Herein, the feasibility of using hyperspectral imaging (HSI) for fast and non-destructive size estimation of supported gold nanoparticles (AuNPs) is demonstrated. NPs of different sizes in the range of 2–12 nm in diameter are deposited onto silica supports with various pore structure. The NPs sizes are determined on the basis of TEM images. Data from HSI and UV–vis spectra, i.e., the location of the reflectance minimum and absorption maximum, respectively, are compared, and good agreement is obtained. Thus, it is shown that the hyperspectral camera can be an effective tool to characterize the size of gold NPs deposited on a porous supports.

中文翻译：

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高光谱成像作为一种简便且非破坏性的方法，用于分析沉积在多孔材料上的金纳米颗粒的尺寸

在此，证明了使用高光谱成像（HSI）对负载的金纳米颗粒（AuNP）进行快速、无损尺寸估计的可行性。直径在 2-12 nm 范围内的不同尺寸的 NP 沉积在具有各种孔结构的二氧化硅载体上。NP 尺寸是根据 TEM 图像确定的。比较了 HSI 和紫外可见光谱的数据，即反射率最小值和吸收最大值的位置，分别得到了很好的一致性。因此，表明高光谱相机可以成为表征沉积在多孔载体上的金纳米颗粒尺寸的有效工具。