Metal oxide and carbon nanomaterial based membranes for reverse osmosis and membrane distillation: A comparative review.
Environ Res
; 202: 111716, 2021 11.
Article
em En
| MEDLINE
| ID: mdl-34293311
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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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Purificação da Água
/
Nanoestruturas
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article