کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5409693 1506550 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of cationic and anionic micelles on the morphology of biogenic silver nanoparticles, and their catalytic activity for congo red
ترجمه فارسی عنوان
اثرات میسلیهای کاتیونی و آنیونی بر روی مورفولوژی نانوذرات نقره بیوژنیک و فعالیت کاتالیزوری آنها برای قرمز کنگو
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The effects of cationic and anionic micelles of cetyltrimethylammonium bromide (CTAB) and sodiumdodecyl sulphate (SDS) have been studied on the morphology of biogenic Ag-nanoparticles (Ag-NPs) using an aqueous extract of Mentha leaves extract as a reducing agent for the first time. UV-visible absorption spectra showed one surface Plasmon resonance peak (SPR) at ca. 425 nm, indicating the Ag-NPs formation having almost spherical morphology. Reaction-time profiles suggest that rates (nucleation and growth) of the Ag-NPs were completed within the 30 min of the reaction time. Extract-, CTAB-, and SDS-capped Ag-NPs were characterized by conventional TEM, SEM and EDX techniques. CTAB and SDS have significant impact on the as prepared Ag-NPs. Absorbance continuous decreases, and decreases-increases with these stabilizers, respectively. Resulting Ag-NPs was used as a catalyst to the removal of congo red from industrial wastes water. UV-visible absorption spectra indicate that congo red form stable complex with Ag-NPs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 220, August 2016, Pages 364-369
نویسندگان
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