在较温和的溶剂热条件下制备了一系列Al3+掺杂的ZnS纳米晶光催化剂.利用N2物理吸附、扫描电镜(SEM)、X射线衍射(XRD)、紫外可见漫反射光谱(UV-vis DRS)、红外光谱(FT-IR)和光致发光(PL)谱等技术对合成的样品进行了表征.考察了不同含量的Al3掺杂对ZnS的结晶度、比表面积、表面羟基、光吸收性能及其对不同染料的光催化降解性能的影响.结果表明,在140℃下合成的球状ZnS纳米晶具有较好的结晶度;Al3+掺杂在增加催化剂的比表面积的同时丰富了催化剂的表面羟基;此外,掺杂的Al3+可以明显抑制光生电子(e-)和空穴(h+)的复合,提高光催化反应效率.当掺杂最佳含量的6mol％ Al时,可使催化剂光催化降解染料酸性橙Ⅱ、亚甲基蓝和罗丹明B的降解率分别提高3.5、1.0和0.9倍.
参考文献
| [1] | 彭勇,罗昔贤,邢明铭.α-ZnS∶Mn纳米荧光粉热分解法制备及其发光性能[J].功能材料,2013(14):2051-2055. |
| [2] | 李丽华,谢瑞士,肖定全,朱建国.Fe掺杂ZnS半导体纳米晶的微乳液法制备及其性能研究[J].功能材料,2012(01):59-61,65. |
| [3] | Michael J. Casciato;Galit Levitin;Dennis W. Hess .Synthesis of Optically Active ZnS-Carbon Nanotube Nanocomposites in Supercritical Carbon Dioxide via a Single Source Diethyldithiocarbamate Precursor[J].Industrial & Engineering Chemistry Research,2012(36):11710-11716. |
| [4] | Kim, S.;Kim, T.;Kang, M.;Kwak, S.K.;Yoo, T.W.;Park, L.S.;Yang, I.;Hwang, S.;Lee, J.E.;Kim, S.K.;Kim, S.-W. .Highly luminescent InP/GaP/ZnS nanocrystals and their application to white light-emitting diodes[J].Journal of the American Chemical Society,2012(8):3804-3809. |
| [5] | 徐招弟,李越湘,彭绍琴.二元金属氢氧化物前驱体硫化法制备ZnS-CdS复合纳米粒子及其放氢活性[J].功能材料,2012(01):62-65. |
| [6] | Lucia Nasi;Davide Calestani;Tullo Besagni .ZnS and ZnO Nanosheets from ZnS(en)_(0.5) Precursor: Nanoscale Structure and Photocatalytic Properties[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2012(12):6960-6965. |
| [7] | Wei-Ta Chen;Yung-Jung Hsu .L-Cysteine-Assisted Growth of Core-Satellite ZnS-Au Nanoassemblies with High Photocatalytic Efficiency[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(8):5918-5925. |
| [8] | Zhang, Y.;Zhang, N.;Tang, Z.-R.;Xu, Y.-J. .Graphene transforms wide band gap ZnS to a visible light photocatalyst. the new role of graphene as a macromolecular photosensitizer[J].ACS nano,2012(11):9777-9789. |
| [9] | Min Wang;Guang Tao Fei;Xiao Guang Zhu .Density-Controlled Homoepitaxial Growth of ZnS Nanowire Arrays[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2009(11):4335-4339. |
| [10] | Wang ZQ;Liu XD;Gong JF;Huang HB;Gu SL;Yang SG .Epitaxial Growth of ZnO Nanowires on ZnS Nanobelts by Metal Organic Chemical Vapor Deposition[J].Crystal growth & design,2008(11):3911-3913. |
| [11] | Chen XJ.;Xu HF.;Xu NS.;Zhao FH.;Lin WJ.;Lin G.;Fu YL.;Huang ZL. Wang HZ.;Wu MM. .Kinetically controlled synthesis of wurtzite ZnS nanorods through mild thermolysis of a covalent organic-inorganic network[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2003(9):3100-3106. |
| [12] | Huang, X.;Wang, M.;Willinger, M.-G.;Shao, L.;Su, D.S.;Meng, X.-M. .Assembly of three-dimensional hetero-epitaxial ZnO/ZnS core/shell nanorod and single crystalline hollow ZnS nanotube arrays[J].ACS nano,2012(8):7333-7339. |
| [13] | Han Zhou;Tongxiang Fan;Di Zhang .Novel Bacteria-Templated Sonochemical Route for the in Situ One-Step Synthesis of ZnS Hollow Nanostructures[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(9):2144-2146. |
| [14] | A mild solvothermal route for preparation of cubic-like CuInS_2 crystals[J].Materials Letters,2009(23):2022-2024. |
| [15] | 余长林,温和瑞,YU Jimmy C.聚乙二醇法在温和条件下制备不同结构的磁性Fe_3O_4纳米晶[J].纳米技术与精密工程,2010(02):161-166. |
| [16] | 余长林,杨凯,范采凤,周晚琴.溶剂热合成Sn掺杂的纳米ZnO光催化剂及其光催化性能[J].纳米技术与精密工程,2011(06):499-503. |
| [17] | 魏智强,张歌,闫晓燕,刘立刚,武晓娟,冯旺军,杨华.溶剂热法制备双螺旋ZnS纳米结构研究[J].人工晶体学报,2012(01):90-93. |
| [18] | 吕庆荣,方庆清,刘艳美.溶剂热法合成纳米结构四氧化三铁空心微球磁性研究[J].人工晶体学报,2011(06):1557-1562. |
| [19] | 鞠剑峰,施新宇,吴东辉.乙醇/水混合溶剂热法制备不同形貌的CuO晶体[J].人工晶体学报,2010(03):776-779. |
| [20] | 杨凯,余长林,张丽娜,余济美.BiOCl/ZnO异质结型复合光催化剂的水热合成及其光催化性能[J].人工晶体学报,2012(01):171-176. |
| [21] | 余长林,杨凯,吴琼,YU Jimmy C,樊启哲,许永章.Zr-Al共掺对ZnO光催化剂结构和催化性能的影响[J].硅酸盐学报,2012(03):396-401. |
| [22] | 单润强,陈拥军,班超,谢志强.络合凝胶法合成Al掺杂纳米ZnO及其光催化性能[J].环境工程学报,2011(07):1486-1490. |
| [23] | Zou, X.-X.;Li, G.-D.;Zhao, J.;Wang, P.-P.;Wang, Y.-N.;Zhou, L.-J.;Su, J.;Li, L.;Chen, J.-S. .Light-driven transformation of ZnS-cyclohexylamine nanocomposite into Zinc hydroxysulfate: A photochemical route to inorganic nanosheets[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2011(18):9106-9113. |
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%