کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7942778 | 1513236 | 2014 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of spindle-like Ag/ZnO heterostructure composites with enhanced photocatalytic performance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Spindle-like Ag/ZnO heterostructure composites were synthesized through a solution-based surface modification method, during which Ag nanoparticles were deposited on the surfaces of ZnO spindles prepared in advance. The obtained samples were characterized by XRD, SEM, TEM, XPS, PL and UV-vis absorption spectroscopy. The photocatalytic activity of the as-prepared spindle-like Ag/ZnO samples with different Ag contents was tested with the photocatalytic degradation of methylene blue. Results showed that the photocatalytic activity of Ag/ZnO was obviously improved compared with the pure ZnO, and the Ag/ZnO-2 sample prepared with an AgNO3 concentration of 0.05Â M had the highest photocatalytic activity. The Ag/ZnO heterostructure composites promoted the separation of photo-induced electrons and holes, which was proved by surface photovoltage spectroscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 65, January 2014, Pages 134-145
Journal: Superlattices and Microstructures - Volume 65, January 2014, Pages 134-145
نویسندگان
Zhenfei Zhang, Hairui Liu, Hua Zhang, Hailiang Dong, Xuguang Liu, Husheng Jia, Bingshe Xu,