| 多壁碳纳米管/硫化铅纳米杂化材料 |
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| 引用本文： | 田亦欣,刘苗苗,冯晓婷,张皓辉,杨 艳,吴惠霞.多壁碳纳米管/硫化铅纳米杂化材料[J].广州化工,2014(6):48-50. |
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| 作者姓名： | 田亦欣 刘苗苗 冯晓婷 张皓辉 杨 艳 吴惠霞 |
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| 作者单位： | 上海师范大学化学化工系,上海200234 |
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| 基金项目： | 国家自然科学基金（50972092）资助. |
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| 摘 要： | 在经强酸氧化处理的多壁碳纳米管(MWCNT)上修饰以苯环为核心的聚(酰胺-胺)树枝状大分子,然后以树枝状大分子修饰的碳纳米管为模板,在碳纳米管表面原位沉积PbS纳米粒子。用XRD、SEM、TEM和TGA等手段对所得MWCNT/PbS纳米杂化材料进行表征。结果表明,利用这个方法能够使PbS纳米粒子均匀修饰在碳纳米管上,纳米粒子的平均尺寸为6.5 nm。采用开口z扫描技术研究MWCNT/PbS纳米杂化材料在1 064 nm处的非线性光学性质。MWCNT/PbS纳米杂化材料在1 064 nm处的光限幅性能优于未经修饰的碳纳米管。
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| 关 键 词： | 碳纳米管 树枝状大分子 PbS纳米粒子 光限幅性质 |
Multiwalled Carbon Nanotube/PbS Nano -hybrid Material |
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| Affiliation: | TIAN Yi - xin , LIU Miao - miao , FENG Xiao - ting , ZHANG Hao - hui , YANG Yah, WU Hui - xia (Department of Chemistry and Chemical Engineering, Shanghai Normal University, Shanghai 200234, China) |
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| Abstract: | Fourth- generation poly （amido amine） dendrimers with a trimesyl core were grafted to strong acid - treated muhiwalled carbon nanotubes （ MWCNTs ）, and the as - synthesized MWCNT - dendrimer was used as the template for in situ growth of PbS nanoparticles on MWCNTs. The resulting MWCNT/PbS nano - hybrid material was extensively characterized by XRD, SEM, TEM and TGA. PbS nanoparticles with mean size of 6. 5 nm were uniformly coated on the side - wall of MWCNTs. Open aperture z - scan measurements were carried out on MWCNT/PbS nano - hybrid material to study its nonlinear optical property at 1 064 nm. The results demonstrated that the optical limiting performance of MWCNT/PbS nano - hybrid material was better than that of strong acid - treated MWCNTs. |
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| Keywords: | carbon nanotubes dendrimers PbS nanoparticles optical limiting property |
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