| 胶束性质对光化学制备金纳米粒子的影响 |
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| 引用本文： | 王仕兴,董守安,顾永万,潘云昆,周华. 胶束性质对光化学制备金纳米粒子的影响[J]. 贵金属, 2003, 24(2): 24-27,56 |
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| 作者姓名： | 王仕兴 董守安 顾永万 潘云昆 周华 |
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| 作者单位： | 昆明贵金属研究所,云南,昆明,650221 |
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| 基金项目： | 云南省自然科学基金重点项目 ( 2 0 0 0E0 0 0BZ) |
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| 摘 要： | 研究了阴离子表面活性剂疏水链的长度对光化学制备金纳米粒子的影响。结果发现，疏水链越长，获得的金纳米粒子的尺寸越小；特别是苯环的引入使诱导和自催化现象越加不明显。在十二烷基磺酸钠体系中获得的金纳米粒子的λmax位于540．7nm，TEM表征的平均粒径为47．1nm；十二烷基苯磺酸钠体系的λmax位于526．5nm，平均粒径为6．7nm。探讨了胶束性质对光化学制备金纳米粒子的影响。
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| 关 键 词： | 金纳米粒子 光化学制备 胶束 阴离子表面活性剂 自催化 苯环 疏水链 |
| 文章编号： | 1004-0676(2003)02-0024-04 |
Effect of Micellar Property on the Photochemical Formation of Gold Nanoparticles |
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| Wang Shi-Xing,Dong Shou-An ,Gu Yong-Wan,Pan Yun-Kun,Zhou Hua. Effect of Micellar Property on the Photochemical Formation of Gold Nanoparticles[J]. Precious Metals, 2003, 24(2): 24-27,56 |
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| Authors: | Wang Shi-Xing Dong Shou-An Gu Yong-Wan Pan Yun-Kun Zhou Hua |
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| Affiliation: | Wang Shi-Xing,Dong Shou-An *,Gu Yong-Wan,Pan Yun-Kun,Zhou Hua |
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| Abstract: | Gold nanoparticles were prepared by photoreduction of HAuCl 4 through the irradiation of 254nm UV light in the presence of sulphonate surfactant.The effect of hydrophobic chain length on photochemical formation of gold nanoparticles was studied.In the presence of sodium dodecyl sulfate,the average particle size was 47 1nm with the corresponding UV-Vis absorption peak at 540 7nm.In the sodium dodecyl benzene sulfate solution,the average particle size was 6 7nm,absorption peak was determined to be at 526 5nm.The autocatalytic phenomenon and effect of micellar property on particle size were discussed. |
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| Keywords: | metal materials gold nanoparticles micellar photochemical formation |
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