| 固相反应-微波水热合耦合制备单分散纳米硫化锌微球及性能测定 |
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| 引用本文： | 陈志红,白波,王莉平.固相反应-微波水热合耦合制备单分散纳米硫化锌微球及性能测定[J].西安文理学院学报,2008,11(4):8-13. |
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| 作者姓名： | 陈志红 白波 王莉平 |
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| 作者单位： | 长安大学环境科学与工程学院,陕西西安710054 |
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| 基金项目： | 国家发展改革委员会资助项目，长安大学校科研和教改项目 |
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| 摘 要： | 以醋酸锌和硫化钠为原料，采用PEG-400晶形控制剂、固相反应-微波水热耦合技术快速获得了单分散纳米硫化锌微球．利用XRD、TEM、FT—IR及UV—Vis对产品进行了结构表征，结果表明获得的纳米硫化锌微球属于立方形晶相（闪锌矿），微球粒径为100-150／lm，分散性好，纯度高．分析了PEG-400分子控制形成单分散纳米硫化锌微球的机理．与传统水浴热法相比，微波水热可将反应所需时间从8．0h缩短到1．0h，且有助于ZnS前驱物的快速晶化。酸性大红3R水溶液的光催化降解活性测试结果证实，与传统水热法获得的纳米ZnS微球相比较，微波水热获得的纳米ZnS微球表现出了更高的催化活性．
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| 关 键 词： | 纳米材料 ZnS 固态反应 微波水热 |
Preparation and Characterization of Mono-dispersed ZnS Microspheres by Coupling Method of Solid Reaction and Microwave-hydrothermal |
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| CHEN Zhi-hong,BAI Bo,WANG Li-ping.Preparation and Characterization of Mono-dispersed ZnS Microspheres by Coupling Method of Solid Reaction and Microwave-hydrothermal[J].Journal of Xi‘an University of Arts & Science:Natural Science Edition,2008,11(4):8-13. |
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| Authors: | CHEN Zhi-hong BAI Bo WANG Li-ping |
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| Institution: | (School of Environmental Science and Engineering, Chang＇an University, Xi＇an 710054, China) |
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| Abstract: | Mono - dispersed ZnS micro spheres are successfully prepared via a facile and rapid coupling method of solid reaction and microwave-hydrothermal. The as-prepared products are characterized by XRD, TEM, FT-IR, and UV-Vis, respectively. The experimental results show that the structure of as-obtained ZnS product belongs to cubic crystal phase （blend phase）, and the micro spheres possess a uniform size with the diameter in a range of 100 - 150 nm. The morphology is like a sphere. The micro spheres have a good disparity and high purity. Meanwhile, the possible growth mechanisms for the formation of sphere-like structure ZnS are proposed with the presence of polyethylene glycol -400. Comparing with the conventional hydrothermal method, microwave hydrothermal progress not only has reduced the reaction from 8.0 h to 1.0 h, but also has made the precursory substrate of ZnS well-defined crystallization quickly. The test of photo catalytic performance demonstrated that ZnS products prepared by above microwave-hydrothermal route exhibits a higher catalytic activity than those of other parallel samples for the degradation of model 3R dye aqueous. |
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| Keywords: | ZnS |
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