کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7783428 1500571 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Engineering sodium alginate-based cross-linked beads with high removal ability of toxic metal ions and cationic dyes
ترجمه فارسی عنوان
دانه های متقاطع مبتنی بر آلژینات سدیم با توانایی بالا برداشتن یون فلز سمی و رنگ های کاتیونی
کلمات کلیدی
آلژینات سدیم، پلی (2-اکریلنمیدو-2-متیل پروپا-1-سولفونیک اسید)، دانه های برش خورده، تصفیه فاضلاب،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Sodium alginate (SA) beads with ultrahigh adsorption capacity were prepared via hydrogen bonds between SA and 2-acrylamido-2-methylpropa-1-propanesulfonic acid (AMPS), and the AMPS was then post-cross-linked to manufacture SA/PAMPS beads. The equilibrium adsorption capacities of methylene blue (MB) and Pb2+ for the SA/PAMPS10 beads were 2977 and 2042 mg/g, respectively. Although the SA beads exhibited higher equilibrium adsorption capacities of MB and Pb2+ than those of the SA/PAMPS10 beads, the SA/PAMPS10 beads had better mechanical property and higher stability. The pseudo-second-order kinetic model and the Langmuir isotherm described the adsorption processes of the SA/PAMPS10 beads for MB well. In addition, the SA/PAMPS10 beads could be reused with stable adsorption capacity for at least three cycles. The beads also had excellent performances on absorbing methylene violet and other heavy metal ions (Cu2+, Cd2+ and Ni2+). Therefore, the SA-based beads with high adsorption capacity might be good candidates for industrial pollutant treatments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 187, 1 May 2018, Pages 85-93
نویسندگان
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