微波法制备3.5G PAMAM树状大分子保护的金纳米粒子

doi:10.7517/j.issn.1674-0475.2007.03.214

影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (3): 214-222.DOI: 10.7517/j.issn.1674-0475.2007.03.214

微波法制备3.5G PAMAM树状大分子保护的金纳米粒子

乔燕, 杜明春, 杨平, 杜玉扣

苏州大学化学, 化工学院, 江苏, 苏州, 215123

收稿日期:2006-10-23 修回日期:2007-01-17 出版日期:2007-05-23 发布日期:2007-05-23
通讯作者: 杜玉扣,E-mail:duyk@suda.edu.cn.
基金资助:
国家自然科学基金(90607024);江苏省教委自然科学基金(04KJB150120)

3.5 G PAMAM-Stabilized Au Nanoparticles Prepared by Microwave Irradiation

QIAO Yan, DU Ming-chun, YANG Ping, DU Yu-kou

Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123, Jiangsu, P. R. China

Received:2006-10-23 Revised:2007-01-17 Online:2007-05-23 Published:2007-05-23

摘要/Abstract

摘要： 以3.5 G PAMAM(3.5代聚酰胺-胺型)树状大分子为保护剂,利用微波法还原HAuCl₄溶液制备金纳米粒子.考察了当3.5 G PAMAM与HAuCl₄物质的量的比一定时,微波照射不同时间对金纳米粒子大小及形状的影响;以及同一照射条件下,3.5 G PAMAM与HAuCl₄不同的物质的量比值对金纳米粒子大小及形状的影响.利用紫外可见分光光度计、透射电子显微镜对其进行了表征.结果表明,当3.5 G PAMAM与HAuCl₄物质的量的比值一定时,金纳米粒子的形状和大小受微波照射时间长短的影响不大;适当延长照射时间,制得的金纳米粒子的分散性较好.在相同照射条件下,随着3.5 G PAMAM与HAu-Cl₄物质的量比值的减小,得到的金纳米粒子粒径逐渐变大,且分散性变差.

关键词: 微波法, 金纳米粒子, 3.5G PAMAM

Abstract: Using 3.5 G PAMAM as a stabilizing agent,Au nanoparticles were prepared by reducing HAuCl₄ with microwave irradiation.The influence of microwave irradiation at the same ratio of 3.5 G PAMAM to HAuCl₄ for the different time and at the different ratios of 3.5 G PAMAM to HAuCl₄ for the same time on Au nanoparticles’ size and shape was studied.Au nanoparticles were characterized by UV-Vis spectra and TEM.At the same ratio of 3.5 G PAMAM to HAuCl₄,the microwave irradiation time has a little influence on the Au nanoparticles’ size and shape,meanwhile more dispersed Au nanoparticles were obtained with the appropriate increase of reactive time.At the same irradiation time,bigger and more aggregative Au nanoparticles were acquired as the ratio of 3.5 G PAMAM to HAuCl₄ was decreased.

Key words: microwave irradiation, Au nanoparticles, 3.5 G PAMAM

中图分类号:

乔燕, 杜明春, 杨平, 杜玉扣. 微波法制备3.5G PAMAM树状大分子保护的金纳米粒子[J]. 影像科学与光化学, 2007, 25(3): 214-222.

QIAO Yan, DU Ming-chun, YANG Ping, DU Yu-kou. 3.5 G PAMAM-Stabilized Au Nanoparticles Prepared by Microwave Irradiation[J]. Imaging Science and Photochemistry, 2007, 25(3): 214-222.

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微波法制备3.5G PAMAM树状大分子保护的金纳米粒子

3.5 G PAMAM-Stabilized Au Nanoparticles Prepared by Microwave Irradiation

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