Metal oxide and carbon nanomaterial based membranes for reverse osmosis and membrane distillation: A comparative review
- Authors
- Khan, Aftab Ahmad; Maitlo, Hubdar Ali; Khan, Imtiaz Afzal; Lim, Daehwan; Zhang, Ming; Kim, Ki-Hyun; Lee, Jechan; Kim, Jong-Oh
- Issue Date
- Nov-2021
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Reverse osmosis; Membrane distillation; Membrane modification; Metal oxides; Carbon nanomaterials
- Citation
- ENVIRONMENTAL RESEARCH, v.202, pp.1 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL RESEARCH
- Volume
- 202
- Start Page
- 1
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140558
- DOI
- 10.1016/j.envres.2021.111716
- ISSN
- 0013-9351
- Abstract
- Commercial membranes typically suffer from fouling and wetting during membrane distillation (MD). In contrast, reverse osmosis (RO) can be subject to the fouling issue if applied for highly saline feed solutions containing foulants (e.g., organics, oils, and surfactants). Among the diverse treatment options, the nanomaterial-based membranes have recently gained great interest due to their advantageous properties (e.g., enhanced flux and roughness, better pore size distribution, and higher conductivity). This review focuses on recent advances in the mechanical properties, anti-fouling capabilities, salt rejection, and economic viability of metal oxide (SiO2, TiO2, and ZnO) and carbon nanomaterial (graphene oxide/carbon nanotube)–based membranes. Current challenges in applying nanomaterial-based membranes are also discussed. The study further describes the preparation methods, mechanisms, commercial applications, and economical feasibility of metal oxide– and carbon nanomaterial–based membrane technologies.
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