Ultra-hydrophilic nanofiltration membranes fabricated via punching in the HTO nanosheets

Yao，Fangyi1; Zhang，Wenxiong2; Hu，Dengwei3; Li，Sen4; Kong，Xingang5; Uemura，Shinobu1; Kusunose，Takafumi1; Feng，Qi1

2023-02-01

10.1007/s42114-022-00579-z

Advanced Composites and Hybrid Materials   Impact Factor & Quartile

2522-0128

2522-0136

Nanoporous layered titanate (HTO) nanosheet membranes were fabricated via restacking nanoporous HTO nanosheets on a hydrophilic polytetrafluoroethylene (PTFE) filter substrate. Nanoporous HTO nanosheets were prepared by exfoliating a nanoporous HTO that was obtained by selectively dissolving BaTiO (BT) nanoparticles in a mesocrystalline BT/HTO nanocomposite in an HCl solution. The BT/HTO nanocomposites were synthesized by the solvothermal treatment of HTO platelike particles in a Ba(OH) solution. The pore size of the nanoporous HTO nanosheet membrane was controlled by the BT nanoparticle size in the BT/HTO nanocomposite. Meanwhile, the size of the BT nanoparticle was controllable by the solvothermal synthesis conditions of the BT/HTO nanocomposite, including the reaction temperature, Ba/Ti mole ratio, and solvent in the reaction system. Furthermore, we designed a self-adjusting membrane thickness process (SAMTP) to efficiently fabricate nanoporous HTO nanosheet membranes on the PTFE substrate. The rejection of solutes with different sizes and water permeance capacities demonstrated that the nanoporous HTO nanosheet membranes fabricated by the SAMTP possessed size-controlled nanopores with uniform size in the range of 1.5–100 nm, uniform nanometer-scale thicknesses, excellent hydrophilicity, high water permeance, and good durability. Thus, the fabricated nanoporous HTO nanosheet membranes would be excellent candidates for water treatment and molecule separation. Graphical Abstract: [Figure not available: see fulltext.] In a solvothermal soft chemical process to drill uniform nanopores in a layered titanate nanosheet (HTiO, HTO), a technique (SAMTP) was developed for fabricating nanoporous titanate nanosheet membranes for low energy consumption nanofiltration processes.

Hydrophilic separation membrane Inorganic nanoporous membrane Nanoporous layered titanate nanosheet Water treatment

SCI

English

Others

Japan Society for the Promotion of Science[21K04832];

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Composites

WOS:000893208300001

SPRINGERNATURE

2-s2.0-85143160310

Scopus

1.Department of Advanced Materials Science,Faculty of Engineering and Design,Kagawa University,Takamatsu-Shi,2217-20 Hayashi-Cho,761-0396,Japan
2.Institute for Solid State Physics,The University of Tokyo,Sayo,Hyogo,679-5148,Japan
3.College of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Baoji,1-Hi-Tech Avenue, Shaanxi,721013,China
4.Materials Science and Engineering,Southern University of Science and Technology,Nanshan,Shenzhen,1088 Xueyuan Avenue, Guangdong,518055,China
5.School of Materials Science and Engineering,Shaanxi University of Science and Technology,Shaanxi,Weiyang, Xi’an,710021,China

Yao，Fangyi,Zhang，Wenxiong,Hu，Dengwei,et al. Ultra-hydrophilic nanofiltration membranes fabricated via punching in the HTO nanosheets[J]. Advanced Composites and Hybrid Materials,2023,6(1).

Yao，Fangyi.,Zhang，Wenxiong.,Hu，Dengwei.,Li，Sen.,Kong，Xingang.,...&Feng，Qi.(2023).Ultra-hydrophilic nanofiltration membranes fabricated via punching in the HTO nanosheets.Advanced Composites and Hybrid Materials,6(1).

Yao，Fangyi,et al."Ultra-hydrophilic nanofiltration membranes fabricated via punching in the HTO nanosheets".Advanced Composites and Hybrid Materials 6.1(2023).