TY - JOUR
T1 - Fabrication of graphene oxide-based membranes and their applications in water treatment
AU - Abdalla, Omnya
AU - Wahab, Md A.
AU - Abdala, Ahmed
N1 - Publisher Copyright:
© 2021 Bentham Science Publishers.
PY - 2021
Y1 - 2021
N2 - Membrane separation is at the forefront of the technologies for desalination and wastewater treatment. However, current membranes have inherent limitations, including permeability/ selectivity trade-off and fouling susceptibility. To overcome these limitations, a new generation of advanced membranes based on nanomaterials has emerged. Among the nanomaterials, Graphene Oxide (GO) is regarded as the most promising nanomaterials due to its favorable characteristics such as hydrophilicity, tunable surface chemistry, large surface area, mechanical stability, bacteriostasis, and biocidal activities. There are currently three types of graphene-based membranes, i.e., nanoporous graphene/GO, laminated GO, and mixed matrix membranes. The fabrication, applications, and limitations of the three classes of membranes are analyzed. After a brief introduction to membranes, graphene, GO, and GO functionalization, the recent advances in the fabrication of these membranes are present-ed. Relevant applications of these membranes in water treatment are discussed in light of the structure-performance relationship. Finally, the overall conclusion and our perspective on future research directions are provided.
AB - Membrane separation is at the forefront of the technologies for desalination and wastewater treatment. However, current membranes have inherent limitations, including permeability/ selectivity trade-off and fouling susceptibility. To overcome these limitations, a new generation of advanced membranes based on nanomaterials has emerged. Among the nanomaterials, Graphene Oxide (GO) is regarded as the most promising nanomaterials due to its favorable characteristics such as hydrophilicity, tunable surface chemistry, large surface area, mechanical stability, bacteriostasis, and biocidal activities. There are currently three types of graphene-based membranes, i.e., nanoporous graphene/GO, laminated GO, and mixed matrix membranes. The fabrication, applications, and limitations of the three classes of membranes are analyzed. After a brief introduction to membranes, graphene, GO, and GO functionalization, the recent advances in the fabrication of these membranes are present-ed. Relevant applications of these membranes in water treatment are discussed in light of the structure-performance relationship. Finally, the overall conclusion and our perspective on future research directions are provided.
KW - GO membranes
KW - Membrane fouling
KW - Mixed matrix membranes
KW - Nanoporous membranes
KW - Permea-bility
KW - Selectivity
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=85117432408&partnerID=8YFLogxK
U2 - 10.2174/1389201021666201020162604
DO - 10.2174/1389201021666201020162604
M3 - Review article
C2 - 33081684
AN - SCOPUS:85117432408
SN - 1389-2010
VL - 22
SP - 1686
EP - 1704
JO - Current Pharmaceutical Biotechnology
JF - Current Pharmaceutical Biotechnology
IS - 13
ER -