رابط‌های آندی و کاتدی پلاسما-مایع در یک تخلیۀ تابان فشار اتمسفری

نوع مقاله : مقاله پژوهشی کامل

نویسندگان

دانشکده فیزیک، دانشگاه تبریز، تبریز، ایران

چکیده

در این مقاله با به‌کارگیری یک راکتور شیشه‌ای هافمن به‌عنوان دستگاه الکترولیز، مکانیسم واکنش‌های فاز مایع ناشی از اعمال یک تخلیۀ تابان فشار اتمسفری DC برای گازهای آرگون، اکسیژن و نیتروژن در یک محلول آبی به‌طور تجربی مورد مطالعه قرار گرفت و اثرات تابش الکترونی و تابش یون مثبت بر فاز مایع به‌طور جداگانه برای رابط‌های آندی و کاتدی پلاسما بررسی شدند. در این تحقیق هدایت الکتریکی (EC)، کل جامدات محلول (TDS)، غلظت کاتیون‌های هیدروژن ، آنیون‌های هیدروکسید  و گاز اکسیژن  آب در الکترولیز معمول و رابط‌های آندی و کاتدی پلاسما-مایع در بازه‌های زمانی ∆t=2min در طول مدت زمان کوتاه t=6min محاسبه و با یکدیگر مقایسه شدند. نتایج نشان می‌دهند که می‌توان از رابط‌های آندی و کاتدی پلاسما به‌عنوان روش الکترولیز نوین جهت تغییر و کنترل خواص مایعات بهره گرفت. علاوه بر این، پلاسماهای نیتروژن و اکسیژن در مقایسه با پلاسمای آرگون به‌دلیل وجود گونه‌های واکنش پذیر حاصل از گازهای تغذیه کنندۀ اکسیژن و نیتروژن علاوه بر گونه‌های ناشی از گازهای اتمسفر و بخار آب به‌عنوان عاملی بر افزایش واکنش‌ها و تغییرات چشمگیرتر خاصیت آب مشاهده شدند. همچنین تخلیۀ کاتد مایع در تولید گونه‌های واکنش‌پذیر و تغییر خواص آب مؤثرتر از تخلیۀ آند مایع بود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Plasma-liquid anodic and cathodic interfaces in an atmospheric pressure glow discharge

نویسندگان [English]

  • Fatemeh Baharlounezhad
  • Mohammad Ali Mohammadi
  • MohammadSadegh Zakerhamidi
Faculty of Physics, University of Tabriz,Tabriz, Iran
چکیده [English]

In this paper, using a Hoffmann glass reactor as an electrolysis instrument, the mechanism of liquid phase reactions resulting from the application of a DC atmospheric pressure discharge was studied experimentally for argon, oxygen, and nitrogen gases in an aqueous solution, and the effects of electron and positive ion radiations on the liquid phase were investigated separately for plasma anodic and cathodic interfaces. Electrical conductivity (EC), total dissolved solids (TDS), the concentrations of hydrogen cations , hydroxide anions , and oxygen gas of water were calculated and compared in conventional electrolysis and plasma-liquid anodic and cathodic interfaces for short time t=6min in periods of ∆t=2min. The results show that plasma anodic and cathodic interfaces can be used as a new electrolysis method to change and control the properties of liquids. In addition, nitrogen and oxygen plasmas were observed as a factor in increasing reactions and more considerable changes in water properties than argon plasma. That was due to the presence of reactive species derived from oxygen and nitrogen feeder gases in addition to species of atmospheric gases and water vapor. Further, liquid cathode discharge was more effective than liquid anodic discharge at producing more reactive species and changing water properties.

کلیدواژه‌ها [English]

  • Plasma anodic interface
  • Plasma cathodic interface
  • Atmospheric pressure glow discharge
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