Апр 13, 2017 | 12:30 / Важные события
Silver nanoparticles were synthesized at 293 divided by 353 K temperature range by NaBH4 and HCOOH solutions with low concentration at polyethyleneglycol having average molecular weight of 40000 and 200 kDa gum arabic medium. Obtained silver nanoparticles were studied using methods of X-ray diffraction, UV-Vis, FTIR spectroscopy, scanning electron microscope. It was determined that sizes of silver nanoparticles which stabilize at polymer medium vary from 12 to 26 nm range depending on mole ratio, temperature and reduction medium of initial substances. It was shown by FTIR-spectroscopy that -OH and -COOH groups in polymer take an active part in stabilization of silver nanoparticles. It was determined by UV-Vis study of silver nanoparticles containing polymer composition in aqueous condition that 412 nm which is specific to silver atoms do not change sharply for 4-5 days.
“Synthesis and Study of Structure Silver Nanoparticles by Polyethyleneglycol - Gum Arabic Polymers” Humbatova, S (Humbatova Seadet), Tapdigov, S (Tapdigov Shamo), Zeynalov, N (Zeynalov Nizami), Taghiyev, D (Taghiyev Dilgam), Mammadova, S (Mammadova Samira), “Journal of Nano Research”, 2017, v.45, 25-33.