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[求助]
檸檬酸鈉做還原劑制備納米金膠
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| 以檸檬酸鈉做還原劑制備的納米金膠表面是不是帶負(fù)電荷的?誰(shuí)有解釋其帶負(fù)電荷這方面的文獻(xiàn)? |

金蟲 (小有名氣)


鐵桿木蟲 (著名寫手)
general

木蟲 (正式寫手)
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http://pubs.acs.org/doi/abs/10.1021/jp075582m Estimation of Surface Oxide on Surfactant-Free Gold Nanoparticles Laser-Ablated in Water Surfactant-free gold nanoparticles were prepared by laser ablation of a gold metal plate in water. The nanoparticles were characterized by absorption spectroscopy, ζ-potential measurements, and XPS spectroscopy. The nanoparticles are negatively charged because the surface atoms are partially oxidized to Au伢-, according to the literature by Sacher and co-workers (J. Phys. Chem. B, 2004, 108, 16864). We further examined electrostatic interactions between nanoparticle and cationic surfactants. |
木蟲 (正式寫手)
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Fluorescence of Colloidal Gold Nanoparticles is Controlled by the Surface Adsorbate Ewa M. Goldys * and Mushtaq A. Sobhan Adv. Funct. Mater. 2012, 22, 1906–1913 It is reported that density and type of surface ligands have key infl uence on the dominant UV-vis fl uorescence band in positively and negatively charged gold nanoparticles capped with citrate, gold oxide, and cetyltrimethyl ammonium bromide (CTAB). |
木蟲 (正式寫手)

木蟲 (小有名氣)

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