Jankowski K, Jabłońska J, Uznański P, Całuch S, Szybowicz M, Brzozowski R, Ostafin A, Kwaśny M, Tomasik M
Institute of Nanotechnology and Nanobiology, Jacob of Paradies University Chopina St. 52, Bldg. 6 66-400 Gorzow Wielkopolski Poland
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112 St. 90-363 Lodz Poland.
RSC Adv. 2022 Nov 28;12(52):33955-33963. doi: 10.1039/d2ra06050g. eCollection 2022 Nov 22.
The article presents the method of producing gold nanoparticles using a high voltage arc discharge of alternating current with a frequency of 50 Hz in distilled water. The equipment necessary to carry out the process is described, including the construction of the reactor and the power source of a very simple design necessary to generate a high-voltage arc discharge between the electrodes. Arc discharge processes were carried out two times for 2 and 5 minutes, respectively, in ambient conditions without thermostating the reactor, at medium temperature varying in the range of 25-70 °C. The obtained gold nanoparticles were examined by means of various analytical techniques such as UV-vis spectroscopy, zeta potential measurement, energy dispersive X-ray analysis (EDS), X-ray diffraction (XRD). The morphology, surface, and size of the obtained nanoparticles were carried out using transmission electron microscopy (HRTEM) and dynamic light scattering (DLS). The concentration of the obtained colloids were determined using the mass spectrometry ICP-MS technique. The results show that high-voltage AC arc discharge is a simple and effective way to obtain stable gold nanoparticles under environmentally friendly conditions at relatively low production costs, and can be considered as an alternative to arc discharge nanoparticles synthesis by means of direct current (DC) methods.
本文介绍了在蒸馏水中利用频率为50Hz的交流高压电弧放电制备金纳米粒子的方法。描述了进行该过程所需的设备，包括反应器的构造以及在电极之间产生高压电弧放电所需的设计非常简单的电源。电弧放电过程分别在环境条件下进行了两次，每次2分钟和5分钟，未对反应器进行恒温，介质温度在25 - 70°C范围内变化。通过各种分析技术对所得金纳米粒子进行了检测，如紫外可见光谱、zeta电位测量、能量色散X射线分析（EDS）、X射线衍射（XRD）。使用透射电子显微镜（HRTEM）和动态光散射（DLS）对所得纳米粒子的形态、表面和尺寸进行了研究。使用电感耦合等离子体质谱（ICP-MS）技术测定了所得胶体的浓度。结果表明，交流高压电弧放电是在环境友好条件下以相对较低的生产成本获得稳定金纳米粒子的一种简单有效的方法，可被视为通过直流（DC）方法合成电弧放电纳米粒子的一种替代方法。
