Investigation of the electrical field effect on silver nanoparticles synthesizedusing sodium citrate and pvp stabilizers
- سال انتشار: 1395
- محل انتشار: دوازدهمین سمینار سالانه الکتروشیمی ایران
- کد COI اختصاصی: ELECTROCHEMISTRY012_046
- زبان مقاله: انگلیسی
- تعداد مشاهده: 270
نویسندگان
Department of Nano technology, Tarbiat Modares University, Tehran, Iran
Department of Nano technology, Tarbiat Modares University, Tehran, Iran
چکیده
The behavior of silver nanoparticles (AgNPs) under applied electric field depends primarily on their stabilizing agent. This research is aimed at investigating the behavior of AgNPs and theirstabilizers under electrochemical (EC) process. Silver nitrate and hydrazine hydrate were used as the sources of silver ion and reducing agent, respectively. In separate experiments, sodium citrate and polyvinylpyrrolidone (PVP) were used as nanoparticle stabilizers. Stability of the particles was studies when electrical current was applied. The efficiency of the EC process was investigated for different of AgNP sols. With sodium citrate for different voltages, after using the electric field for 90 min, the plasmon resonance peak of the sample disappeared, reflecting the removal of the AgNPs in the sol by 99.91%. With PVP, after applying electric field for 10 min, the absorbance peaks disappeared, and removal efficiency of the AgNPs reached 99.98%. Based on these results, it can be recognized that the AgNPs stabilized by citrate, are slightly more stable, whereas AgNPs solutions prepared by PVP showed better results on floc formation and, therefore, agglomerated more easily. The UV/Vis spectroscopy analysis was used for characterization of all samples. Also,the Field Emission Scanning Electron Microscopy (FESEM) was used for floc characterization.کلیدواژه ها
AgNPs, Sodium Citrate, PVP, Stabilizer, Electrochemical Processمقالات مرتبط جدید
- ؛ GRP-۷۸ سنتز و بهینه سازی نانوکامپوزیت آهن نیکل جهت تخلیض ایمونوگلوبولین
- نانوکامپوزیت مبتنی بر کربوکسی متیل سلولز: یک ماده زیستی امیدوار کننده برای کاربردهای زیست پزشکی
- Multi component Reaction of Isoquinoline, Dialkyl acetylenedicarboxylate, Aldehydes and Dimedone Catalyzed by Bio-CuO-NPs
- Synthesize of forward osmosis membrane with Zinc Oxide interlayer for enhanced water desalination
- Co-doping effects in CdWO۴ scintillator thin film as alpha counters: Ag and Gd case
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.