دورية أكاديمية
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Acid-treated Fe-doped TiO 2 as a high performance photocatalyst used for degradation of phenol under visible light irradiation.

التفاصيل البيبلوغرافية
العنوان: Acid-treated Fe-doped TiO 2 as a high performance photocatalyst used for degradation of phenol under visible light irradiation.
المؤلفون: Moradi V; Mechanical Engineering Department, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada; Center for Advanced Materials and Related Technology, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada. Electronic address: vmoradi@uvic.ca., Ahmed F; Mechanical Engineering Department, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada., Jun MBG; School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2088, USA., Blackburn A; Center for Advanced Materials and Related Technology, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada., Herring RA; Mechanical Engineering Department, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada; Center for Advanced Materials and Related Technology, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada.
المصدر: Journal of environmental sciences (China) [J Environ Sci (China)] 2019 Sep; Vol. 83, pp. 183-194. Date of Electronic Publication: 2019 Apr 13.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: IOS Press Country of Publication: Netherlands NLM ID: 100967627 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1001-0742 (Print) Linking ISSN: 10010742 NLM ISO Abbreviation: J Environ Sci (China)
أسماء مطبوعة: Publication: Amsterdam : IOS Press
Original Publication: Beijing : Editorial Dept. of Journal of Environmental Sciences (China), 1989-
مواضيع طبية MeSH: Models, Chemical* , Photochemical Processes*, Phenol/*chemistry, Catalysis ; Light ; Phenols ; Photoelectron Spectroscopy ; Spectrometry, X-Ray Emission ; Titanium/chemistry ; X-Ray Diffraction
مستخلص: The photocatalytic activity of Fe-doped TiO 2 nanoparticles is significantly increased by an acid-treatment process. The photocatalyst nanoparticles were prepared using sol-gel method with 0.5 mol% ratio of Fe:Ti in acidic pH of 3. The nanoparticles were structurally characterized by means of X-ray diffraction (XRD), high-resolution transmission electron microscope (HRTEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) and diffuse reflectance spectroscopy (DRS). It was observed that the photocatalytic activity suffered from an iron oxide contaminating layer deposited on the surface of the nanoparticles. This contamination layer was removed using an HCl acid-treatment process. The photocatalytic activity using 500 mg/L of Fe 0.5 -TiO 2 in a 10 mg/L of phenol solution increased significantly from 33% to 57% (about 73% increase in the performance), within 90 min of reaction time under visible light irradiation. This significant improvement was achieved by removing the iron oxide contamination layer from the surface of the nanoparticles and adjusting pH to mild acidic and basic pHs.
(Copyright © 2019. Published by Elsevier B.V.)
فهرسة مساهمة: Keywords: Iron doping; Kinetics; Phenol degradation; Photocatalyst; Visible light
المشرفين على المادة: 0 (Phenols)
15FIX9V2JP (titanium dioxide)
339NCG44TV (Phenol)
D1JT611TNE (Titanium)
تواريخ الأحداث: Date Created: 20190622 Date Completed: 20190726 Latest Revision: 20190726
رمز التحديث: 20221213
DOI: 10.1016/j.jes.2019.04.002
PMID: 31221381
قاعدة البيانات: MEDLINE
الوصف
تدمد:1001-0742
DOI:10.1016/j.jes.2019.04.002