| Cu_7S_4纳米管的生物分子辅助水热合成与光学性质(英文) |
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| 引用本文： | 郭培志,韩光亭,王宝燕,赵修松.Cu_7S_4纳米管的生物分子辅助水热合成与光学性质(英文)[J].物理化学学报,2010,26(9):2557-2562. |
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| 作者姓名： | 郭培志 韩光亭 王宝燕 赵修松 |
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| 作者单位： | 1. Laboratory of New Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, School of Chemistry, Chemical Engineering and Environmental Sciences, Qingdao University, Qingdao 266071, Shandong Province, P. R. China;
2. Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, ingapore 117576 |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China，Doctoral Foundation of Shandong Province，Natural Science Foundation of Shandong Province，"Taishan Scholar" Program of Shandong Province;China.国家自然科学基金，山东省博士基金，山东省自然科学基金，"泰山学者"计划资助项目 |
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| 摘 要： | 使用生物分子DL-甲硫氨酸辅助水热方法合成Cu7S4纳米管,产物的形貌与晶型可通过改变实验参数进行调控.研究表明,硝酸铜和DL-甲硫氨酸在反应开始时的配位比为1∶2,而且当反应物的摩尔比为1∶2和反应温度为200℃时可合成直径为100-600nm、长度达40-100μm的多晶Cu7S4纳米管.使用D-或L-甲硫氨酸均能得到类似Cu7S4纳米管.Cu7S4纳米管的禁带宽度为2.88eV,与Cu7S4的块体材料相比有明显蓝移.基于实验研究结果,讨论了甲硫氨酸分子中的官能团与反应产物之间的联系并提出了Cu7S4纳米管的自牺牲模板法形成机理.
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| 关 键 词： | 水热合成 Cu7S4纳米管 甲硫氨酸 生物分子 |
| 收稿时间： | 2010-02-03 |
| 修稿时间： | 2010-06-30 |
Biomolecule-Assisted Hydrothermal Synthesis and Optical Properties of Cu7S4 Nanotubes |
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| GUO Pei-Zhi,HAN Guang-Ting,WANG Bao-Yan,ZHAO Xiu-Song.Biomolecule-Assisted Hydrothermal Synthesis and Optical Properties of Cu7S4 Nanotubes[J].Acta Physico-Chimica Sinica,2010,26(9):2557-2562. |
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| Authors: | GUO Pei-Zhi HAN Guang-Ting WANG Bao-Yan ZHAO Xiu-Song |
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| Institution: | 1. Laboratory of New Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, School of Chemistry, Chemical Engineering and Environmental Sciences, Qingdao University, Qingdao 266071, Shandong Province, P. R. China;
2. Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, ingapore 117576 |
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| Abstract: | Cu7S4 nanotubes were synthesized using a biomolecule DL-methionine-assisted hydrothermal method.The morphology and phase of the products can be controlled by adjusting the reaction parameters such as synthesis temperature, reaction time and the molar ratio of the reagents. We found that uniform polycrystal Cu7S4 nanotubes with diameters of 100-600 nm and lengths of 40-100 μm can be controllably synthesized at 200 ℃ when the molar ratio of Cu(NO3)2 to DL-methionine in the synthesis system is 1:2. Similar Cu7S4 nanotubes can be obtained from D- or L-methionine systems. The bandgap energy of the Cu7S4 nanotubes was measured to be about 2.88 eV, a remarkable blue shift in comparison with that of bulk Cu7S4 (2.0 eV). We discussed the relationship between the products and the functional groups in the amphiphilic biomolecules. On the basis of our experimental data, we proposed that the Cu7S4 nanotubes were formed versus a self-sacrificing template mechanism. |
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| Keywords: | Hydrothermalsynthesis Cu7S4nanotube Methionine Biomolecule |
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