Dataset Information


A Novel Fabrication Approach for Multifunctional Graphene-based Thin Film Nano-composite Membranes with Enhanced Desalination and Antibacterial Characteristics.

ABSTRACT: A practical fabrication technique is presented to tackle the trade-off between the water flux and salt rejection of thin film composite (TFC) reverse osmosis (RO) membranes through controlled creation of a thinner active selective polyamide (PA) layer. The new thin film nano-composite (TFNC) RO membranes were synthesized with multifunctional poly tannic acid-functionalized graphene oxide nanosheets (pTA-f-GO) embedded in its PA thin active layer, which is produced through interfacial polymerization. The incorporation of pTA-f-GOL into the fabricated TFNC membranes resulted in a thinner PA layer with lower roughness and higher hydrophilicity compared to pristine membrane. These properties enhanced both the membrane water flux (improved by 40%) and salt rejection (increased by 8%) of the TFNC membrane. Furthermore, the incorporation of biocidal pTA-f-GO nanosheets into the PA active layer contributed to improving the antibacterial properties by 80%, compared to pristine membrane. The fabrication of the pTA-f-GO nanosheets embedded in the PA layer presented in this study is a very practical, scalable and generic process that can potentially be applied in different types of separation membranes resulting in less energy consumption, increased cost-efficiency and improved performance.


PROVIDER: S-EPMC5548761 | BioStudies | 2017-01-01

REPOSITORIES: biostudies

Similar Datasets

2016-01-01 | S-EPMC5457272 | BioStudies
| S-EPMC7558336 | BioStudies
| S-EPMC7466004 | BioStudies
1000-01-01 | S-EPMC4770410 | BioStudies
1000-01-01 | S-EPMC5493691 | BioStudies
2018-01-01 | S-EPMC6644365 | BioStudies
| S-EPMC7303209 | BioStudies
1000-01-01 | S-EPMC4239577 | BioStudies
2016-01-01 | S-EPMC5295191 | BioStudies
1000-01-01 | S-EPMC6315452 | BioStudies