کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4989300 1455978 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cross-linked graphene oxide membrane having high ion selectivity and antibacterial activity prepared using tannic acid-functionalized graphene oxide and polyethyleneimine
ترجمه فارسی عنوان
غشاء اکسید گرافین متقاطع با داشتن انتخاب یون بالا و فعالیت ضد میکروبی تهیه شده با استفاده از اکسید گرافین و پلی اتیلنیمین
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی


- The robust GO membrane was prepared by cross-linking process using TA-GO and PEI.
- The cross-linked GO membrane showed excellent ions separation performance.
- The cross-linked GO membrane containing TA showed excellent antibacterial activity.

A covalently cross-linked graphene oxide (GO) membrane was prepared by a facile vacuum filtration method followed by a cross-linking process using tannic acid-functionalized GO (TA-GO) and hyperbranched polyethyleneimine (PEI). The TA-GO was prepared by a simple and environmentally friendly method using GO and a renewable plant-based polyphenol, tannic acid (TA), and it was covalently cross-linked by PEI via the reaction between catechol groups in TA and amine groups in PEI to form covalent bonds in a weak alkaline environment producing the cross-linked GO membrane. The cross-linked GO membrane showed excellent dimensional stability and ions separation performance. In particular, the cross-linked GO membrane containing TA showed excellent antibacterial activity against Escherichia coli (E. coli) due to the intrinsic bactericidal properties of the TA moieties. Furthermore, the membrane exhibited higher water flux and rejections toward NaCl and MgSO4 than the commercial nanofiltration (NF) membranes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 521, 1 January 2017, Pages 1-9
نویسندگان
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