以ZnSO_4和NaOH为原料,强碱性阴离子交换树脂为模板,采用反应性离子交换法一步合成了高纯纳米ZnO晶体,并运用扫描电子显微镜、X射线衍射和紫外-可见光谱等技术对样品进行了表征,初步探讨了合成机理.结果表明,制得的纳米ZnO晶体呈一维棒状,它在树脂表面的形成过程与znSO_4的初始浓度密切相关.该ZnO样品对光催化降解甲基橙具有较高的活性和循环使用性能.
Nano-crystalline ZnO particles were synthesized by a reactive ion exchange procedure using ZnSO_4 and NaOH as precursors and a strong basic anion exchange resin as substrate. The precursors and ZnO samples were characterized by scanning electron microscopy, X-ray diffraction, and UV-Vis spectroscopy. The ZnO particles were club shape, and the synthesis process depended on the reactant concentration of ZnSO_4 in the solution. The ZnO powders had high photocatalytic activity and stability for the gradation of methyl orange.
参考文献
| [1] | Zhang X;Zeng H B;Cai W P .[J].Materials Letters,2009,63:191. |
| [2] | Wang JM.;Gao L. .Wet chemical synthesis of ultralong and straight single-crystalline ZnO nanowires and their excellent UV emission properties[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2003(10):2551-2554. |
| [3] | Kim, NJ;Choi, SI;Lee, HJ;Kim, KJ .Nanostructures and luminescence properties of porous ZnO thin films prepared by sol-gel process[J].Current applied physics: the official journal of the Korean Physical Society,2009(3):643-646. |
| [4] | Tokumoto M S;Briois V;Santilli C V;Pulcinellis H .[J].Journal of Sol-Gel Science and Technology,2003,26:547. |
| [5] | Kim J H;Choi W C;Kim H Y;Kang Y Park Y K .[J].Powder Technology,2005,153:166. |
| [6] | Damonte L C;Zelis L A M;Soucase B M;Fenollosa M A H .[J].Powder Technology,2004,148:15. |
| [7] | Kahn ML;Monge M;Colliere V;Senocq F;Maisonnat A;Chaudret B .Size- and shape-control of crystalline zinc oxide nanoparticles: A new organometallic synthetic method[J].Advanced functional materials,2005(3):458-468. |
| [8] | Cho S;Jung S H;Lee K H .[J].Journal of Physical Chemistry C,2008,112:12769. |
| [9] | Kawakami M;Hartanto A B;Nakata Y;Okada T .[J].Japanese Journal of Applied Physics,2003,42:33. |
| [10] | Tani T;Madler L;Pratsinis S E .[J].Journal of Nanoparticle Research,2002,4:337. |
| [11] | Dai Z R;Pan Z W;Wang Z L .[J].Advanced Functional Materials,2003,13:9. |
| [12] | 李彦生;崔经国;柳志刚;常卉 .[P].CN 200710159006.3,2008. |
| [13] | Bricio O;Coca J;Sastre H .[J].Solvent Extraction and Ion Exchange,1992,10:381. |
| [14] | Kocaoba S;Akcin G .[J].Monatshefte fur Chemie,2008,139:873. |
| [15] | Coetzee J W .[J].Minerals Engineering,2003,16:519. |
| [16] | Dabrowski A;Hubicki Z;Podkoscielny P;Robens E .[J].Chemosphere,2004,56:91. |
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