مقالههای Elnaz Ghasemi
توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقالههای نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده میشوند.
۱Removal of toxic heavy metal ions from aqueous solutions using amine containing resins based on polyacrylonitrile
اطلاعات انتشار: دومین همایش تخصصی مهندسی محیط زیست، سال ۱۳۸۷
تعداد صفحات: ۹
In the present research, amine containing resins based on polyacrylonitrile (PAN–DTA) were prepared through the reaction of polyacrylonitrile with various volume percents of diethylenetriamine (DTA), (50 and 100 v\v in water). The prepared resins were used to remove Ni(II), Cu(II) and Zn(II) ions from aqueous solutions. The sorption behaviors of the resins for these ions showed that the greater amounts of sorption were obtained at higher solution pH values. The highest sorption of PAN–DTA50 and PAN–DTA100 were determined 2.6 and 5 mmol\g for Cu(II), 1.9 and 3 mmol\g for Ni(II) and 1.8 and 3 mmol\g for Zn(II), respectively. The resins and their metal complexes have been studied by FT–IR spectroscopy, scanning electronic microscopy (SEM) and thermal gravimetry analysis (TGA).<\div>
۲Ionic liquids as efficient catalysts for synthesis of phosphorylated dialkyl succinates containing phthalazin–1–one moieties
اطلاعات انتشار: Iranian Journal of Catalysis، چهارم،شماره۲، ۲۰۱۴، سال ۰
تعداد صفحات: ۵
Ionic liquids such as 1,3–dialkylimidazolium salts make excellent catalysts and solvents for synthesis of dialkyl 2–(dialkoxyphosphoryl)–3–(1–oxo–1–H–phthalazin–2–yl)succinates from 2H–phthalazin–1–one, dialkyl acetylenedicarboxylates, and trialkyl phosphites. Under similar conditions, triphenyl phosphite led to dialkyl 2–(diphenoxyphosphoryl)–3–(1–oxo–1–H–phthalazin–2–yl)succinates. The ionic liquid was readily recycled and can be reused four times without significant loss of activity or mass.
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