عنوان
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Green and simple synthesis of Ag nanoparticles loaded onto cellulosic fiber as efficient and low-cost catalyst for reduction of 4-nitrophenol
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Ag nanoparticles Cellulosic fiber Catalytic reduction 4-nitrophenol 4-aminophenol
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چکیده
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A green and very simplemethod (photoreduction of Ag+ by ethanol within few minutes) was used for preparation of Ag nanoparticles loaded onto cellulosic fiber and was used as catalyst for reduction of 4-nitrophenol to 4- aminophenol. The prepared catalyst was characterized with SEM, EDAX, and UV–Visible spectroscopy. Ag nanoparticles with 50 nmdiameter are distributed homogeneously on the surface of cellulosic fabric. Reduction of 4- nitrophenol to 4-aminophenol can be achieved by the prepared catalyst within fewminutes and the catalyst can be separated fromsolution easily. The kinetics of catalytic reactionwas investigated at different concentrations of 4-nitrophenol and NaBH4. It was found that the kinetics of reaction follows Langmuir–Hinshelwoodmechanism. It has been found that the prepared catalyst can be used several times for reduction of 4-nitrophenolwithout losing its catalytic activity.
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پژوهشگران
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فهیمه ترکمانی (نفر اول)، سعید عزیزیان (نفر دوم)
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