令可生物降解的羧甲基纤维素（CMC）和Eu3＋在微波加热条件下反应,制备CMC/Eu纳米复合材料。用FT-IR、SEM、AFM、荧光光谱表征其结构、表面形貌和发光性质,并探讨pH值对其粒径大小及分布的影响。结果显示,在实验条件下纳米化后,其荧光强度大幅度提高;粒径在150～500nm范围内;pH值增大,粒径变小,分布均匀;pH值=13.4时粒径最小,分布最均。
CMC/Eu nanocomposites were synthesized under microwave-assisted by reacting with Eu3＋ and CMC,a kind of biodegradable polymer.The structure,surface topography and luminance were characterized by FT-IR,SEM,AFM and fluorescence spectrum.Effect of pH on sizes and distribution of CMC/Eu nanocomposites was also discussed in detail.The results showed that fluorescence intensities of CMC/Eu nanocomposites was much stronger than that of bulk CMC/Eu;particle sizes of CMC/Eu nanocomposites were from 150 to 500nm;moreover,the particle sizes decreasing and particle distribution were more uniformly with pH increasing.The particle size was smallest and well-distributed when pH is 13.4.
参考文献
| [1] | Guosheng Wu;Lide Zhang;Baochang Cheng;Ting Xie;Xiaoyou Yuan .Synthesis of Eu_2O_3 Nanotube Arrays through a Facile Sol-Gel Template Approach[J].Journal of the American Chemical Society,2004(19):5976-5977. |
| [2] | Zheng-Yin Yang;Ru-Dong Yang;Fa-Shen Li;Kai-Bei Yu .Crystal structure and antitumor activity of some rare earth metal complexes with Schiff base[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,2000(26/27):2599-2604. |
| [3] | An-Wu Xu;Yuan Gao;Han-Qin Liu .The preparation, characterization, and their photocatalytic activities of rare-earth-doped TiO_2 nanoparticles[J].Journal of Catalysis,2002(2):151-157. |
| [4] | Sengupta SK;Pandey OP;Rai A;Sinha A .Synthesis, spectroscopic, thermal and antifungal studies on lanthanum(III) and praseodymium(III) derivatives of 1,1-diacetylferrocenyl hydrazones[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2006(1):139-142. |
| [5] | Anita R;Sengupta S K;Pandey O P .Lanthanum(Ⅲ)and praseodymium(Ⅲ)derivatives with dithioearbamates derived from a-amino acids[J].Spectrochimica Acta Part A:Molecular and Biomolecular Spectroscopy,2006,64(03):789-794. |
| [6] | 叶君,熊犍.水溶性纤维素醚/Eu（Ⅲ）的合成及发光特性[J].功能材料,2005(10):1572-1574,1577. |
| [7] | Shanshan Tang;ChangluShao;YichunLiu;RixiangMu .Electrospun nanofibersofpoly(acrylonitrile)/Eu3+ and their photoluminescenceproperties[J].The journal of physics and chemistry of solids,2010(3):273-278. |
| [8] | Parra DF.;Brito HF.;Matos JD.;Dias LC. .Enhancement of the luminescent intensity of the novel system containing Eu3+-beta-diketonate complex doped in the epoxy resin[J].Journal of Applied Polymer Science,2002(12):2716-2726. |
| [9] | ZHANG Xiaoping,WEN Shipeng,HU Shui,ZHANG Liqun,LIU Li.Electrospinning preparation and luminescence properties of Eu(TTA)3phen/polystyrene composite nanofibers[J].稀土学报（英文版）,2010(03):333-339. |
| [10] | Shan Shan Tang,Chang Lu Shao,Shou Zhu Li.Electrospun nanofibers of poly(vinyl pyrrolidone)/Eu3+ and its photoluminescence properties[J].中国化学快报（英文版）,2007(04):465-468. |
| [11] | Zhang H;Song HW;Yu HQ;Bai X;Li SW;Pan GH;Dai QL;Wang T;Li WL;Lu SZ .Electrospinning preparation and photoluminescence properties of rare-earth complex/polymer composite fibers[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(17):6524-6527. |
| [12] | Teotonio EES;Brito HF;Felinto MCFC;Thompson LC;Young VG;Malta OL .Preparation, crystal structure and optical spectroscopy of the rare earth complexes (RE3+ = Sm, Eu, Gd and Tb) with 2-thiopheneacetate anion[J].Journal of Molecular Structure,2005(1/3):85-94. |
| [13] | Reineke, Theresa M.;Fehr, Michael;Kelley, Douglas;Yaghi, O.M.;Eddaoudi, Mohamed .From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites[J].Journal of the American Chemical Society,1999(8):1651-1657. |
| [14] | Ma L.;Fowman BM.;Lin WB.;Evans OR. .Luminescent lanthanide coordination polymers[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,1999(25):5837-5840. |
| [15] | Seo J S;Whang D;Lee H et al.A homoehiral metal-organic porous material for enantioseleetive separation and catalysis[J].Nature,2000,404:982-986. |
| [16] | Xiong J ian;Ye J un .Synthesis and characterization of celtulose ethers/Eu(Ⅲ)[J].Journal of Applied Polymer Science,2005,95(03):743-747. |
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