采用简单的一步水热法合成了SnO/Sn3 O4异质结构花状微球.利用 X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)、表面积分析仪和紫外-可见吸收光谱(UV-Vis)等测试手段对其形貌、结构、比表面积和光学性质进行了分析,并以罗丹明 B(RhB)为模型污染物研究了样品的光催化性能.结果表明,花状微球由大量 SnO/Sn3 O4异质结构组成,比表面积为52．6 m2/g；样品中SnO 和Sn3 O4的禁带宽度分别为2．90和2．51 eV,同时对罗丹明B有较好的光催化降解特性.
Flower-like microspheres were synthesized by a simple one-step hydrothermal method.The crystal structure,morphology,composition,specific surface area and optical property of the samples were character-ized by X-ray diffraction (XRD),scanning electron microscopy (SEM),transmission electron microscopy (TEM),high resolution transmission electron microscopy (HRTEM),automatic surface area analyzer and UV-Vis absorption spectrum.Photocatalytic activity was evaluated by degradation of rhodamine B(RhB)solution. The results showed that the flower-like microspheres were composed of SnO/Sn3 O4 heterostructures.The spe-cific surface area of the sample was 52.6 m2/g.The band gap of SnO and Sn3 O4 in the samples were evaluated as 2.90 and 2.51 eV,respectively.Finally,SnO/Sn3 O4 heterostructures semiconductors performed the efficiency degradation of RhB.
参考文献
| [1] | W. Guo;L. Fu;Y. Zhang;K. Zhang;L. Y. Liang;Z. M. Liu;H. T. Cao;X. Q. Pan.Microstructure, optical, and electrical properties of p-type SnO thin films[J].Applied physics letters,20104(4):042113-1-042113-3. |
| [2] | A. Odani;A. Nimberger;B. Markovsky;E. Sominski;E. Levi;V.G. Kumar;M. Motiei;A. Gedanken;P. Dan;D. Aurbach.Development and testing of nanomaterials for rechargeable lithium batteries[J].Journal of Power Sources,2003119/121(119/121):517-521. |
| [3] | Aurbach D.;Nimberger A.;Markovsky B.;Levi E.;Sominski E.;Gedanken A..Nanoparticles of SnO produced by sonochemistry as anode materials for rechargeable lithium batteries[J].Chemistry of Materials,200210(10):4155-4163. |
| [4] | Elvira Fortunato;Raquel Barros;Pedro Barquinha;Vitor Figueiredo;Sang-Hee Ko Park;Chi-Sun Hwang;Rodrigo Martins.Transparent p-type SnO_(x) thin film transistors produced by reactive rf magnetron sputtering followed by low temperature annealing[J].Applied physics letters,20105(5):052105-1-052105-3. |
| [5] | Rodrigo Martins;Arokia Nathan;Raquel Barros;Luis Pereira;Pedro Barquinha;Nuno Correia;Ricardo Costa;Arman Ahnood;Isabel Ferreira;Elvira Fortunato.Complementary Metal Oxide Semiconductor Technology With and On Paper[J].Advanced Materials,201139(39):4491-4496. |
| [6] | Hongjuan Wang;Fengqiang Sun;Yu Zhang.Photochemical growth of nanoporous SnO2 at the air-water interface and its high photocatalytic activity[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201027(27):5641-5645. |
| [7] | Nasr C.;Hotchandani S.;Kamat PV..PHOTOELECTROCHEMICAL BEHAVIOR OF COUPLED SNO2-VERTICAL-BAR-CDSE NANOCRYSTALLINE SEMICONDUCTOR FILMS[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,19971/2(1/2):201-207. |
| [8] | Shengwei Liu;Guocheng Huang;Jiaguo Yu.Porous Fluorinated SnO2 Hollow Nanospheres: Transformative Self-assembly and Photocatalytic Inactivation of Bacteria[J].ACS applied materials & interfaces,20144(4):2407-2414. |
| [9] | Liu ZY;Sun DDL;Guo P;Leckie JO.An efficient bicomponent TiO2/SnO2 nanofiber photocatalyst fabricated by electrospinning with a side-by-side dual spinneret method[J].Nano letters,20074(4):1081-1085. |
| [10] | Uddin, M.T.;Nicolas, Y.;Olivier, C.;Toupance, T.;Servant, L.;Müller, M.M.;Kleebe, H.-J.;Ziegler, J.;Jaegermann, W..Nanostructured SnO _2-ZnO heterojunction photocatalysts showing enhanced photocatalytic activity for the degradation of organic dyes[J].Inorganic Chemistry,201214(14):7764-7773. |
| [11] | Li L;Yang YW;Huang XH;Li GH;Zhang LD.Fabrication and characterization of single-crystalline ZnTe nanowire arrays[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200525(25):12394-12398. |
| [12] | Liang Li;You-Wen Yang;Guang-Hai Li;Li-De Zhang.Conversion of a Bi Nanowire Array to an Array of Bi-Bi2O3 Core-Shell Nanowires and Bi2O3 Nanotubes[J].Small,20064(4):548-553. |
| [13] | Wang, CH;Shao, CL;Zhang, XT;Liu, YC.SnO2 Nanostructures-TiO2 Nanofibers Heterostructures: Controlled Fabrication and High Photocatalytic Properties[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,200915(15):7261-7268. |
| [14] | Zheng, LR;Zheng, YH;Chen, CQ;Zhan, YY;Lin, XY;Zheng, Q;Wei, KM;Zhu, JF.Network Structured SnO2/ZnO Heterojunction Nanocatalyst with High Photocatalytic Activity[J].Inorganic Chemistry,20095(5):1819-1825. |
| [15] | Hanan H. Mohamed;Detlef W. Bahnemann.The role of electron transfer in photocatalysis: Fact and fictions[J].Applied Catalysis. B, Environmental,2012:91-104. |
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