کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1631188 | 1006619 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heterogeneous Membranes Modified with Nanoparticles of Inorganic Ion-Exchangers for Whey Demineralization
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Composite materials were obtained by modification of polymer ion exchange membranes with nanoparticles of zirconium hydrophosphate and hydrated zirconium dioxide. Empirical parameters related to porosity of the membranes and ion transport were proposed. Nanoparticles (4-20 nm) in clusters and channels of ion exchange polymer improve transport of counter-ions: transport number of cations increases from 0.46 to 0.78 under limiting current. The aggregates in non-transport pores are a barrier against organic matters. The composites were applied to whey electrodialysis. Current efficiency reaches 97% for K+, Na+, Ca2+, Mg2+ cations and 11-22% for HPO42− and H2PO4− anions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Today: Proceedings - Volume 2, Issue 6, 2015, Pages 3864-3873
Journal: Materials Today: Proceedings - Volume 2, Issue 6, 2015, Pages 3864-3873