کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625156 | 989615 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation, photocatalytic properties and mechanism of Fe or N-doped Ag/ZnO nanocomposites
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Fe or N-doped Ag/ZnO nanocomposites were synthesized by the dual-step liquid deposition method and one-step liquid deposition combined with plasma nitriding. The as-synthesized nanocomposites were characterized by transmission electron microcopy, high-resolution transmission electron microcopy, X-ray diffraction and X-ray photoelectron spectroscopy. In addition, the photocatalytic properties of Fe or N-doped Ag/ZnO nanocomposites were evaluated by the degradation of methyl orange (MO) under ultraviolet light irradiation using our self-made photocatalytic apparatus. Results showed that Fe or N-doped Ag/ZnO nanocomposites exhibited superior photocatalytic properties compared to the undoped Ag/ZnO nanocomposites. The concentration of ferric sulfate solution and doping ratio of n(Fe): n(ZnO) played an important role in improving photocatalytic properties of Fe-doped Ag/ZnO nanocomposites and the optimized concentration and doping ratio were determined to be 0.134Â M and 5%, respectively. Moreover, the plasma nitriding time also played an important role and the optimal plasma nitriding time was 30Â min. The enhanced photoactivity mechanism for Fe or N-doped Ag/ZnO nanocomposites was adequately discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 7, Part A, August 2014, Pages 9303-9309
Journal: Ceramics International - Volume 40, Issue 7, Part A, August 2014, Pages 9303-9309
نویسندگان
Alan Meng, Xiujuan Li, Xianlin Wang, Zhenjiang Li,