Femtosecond laser assisted synthesis of gold nanorod and graphene hybrids and its photothermal property in the near-infrared region

Femtosecond laser assisted synthesis of gold nanorod and graphene hybrids and its photothermal property in the near-infrared region
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飞秒激光辅助合成金纳米棒和石墨烯杂化物及其近红外光热性能

DOI:
10.1016/j.jpcs.2019.04.020
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发表时间:
2019-09
影响因子:
4
通讯作者:
Hou Xun
Hou Xun
中科院分区:
材料科学3区
文献类型:
--
作者:
Yu Yang;Yan Lihe;Si Jinhai;Xu Yanmin;Hou Xun

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采用飞秒激光烧蚀光化学方法合成了金纳米棒(GNR)和还原氧化石墨烯(rGO)杂化材料,并在不使用强化学还原剂的情况下制备了金纳米棒(GNR)和还原氧化石墨烯(rGO)杂化材料。利用吸收光谱、透射电镜(TEM)和X射线光电子能谱(XPS)对产物进行了表征。所形成的GNR很好地位于rGO片的表面上。通过调节激光烧蚀时间,可以很好地控制GNR的长径比和光学性质。所产生的纳米复合材料表现出优异的近红外(NIR)光热性能,光热转换效率为77.8%,这表明该混合物具有很大的潜力,作为光热治疗剂。
Gold nanorod (GNR) and reduced graphene oxide (rGO) hybrids are synthesized using photochemical method based on femtosecond laser ablation without the usage of strong chemical reducing agents. The products are characterized by absorption spectra, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The formed GNR are well located on the surface of rGO sheets. By adjusting the laser ablation time, the aspect ratio and optical properties of GNR can be well controlled. The produced nanocomposites exhibited an excellent near-infrared (NIR) photothermal performance with a photothermal conversion efficiency of 77.8%, suggesting that the hybrids have large potential as agents in photothermal therapy.
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