| 聚乙烯吡咯烷酮修饰的CdS纳米晶：多元醇合成、表征和可见光活性 |
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| 引用本文： | 陈崇启,詹瑛瑛,郑远辉,林性贻,郑起.聚乙烯吡咯烷酮修饰的CdS纳米晶：多元醇合成、表征和可见光活性[J].无机化学学报,2008,24(4):605-609. |
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| 作者姓名： | 陈崇启 詹瑛瑛 郑远辉 林性贻 郑起 |
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| 作者单位： | 福州大学化肥催化剂国家工程研究中心,福州,350002 |
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| 基金项目： | 国家自然科学基金
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福建省重大专项项目 |
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| 摘 要： | 采用溶剂热法合成了具有不同晶粒尺寸的聚乙烯吡咯烷酮（PVP）修饰的CdS纳米晶，并运用XRD，N2物理吸附，TEM，IR，UV-Vis等手段进行表征。结果表明，所制得的样品均为聚乙烯吡咯烷酮(PVP)修饰的CdS纳米晶；添加四甲基氢氧化铵(TMAH)有利于获得晶粒尺寸较小的CdS纳米晶；受纳米晶粒尺寸的影响，CdS纳米晶的吸收边发生蓝移且可见光催化活性明显提高。
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| 关 键 词： | 溶剂热 PVP修饰的CdS纳米晶 半导体 可见光催化 |
| 文章编号： | 1001-4861(2008)04-0605-05 |
| 修稿时间： | 2007年10月29 |
Poly(N-vinyl-2-pyrrolidone)-capped CdS Nanocrystals: Polyol Synthesis, Characterization and Visible-light Photocatalysis |
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| CHEN Chong-Qi,ZHAN Ying-Ying,ZHENG Yuan-Hui,LIN Xing-Yi and ZHENG Qi.Poly(N-vinyl-2-pyrrolidone)-capped CdS Nanocrystals: Polyol Synthesis, Characterization and Visible-light Photocatalysis[J].Chinese Journal of Inorganic Chemistry,2008,24(4):605-609. |
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| Authors: | CHEN Chong-Qi ZHAN Ying-Ying ZHENG Yuan-Hui LIN Xing-Yi and ZHENG Qi |
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| Institution: | National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002 and National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002 |
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| Abstract: | Poly(N-vinyl-2-pyrrolidone)-capped CdS nanocrystals with different crystalline sizes were synthesized through a simple solvothermal method. The structures of the as-synthesized samples were characterized by XRD, N2 physisorption, TEM, IR spectroscopy, and UV-Vis spectroscopy. The results show that the as-synthesized samples are poly(N-vinyl-2-pyrrolidone)-capped CdS nanohybrid materials; the grain size of CdS nanocrystals is smaller when tetramethylammonium hydroxide(TMAH) is introduced in the reaction system. In addition, it is also found that the bandgap of CdS nanocrystals is blue shifted and the visible-light photocatalytic activity of the sample synthesized in the presence of TMAH increases due to the size effect. |
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| Keywords: | solvothermal PVP-capped CdS nanocrystals semiconductors visible-light photocatalysis |
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