Selective Molecular Separation on Ti3 C2 Tx -Graphene Oxide Membranes during Pressure-Driven Filtration: Comparison with Graphene Oxide and MXenes

ACS Applied Materials & Interfaces
Kyoung Min KangHee-Tae Jung

Abstract

In this work, we prepared 90 nm thick Ti3C2Tx-graphene oxide (GO) membranes laminated on a porous support by mixing GO with Ti3C2Tx. 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 Ti3C2Tx membrane.

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Citations

May 11, 2019·Nanoscale·D I PetukhovAndrei A Eliseev
Feb 6, 2020·Chemistry, an Asian Journal·Youdong ChengDan Zhao
Jun 3, 2020·Advanced Materials·Hüseyin Enis KarahanTae-Hyun Bae
Nov 16, 2019·Chemistry, an Asian Journal·Guozhen LiuWanqin Jin
Oct 22, 2020·Nanoscale·Artem Iakunkov, Alexandr V Talyzin
Jan 16, 2021·Chemosphere·Yubing Sun, Ying Li
Feb 18, 2021·Nano Convergence·Mawada Mohammed TunesiBin Xu
Apr 24, 2020·Chemosphere·Yasir A J Al-HamadaniYeomin Yoon
Aug 14, 2021·Environmental Research·Mohammed BerkaniYasser Vasseghian
Aug 14, 2019·ACS Applied Materials & Interfaces·Seon Joon KimChi Won Ahn
Mar 7, 2020·ACS Applied Materials & Interfaces·Ameer Al-TemimyTristan Petit
Feb 13, 2020·Environmental Science & Technology·Haiping GaoYongsheng Chen
Sep 2, 2021·JACS Au·Manh-Thuong NguyenVassiliki-Alexandra Glezakou
Jan 28, 2022·Advanced Science·Fei WangYuxi Xu

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