [1] | Yoneda Y;Kohara S;Takeda H et al.Local structure a-nalysis of Bi2 WO6[J].Japanese Journal of Applied Phys-ics,2012,51(9):09LE06. |
| [2] | Wen-Lian William Lee;Shiuh-Tsuen Huang;Jia-Lin Chang.Photodegradation of CV over nanocrystalline bismuth tungstate prepared by hydrothermal synthesis[J].Journal of molecular catalysis, A. Chemical,2012:80-90. |
| [3] | I. J. Beyerlein;A. Caro;M. J. Demkowicz;N. A. Mara;A. Misra;B. P. Uberuaga .Radiation damage tolerant nanomaterials[J].Materials Today,2013(11):443-449. |
| [4] | Takeda H;Nishida T;Okamura S et al.Crystal growth of bismuth tungstate Bi2 WO6 by slow gle cooling method using borate fluxes[J].Journal of the European Ceramic Society,2005,25:2731-2734. |
| [5] | Peisong Tang;Haifeng Chen;Feng Cao.One-step preparation of bismuth tungstate nanodisks with visible-light photocatalytic activity[J].Materials Letters,2012:171-173. |
| [6] | S. Murcia-Lopez;M.C. Hidalgo;J.A. Navio.Photocatalytic activity of single and mixed nanosheet-like Bi2WO6 and TiO2 for Rhodamine B degradation under sunlike and visible illumination[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2012:34-41. |
| [7] | Tang Junwang;Zou Zhigang;Ye Jinhua .Photocatalytic decomposition f organic contaminants by Bi2 WO6 under visible lightirradiation[J].Catlysis Etters,2004,92(1-2):53-56. |
| [8] | 宁婕妤,刘邦武,夏洋,李超波.光诱导液相沉积 Ni/Cu 应用于晶硅电池栅线的制备[J].功能材料,2014(01):1147-1152. |
| [9] | Huang Yi;Shen Yue;Wu Jihuai et al.Synthesis and characterization of fower-like Bi2 WO6 and its phtocatalyti-cactvity[J].Journal of Functional Materials,2010,41(1):52-56. |
| [10] | Amano F;Nogami K;Tanaka M et al.Correlation be-tween surface area and photocatalytic activity for acetal-dehyde decomposition over bismuth tungstate particles with a hierarchical structure[J].J Physc Chem C,2009,119:9842-9847. |
| [11] | Ma Dekun;Huang Shaoming;Chen Wenxiu et al.Self-assembled three-dimendsional hierarchical umbiicate Bi2 WO6 microspheres from nanplaes:controlled synthe-sis,photocatalytic activities and wettability[J].Lagmuir,2010,2(10):7174-7180. |
| [12] | Jinyun He;Weimin Wang;Fei Long .Hydrothermal synthesis of hierarchical rose-like Bi_2WO_6 microspheres with high photocatalytic activities under visible-light irradiation[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2012(12):967-974. |
| [13] | Chunxiao Xu;Xiao Wei;Zhaohui Ren;Ying Wang;Gang Xu;Ge Shen;Gaorong Han .Solvothermal preparation of Bi_2WO_6 nanocrystals with improved visible light photocatalytic activity[J].Materials Letters,2009(26):2198-2200. |
| [14] | 邢光建,李钰梅,赵铮,王怡,武光明.不同形貌的钨酸铋纳米材料的制备及其光催化性能[J].人工晶体学报,2010(05):1265-1271. |
| [15] | Zhang SC;Zhang CA;Man Y;Zhu YF .Visible-light-driven photocatalyst of Bi2WO6 nanoparticles prepared via amorphous complex precursor and photocatalytic properties[J].International Journal of Quantum Chemistry,2006(1):62-69. |
| [16] | Tang JW;Ye JH .Correlation of crystal structures and electronic structures and photocatalytic properties of the W-containing oxides[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2005(39):4246-4251. |
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