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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Synthesis of spindle-like Ag/ZnO heterostructure composites with enhanced photocatalytic performance
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 0.05 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
نویسندگان
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