Chemical surface modification for RO membranes based on GO-mixed polymers for water desalination and biofouling study

被引：1
作者：
Shalaby, Marwa S. [1 ]
Abdallah, Heba [1 ]
Wilken, Ralph [2 ]
Christoph, Schmuser [2 ]
Shaban, Ahmed M. [3 ]
Mansor, Eman [3 ]
机构：
[1] Natl Res Ctr, Engn Res & Renewable Energy Inst, Chem Engn Dept, Cairo, Egypt
[2] Fraunhofer Inst Mfg Technol & Adv Mat IFAM, Dept Plasma Technol & Surfaces, Bremen, Germany
[3] Natl Res Ctr, Environm & Climate Change Res Inst, Water Pollut Res Dept, Cairo, Egypt
来源：
POLYMER ENGINEERING AND SCIENCE | 2024年 / 64卷 / 02期
关键词：
chlorine resistance; fouling problems; nanographene oxides; RO membranes grafting; water desalination; REVERSE-OSMOSIS MEMBRANE; GRAPHENE OXIDE GO; INTERFACIAL POLYMERIZATION; COMPOSITE MEMBRANES; POLYAMIDE MEMBRANES; HIGH-FLUX; PERFORMANCE; LAYER;
D O I：
10.1002/pen.26591
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The modification of conventional polyamide reverse osmosis (RO) membranes with grafted methacrylic acid in the presence of nanomaterial is disclosed. To decrease fouling, this study shows the effectiveness of grafting a hydrophilic methacrylic acid (PMAA) and graphene oxide (GO) nanosheet. The change in membrane surface after coating method with different layers was obvious. The results of the ATR-FTIR, SEM, AFM, contact angle investigations from side and enhanced rejection and permeability from other side proved that the grafting and modification processes had been successful. In comparison between different modifications based on grafting for thin film and blend RO membranes (RO T, RO P, and RO PG), it was found that the modified membrane nominated RO TG membranes showed less biofouling. The modified membrane with 1.25 weight percent PMAA concentration and 0.4 weight percent distributed GO had the lowest contact angle, the least fouling, the highest chlorine resistance, and improved desalination performance.
引用
收藏
页码：875 / 887
页数：13
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