Exploiting Synergetic Effects of Graphene Oxide and a Silver-Based Metal-Organic Framework To Enhance Antifouling and Anti-Biofouling Properties of Thin-Film Nanocomposite Membranes

被引：174

作者：

Firouzjaei, Mostafa Dadashi ^{[1
]}

Shamsabadi, Ahmad Arabi ^{[2
]}

Aktij, Sadegh Aghapour ^{[3
]}

Seyedfour, S. Fatemeh ^{[3
]}

Sharifian Gh, Mohammad ^{[4
]}

Rahimpour, Ahmad ^{[3
]}

Esfahani, Milad Rabbani ^{[1
]}

Ulbricht, Mathias ^{[5
]}

Soroush, Masoud ^{[2
]}

机构：

[1] Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA

[2] Drexel Univ, Dept Chem & Biol Engn, Philadelphia, PA 19104 USA

[3] Babol Noushirvani Univ Technol, Dept Chem Engn, Shariati Ave, Babol Mazandaran 4714871167, Iran

[4] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

[5] Univ Duisburg Essen, Lehrstuhl Tech Chem 2, D-45117 Essen, Germany

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 49期

基金：

美国国家科学基金会;

关键词：

anti-biofouling; antifouling; metal-organic framework; graphene oxide; thin-film nanocomposite membrane; REVERSE-OSMOSIS MEMBRANES; ULTRAFILTRATION MEMBRANE; ANTIBACTERIAL ACTIVITY; COMPOSITE MEMBRANES; HIGHLY EFFICIENT; WATER-TREATMENT; NANOPARTICLES; SURFACE; PERFORMANCE; NANOTECHNOLOGY;

D O I：

10.1021/acsami.8b12714

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thin-film composite (TFC) membranes still suffer from fouling and biofouling. In this work, by incorporating a graphene oxide (GO)-silver-based metal organic framework (Ag-MOF) into the TFC selective layer, we synthesized a thin-film nanocomposite (TFN) membrane that has notably improved anti-biofouling and antifouling properties. The TFN membrane has a more negative surface charge, higher hydrophilicity, and higher water permeability compared with the TFC membrane. Fluorescence imaging revealed that the GO-Ag-MOF TFN membrane kills Escherichia (E.) coli more than the Ag-MOF TFN, GO TFN, and pristine TFC membranes by 16, 30, and 92%, respectively. Forward osmosis experiments with E. coli and sodium alginate suspensions showed that the GO Ag-MOF TFN membrane by far has the lowest water flux reduction among the four membranes, proving the exceptional anti-biofouling and antifouling properties of the GO-Ag-MOF TFN membrane.

引用

页码：42967 / 42978

页数：12

共 68 条

[1] Toxicity of Graphene and Graphene Oxide Nanowalls Against Bacteria [J].