کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1608619 1516244 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of Ag2S-TiO2 nanocomposites and their catalytic activity towards rhodamine B photodegradation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Synthesis of Ag2S-TiO2 nanocomposites and their catalytic activity towards rhodamine B photodegradation
چکیده انگلیسی
Ag2S-TiO2 nanocomposites were prepared by a simple thermal decomposition approach. The synthesized nanocomposites were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) coupled with energy dispersive X-ray analysis (EDXA), transmission electron microscopy (TEM) and diffuse reflectance spectroscopy (DRS). XRD results indicate that the Ag2S-TiO2 nanocomposites consist of nanocrystallites of Ag2S and TiO2. TEM results indicate uniform distribution of Ag2S nanoparticles (8.8 ± 1.9 nm) in the TiO2 matrix. A blue shift of band gap of Ag2S in the nanocomposites compared to bulk Ag2S is observed. The Ag2S-TiO2 nanocomposites act as good catalyst for the photodegradation of Rhodamine B in aqueous solutions in the presence of sunlight.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 649, 15 November 2015, Pages 483-490
نویسندگان
, ,