کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
49635 46757 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Visible light-active sub-5 nm anatase TiO2 for photocatalytic organic pollutant degradation in water and air, and for bacterial disinfection
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Visible light-active sub-5 nm anatase TiO2 for photocatalytic organic pollutant degradation in water and air, and for bacterial disinfection
چکیده انگلیسی


• Controlled sol–gel synthesis of hydroxyl defect-laden sub-5 nm anatase TiO2
• Clarification of the surface and sub-surface hydroxyl defects
• Hydroxyl defects rendered the sub-5 nm anatase TiO2 visible light-active.
• Effective visible-light-driven degradation of organic pollutants in water and in air
• Effective photocatalytic bacterial disinfection under visible light irradiation

Visible-light-sensitive sub-5 nm anatase titanium dioxide (TiO2) nanoparticles (NPs) were fabricated without any doping and calcination treatments. The energy band gap was effectively narrowed to ~ 2.98 eV. The surface and subsurface hydroxyl defects were ascertained as the origin for the band gap narrowing and for the efficient azo-based dye degradation in water and formaldehyde decomposition in air, as well as disinfection of Staphylococcus aureus bacteria, under visible light irradiation.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 72, 5 December 2015, Pages 81–85
نویسندگان
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