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首页> 外文期刊>RSC Advances >Size-controlled synthesis of gold nanoparticles by a novel atmospheric pressure glow discharge system with a metallic pin electrode and a flowing liquid electrode
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Size-controlled synthesis of gold nanoparticles by a novel atmospheric pressure glow discharge system with a metallic pin electrode and a flowing liquid electrode

机译：具有金属销电极的新型大气压辉光放电系统和流动液电极的尺寸控制金纳米颗粒的尺寸控制合成

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摘要

A direct current atmospheric pressure glow discharge (APGD) operated between a pin-type solid metallic electrode and the surface of a flowing solution (the liquid electrode), positively or negatively charged and serving as the flowing liquid anode (FLA) or cathode (FLC), was used for synthesizing gold nanoparticles (AuNPs). To the best of our knowledge, the synthesis of AuNPs in such a system, with no noble gas required to support the APGD, has never been reported. The effect of the selected operating parameters on the performance of the AuNPs synthesis in the plasma-reaction system with the FLA or FLC was examined. The design of the experiments (DOE) was conducted using the response surface regression (RSR) approach. The response of both systems was the wavelength of the maximum (lambda(max)) of the localized surface plasmon resonance (LSPR) absorption band of the AuNPs. On the basis of the established full quadratic regression models, the optimal operating parameters for both plasma-reaction systems (with the FLA or the FLC) were selected, which allowed for the smallest in size spherical AuNPs to be obtained. Both regression models were validated, the AuNPs produced in both plasma-reaction systems under the optimal operating parameters were characterized by UV-Vis absorption spectrophotometry, scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
机译：在销型固体金属电极和流动溶液（液体电极）的表面之间操作的直流大气压辉光放电（APGD），正面或带负电并用作流动的液体阳极（FLA）或阴极（FLC ），用于合成金纳米颗粒（AUNP）。据我们所知，从未报道过，从未报道过这种系统中的肛门孔的合成，没有所需的惰性气体。检查了所选操作参数对具有FLA或FLC的等离子体反应体系中的AuNP合成性能的影响。使用响应表面回归（RSR）方法进行实验（DOE）的设计。两种系统的响应是局部表面等离子体谐振（LSPR）吸收带的最大（LAMBDA（MAX））的波长。在所建立的全准回归模型的基础上，选择了等离子体反应系统（用FLA或FLC）的最佳操作参数，其允许获得最小的尺寸球形AUNP。验证了两种回归模型，通过UV-Vis吸收分光光度法，扫描电子显微镜（SEM）和透射电子显微镜（TEM）表征在最佳操作参数下的两种等离子体反应系统中产生的剖腹产。

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  • 来源
    《RSC Advances》 |2016年第84期|共11页
  • 作者

    Dzimitrowicz A.; Greda K.; Lesniewicz T.; Jamroz P.; Nyk M.; Pohl P.;

  • 作者单位

    Wroclaw Univ Technol Fac Chem Dept Analyt Chem &

    Chem Met Wybrzeze Stanislawa Wyspianskiego 27 PL-50370 Wroclaw Poland;

    Wroclaw Univ Technol Fac Chem Dept Analyt Chem &

    Chem Met Wybrzeze Stanislawa Wyspianskiego 27 PL-50370 Wroclaw Poland;

    Klodzka 1f-1 PL-55040 Bielany Wroclawskie Poland;

    Wroclaw Univ Technol Fac Chem Dept Analyt Chem &

    Chem Met Wybrzeze Stanislawa Wyspianskiego 27 PL-50370 Wroclaw Poland;

    Wroclaw Univ Technol Fac Chem Dept Adv Mat Engn &

    Modelling Wybrzeze Stanislawa Wyspianskiego 27 PL-50370 Wroclaw Poland;

    Wroclaw Univ Technol Fac Chem Dept Analyt Chem &

    Chem Met Wybrzeze Stanislawa Wyspianskiego 27 PL-50370 Wroclaw Poland;

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  • 正文语种 eng
  • 中图分类 化学;
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