کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594640 1453988 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amphiphilic PMMA/PEI core–shell nanoparticles as polymeric adsorbents to remove heavy metal pollutants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Amphiphilic PMMA/PEI core–shell nanoparticles as polymeric adsorbents to remove heavy metal pollutants
چکیده انگلیسی

Amphiphilic nanoparticles with poly(methyl methacrylate) (PMMA) cores and poly(ethyleneimine) (PEI) shells were successfully synthesized through a one-step emulsifier-free polymerization method. The morphologies of PMMA/PEI nanoparticles were spherical in shape with uniform size distribution and well-defined core–shell nanostructure illustrated by field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). PMMA/PEI core–shell nanoparticles were applied as novel polymeric adsorbents to remove heavy metal pollutants. In present work, copper (II) ions were selected as the target pollutants to evaluate these nanoparticles adsorption capability. It was investigated by varying solution pH, weight ratio of nanoparticles to copper (II) ions, adsorption time and adsorption temperature, respectively. The maximum copper (II) ions adsorbed onto PMMA/PEI core–shell nanoparticles was 14 mg/g obtained under simple and fast experimental conditions, indicating these nanoparticles can be used as effective and practical polymeric adsorbents.

. FESEM image of PMMA/PEI core–shell nanoparticles adsorbed copper (II) ions.Figure optionsDownload as PowerPoint slideHighlights
► Amphiphilic PMMA/PEI core–shell nanoparticles were successfully synthesized through a one-step emulsifier-free polymerization method.
► PMMA/PEI core–shell nanoparticles were applied as potential effective adsorbents to remove heavy metal pollutants.
► The maximum copper (II) ions adsorbed onto PMMA/PEI core–shell nanoparticles was 14 mg/g obtained under simple and fast experimental conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 384, Issues 1–3, 5 July 2011, Pages 180–185
نویسندگان
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