کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49773 46765 2016 5 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Toward enhancement of TiO2 surface defect sites related to photocatalytic activity via facile nitrogen doping strategy
ترجمه فارسی عنوان
به سوی افزایش سطح نقص سطح TiO2 مربوط به فعالیت فوتوکاتالیستی از طریق استراتژی دوپینگ نیتروژنی
کلمات کلیدی
N-Doped Pd @ TiO2؛ نقص سطحی سطح NH3؛ اکسیداسیون کاتالیستی؛ STXM؛ هرپس
N-doped Pd@TiO2; NH3 treatment surface defect; Catalytic oxidation; STXM; HRPES
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Nitrogen doping occurred readily on the near surfaces of PdO in Pd@TiO2.
• Nitrogen doping leads to generate Ti3 + species or oxygen vacancies site of the surface.
• Nitrogen-doped Pd@TiO2 nanostructured nanoparticles can provide good catalytic activity toward the oxidation reaction.

This study examined the catalytic activities of three distinct N–Pd@TiO2 nanoparticles, post-annealed (at 700, 800, and 900 °C) after fabrication on silicon substrates. Systematically, HRPES and SPEM indicated that nitrogen was predominantly doped around PdO nanostructure. Particularly, we prove that photocatalytic activity in effective nitrogen doped surface area is far higher than in undoped area of Pd@TiO2 nanoparticles by measuring for oxidation reaction of benzenethiol, thioacetic acid, and thiobenzoic acid. Besides to the band gap narrowing, nitrogen doping leads to generate Ti3 + species or oxygen vacancies site of the surface, which leads to enhance the activity of surface photocatalysis.

Graphical abstractCatalytic oxidation reactions of benzenethiol, thioacetic acid, and thiobenzoic acid on N–Pd@TiO2Figure optionsDownload full-size imageDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 81, 5 June 2016, Pages 45–49
نویسندگان
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