کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5465699 | 1398881 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of Fenton-like coating catalyst on Q235 carbon steel by plasma electrolytic oxidation in silicate electrolyte
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of Fenton-like coating catalyst on Q235 carbon steel by plasma electrolytic oxidation in silicate electrolyte Preparation of Fenton-like coating catalyst on Q235 carbon steel by plasma electrolytic oxidation in silicate electrolyte](/preview/png/5465699.png)
چکیده انگلیسی
Plasma electrolytic oxidation (PEO) on Q235 carbon steel has been applied in the silicate electrolyte. The ceramic coatings were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy, and scanning electron microscopy (SEM). The effects of ceramic coating preparation conditions on the surface morphology, composition, thickness and phenol degradation by Fenton-like reaction were investigated. The results indicated that the ceramic coating with porous structure was comprised of amorphous phases SiO2 and Fe3O4. The average pore diameter and thickness of the ceramic coating increased slightly with the increase of reaction time and current density of PEO. In addition, the ceramic coatings were mainly composed of Si, Fe, Na, P, and O according to the EDS analysis. The phenol degradation experiments indicated that the removal efficiency was reduced with the increase of reaction time, but increased at 30Â min. On the contrary, the degradation rate was first enlarged, and then decreased with the increase of current density. The 96% removal efficiency of phenol was achieved after 120Â min degradation at the condition of 35Â mg/L phenol, 6.0Â mmol/L H2O2, pHÂ 4.0 and TÂ =Â 303Â K while 6Â cm2 ceramic coating was used as Fenton-like catalyst which was prepared under 12Â A/cm2 and 10Â min. The total leached Fe was below the EU directives (<Â 2Â mg/L). The leached Fe originated not only from the substrate, but also from ceramic coating. The unique advantages over the nanoparticle and excellent stability endowed it with desirable and promising application in the wastewater treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 307, Part C, 15 December 2016, Pages 1315-1321
Journal: Surface and Coatings Technology - Volume 307, Part C, 15 December 2016, Pages 1315-1321
نویسندگان
Jiankang Wang, Chunxiang Li, Zhongping Yao, Min Yang, Yajing Wang, Qixing Xia, Zhaohua Jiang,