Selective Molecular Separation on Ti 3 C 2 T x -Graphene Oxide Membranes during Pressure-Driven Filtration

Comparison with Graphene Oxide and MXenes

Kyoung Min Kang, Daewoo Kim, Chang E. Ren, Kyeong Min Cho, Seon Joon Kim, Jung Hoon Choi, Yoon Tae Nam, Yury Gogotsi, Hee Tae Jung

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In this work, we prepared 90 nm thick Ti 3 C 2 T x -graphene oxide (GO) membranes laminated on a porous support by mixing GO with Ti 3 C 2 T x . This process was chosen to prevent the penetration of target molecules through inter-edge defects or voids with poor packing. The lattice period of the prepared membrane was 14.28 Å, as being swelled with water, resulting in an effective interlayer spacing of around 5 Å, which corresponds to two layers of water molecules. The composite membranes effectively rejected dye molecules with hydrated radii above 5 Å, as well as positively charged dye molecules, during pressure-driven filtration at 5 bar. Rejection rates were 68% for methyl red, 99.5% for methylene blue, 93.5% for rose Bengal, and 100% for brilliant blue (hydrated radii of 4.87, 5.04, 5.88, and 7.98 Å, respectively). Additionally, the rejections of composite membrane were compared with GO membrane and Ti 3 C 2 T x membrane.

Original languageEnglish
Pages (from-to)44687-44694
Number of pages8
JournalACS Applied Materials and Interfaces
Volume9
Issue number51
DOIs
Publication statusPublished - 2017 Dec 27

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Oxides
Graphene
Membranes
Molecules
Composite membranes
Coloring Agents
Dyes
Rose Bengal
Water
Methylene Blue
Defects

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Kang, Kyoung Min ; Kim, Daewoo ; Ren, Chang E. ; Cho, Kyeong Min ; Kim, Seon Joon ; Choi, Jung Hoon ; Nam, Yoon Tae ; Gogotsi, Yury ; Jung, Hee Tae. / Selective Molecular Separation on Ti 3 C 2 T x -Graphene Oxide Membranes during Pressure-Driven Filtration : Comparison with Graphene Oxide and MXenes. In: ACS Applied Materials and Interfaces. 2017 ; Vol. 9, No. 51. pp. 44687-44694.
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abstract = "In this work, we prepared 90 nm thick Ti 3 C 2 T x -graphene oxide (GO) membranes laminated on a porous support by mixing GO with Ti 3 C 2 T x . This process was chosen to prevent the penetration of target molecules through inter-edge defects or voids with poor packing. The lattice period of the prepared membrane was 14.28 {\AA}, as being swelled with water, resulting in an effective interlayer spacing of around 5 {\AA}, which corresponds to two layers of water molecules. The composite membranes effectively rejected dye molecules with hydrated radii above 5 {\AA}, as well as positively charged dye molecules, during pressure-driven filtration at 5 bar. Rejection rates were 68{\%} for methyl red, 99.5{\%} for methylene blue, 93.5{\%} for rose Bengal, and 100{\%} for brilliant blue (hydrated radii of 4.87, 5.04, 5.88, and 7.98 {\AA}, respectively). Additionally, the rejections of composite membrane were compared with GO membrane and Ti 3 C 2 T x membrane.",
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Selective Molecular Separation on Ti 3 C 2 T x -Graphene Oxide Membranes during Pressure-Driven Filtration : Comparison with Graphene Oxide and MXenes. / Kang, Kyoung Min; Kim, Daewoo; Ren, Chang E.; Cho, Kyeong Min; Kim, Seon Joon; Choi, Jung Hoon; Nam, Yoon Tae; Gogotsi, Yury; Jung, Hee Tae.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 51, 27.12.2017, p. 44687-44694.

Research output: Contribution to journalArticle

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