کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10389718 | 884247 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An energy-saving production of hydrogen peroxide via oxygen reduction for electro-Fenton using electrochemically modified polyacrylonitrile-based carbon fiber brush cathode
ترجمه فارسی عنوان
تولید انرژی پراکسید هیدروژن از طریق کاهش اکسیژن برای الکترو فنتون با استفاده از الکتروشیمیایی پلی اتیلن،
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کلمات کلیدی
ORRSCEPESH2 evolution reactionLSVPolyethersulphoneH2O2 electrogenerationElectrochemical modification - اصلاح الکتروشیمیاییSaturated Calomel Electrode - الکترودهای کالومل اشباع شدهElectro-Fenton - الکتروفنتونHER - اوCurrent efficiency - بازده کنونیMethyl orange - متیل اورانژEnergy consumption - مصرف انرژیOxygen reduction reaction - واکنش کاهش اکسیژنLinear sweep voltammetry - ولتاژ سنجش ولتاژ خطی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
A polyacrylonitrile-based carbon fiber brush (PAN-CFB) was electrochemically modified and efficiently used as cathode for H2O2 electrogeneration in electro-Fenton process. H2O2 generation performance and energy consumption for PAN-CFB cathode before and after modification were evaluated and compared. For electrochemically modified PAN-CFB (EMPAN-CFB) cathode, the maximal H2O2 concentration (approx. 80 mg Lâ1 by 1000 C charge, >90% current efficiency) appeared at â0.4 and â0.5 V vs. SCE, a ca. 500 mV positive shift compared with the pristine one, showing desirable stability without performance decay after 30 cycles utilization. Moreover, the influence of the distance between anode and cathode as well as the electrolyte concentration on the energy consumption for H2O2 generation was investigated, with obviously reduced energy consumption for the EMPAN-CFB cathode. Finally, methyl orange was decolorized via electro-Fenton process using the EMPAN-CFB cathode and rapid color removal was accomplished in 5 min following the pseudo-first-order kinetic model with high correlation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 156, Part 2, 17 December 2015, Pages 553-560
Journal: Separation and Purification Technology - Volume 156, Part 2, 17 December 2015, Pages 553-560
نویسندگان
Guangsen Xia, Yonghong Lu, Haibo Xu,