| 双相分散聚乙烯吡咯烷酮包覆氧化锌纳米粒子的微乳液法制备,结构和光学性质 |
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| 引用本文： | 侯澎,张晓燕,吴君华,刘红玲.双相分散聚乙烯吡咯烷酮包覆氧化锌纳米粒子的微乳液法制备,结构和光学性质[J].化学研究,2011(5):82-85,105. |
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| 作者姓名： | 侯澎 张晓燕 吴君华 刘红玲 |
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| 作者单位： | 河南大学化学化工学院;韩国高丽大学工程技术研究所; |
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| 基金项目： | 河南省教育厅项目(2009A150004,2009A150005); 河南省科技厅项目(092102210004,092300410031) |
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| 摘 要： | 以乙酰丙酮锌为前躯体、聚乙烯吡咯烷酮(PVP)为表面活性剂,采用纳米微乳液法制备了有机相和水相双分散PVP包覆氧化锌(PVP-ZnO)纳米粒子;采用X射线衍射仪、透射电镜、红外光谱仪分析了其相组成、微结构及化学特征,利用紫外-可见吸收光谱仪和荧光光谱仪测定了其光学性质.结果表明,制备的纳米ZnO具有六方纤锌矿结构,粒径分布范围窄,结晶性好.纳米ZnO表面包裹PVP,使得PVP-ZnO在无机和有机溶剂中皆具有很好的分散性.与此同时,PVP-ZnO纳米粒子在紫外区尤其是373 nm处显示很强的紫外吸收,而在380nm的激发光下在496nm左右产生强蓝绿光发射,并在587nm处伴有弱黄绿光发射.
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| 关 键 词： | 双相分散 聚乙烯吡咯烷酮 ZnO纳米粒子 微乳液法 制备 结构表征 光学性质 |
Synthesis of bi-phase dispersible polyvinylpyrrolidone-capped zinc oxide nano-particulate via emulsion route and its structure as well as optical property |
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| HOU Peng,ZHANG Xiao-yan,WU Jun-hua,LIU Hong-ling.Synthesis of bi-phase dispersible polyvinylpyrrolidone-capped zinc oxide nano-particulate via emulsion route and its structure as well as optical property[J].Chemical Research,2011(5):82-85,105. |
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| Authors: | HOU Peng ZHANG Xiao-yan WU Jun-hua LIU Hong-ling |
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| Institution: | HOU Peng~1,ZHANG Xiao-yan~1,WU Jun-hua~2,LIU Hong-ling~(1*) (1.College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,Henan,China,2.Research Institute of Engineering and Technology,Korea University,Seoul 136-713,Korea) |
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| Abstract: | Bi-phase dispersible ZnO nanoparticles surface-capped by polyvinylpyrrolidone(PVP) were prepared using nano-emulsion method in the presence of zinc acetylacetoneZn(acac)_2]as the precursor and PVP as the surfactant.The phase composition,microstructure and chemical feature of resultant PVP-ZnO nanoparticles were analyzed by means of X-ray diffraction,transmission electron microscopy,and infrared spectrometry.Its optical properties were evaluated by means of ultraviolet-visible light absorbance spectrometry ... |
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| Keywords: | bi-phase dispersion PVP ZnO nanoparticles emulsion method preparation structural characterization optical properties |
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