抄録
Pyrene-based nano-spheres were synthesized under RF-plasma conditions in an originally designed plasma reactor. The reactor configuration allows the processing of non- volatile, liquid-phase organic compounds or their solutions in volatile solvents, by atomizing them during their injection into the low-pressure reaction vessel. It has been shown that saturated benzene solution of Pyrene generates under Ar-RF-Plasma environments uniformly sized, hard spherical nano-particles. The structure and the thermal behavior of microsphers were analysed using X-ray photoelectron microscopy (ESCA), FTIR spectroscopy and differential thermal analysis (TG/DTA). Silver layers, composed of nanoparticles were deposited on formaldehyde-RF-plasma functionalized polyethylene (PE) surfaces by taking advantage of the Tollen's reaction. The presence of aldehyde functionalities and the silver on the modified PE surfaces were evidenced using ESCA, Energy dispersive X-ray analysis spectroscopy, SEM, and AFM techniques. High concentration of water-based colloidal (nano-size silver particles) silver solutions were also prepared under Dense Medium Plasma (DMP) plasma environments, and the strong bactericide effect of the silver solutions were evaluated. Applications of nano-particle systems are discussed.
