کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10395566 | 888980 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biogenic N-P-codoped TiO2: Synthesis, characterization and photocatalytic properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Biogenic N-P-codoped TiO2: Synthesis, characterization and photocatalytic properties Biogenic N-P-codoped TiO2: Synthesis, characterization and photocatalytic properties](/preview/png/10395566.png)
چکیده انگلیسی
Four typical kinds of crop seeds are studied as non-metallic bio-precursors to synthesize biogenic N-P-codoped TiO2 (BNP-TiO2). The as-prepared BNP-TiO2 samples are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen-adsorption measurement and UV-Vis spectroscopy. The results show that BNP-TiO2 possesses single anatase phase with mesopore structures, and nitrogen and phosphorus contained in original crop seeds are self-doped into the lattice as anions and cations, respectively. Besides, BNP-TiO2 exhibits a strongly enhanced absorption in the UV-Vis light range and red shift of the absorption edge, implicating the highly efficient light-harvesting capacity and sensitization towards visible light. Furthermore, experiments of crystal violet degradation under Xe lamp irradiation indicate superior photocatalytic activity of BNP-TiO2, of which the degradation rate is almost three times that of common TiO2. Circled photocatalytic degradation also shows good photocatalytic stability of BNP-TiO2. This work may pave a new and facile pathway of utilizing discarded biomass to synthesize desirable element-doped metal oxides based on biomass precursors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 17, September 2010, Pages 6829-6835
Journal: Bioresource Technology - Volume 101, Issue 17, September 2010, Pages 6829-6835
نویسندگان
Ting Han, Tongxiang Fan, Suk-Kwun Chow, Di Zhang,