Graphene, a two-dimensional hexagonal honeycomb carbon structure, is widely used in membrane technologies thanks to its unique optical, electrical, mechanical, thermal, chemical and photoelectric properties. The light weight, mechanical strength, anti-bacterial effect, and pollution-adsorption properties of graphene membranes are valuable in water treatment studies. Incorporation of nanoparticles like carbon nanotubes (CNTs) and metal oxide into the graphene filtering nanocomposite membrane structure can provide an improved photocatalysis process in a water treatment system. With the rapid development of graphene nanocomposites and graphene nanocomposite membrane-based acoustically supported filtering systems, including CNTs and visible-light active metal oxide photocatalyst, it is necessary to develop the researches of sustainable and environmentally friendly applications that can lead to new and groundbreaking water treatment systems. In this review, characteristic properties of graphene and graphene nanocomposites are examined, various methods for the synthesis and dispersion processes of graphene, CNTs, metal oxide and polymer nanocomposites and membrane fabrication and characterization techniques are discussed in details with using literature reports and our laboratory experimental results. Recent membrane developments in water treatment applications and graphene-based membranes are reviewed, and the current challenges and future prospects of membrane technology are discussed.
|Number of pages||32|
|Early online date||22 Jan 2023|
|Publication status||Published - Feb 2023|
Bibliographical noteCopyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Funding: This project was supported by the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant number 713694. The authors (Raghavan Chinnambedu Murugesan and Aleksey G. Rozhin) acknowledge the support of the Marie Skłodowska-Curie Individual Fellowship (MOFUS, # 795356) for this collaboration. These results are funded in part by the Ministerio de Ciencia e Innovación under projects RTC2019-007194-4, PID2021-122505OB-C31 and TED2021-129959B-C21, and in part by Gobierno Vasco/Eusko Jaurlaritza under projects IT1452-22 and ELKARTEK (KK-2021/00082, KK-2021/00092).
- graphene nanocomposite membrane filter
- carbon nanotubes
- photocatalytic membrane
- hybrid function membrane
- membrane fabrication
- water treatment