张守海

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:化工学院

学科:高分子材料. 高分子化学与物理. 膜科学与技术

联系方式:0411-84986107

电子邮箱:zhangshh@dlut.edu.cn

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Preparation of a new 2D MXene/PES composite membrane with excellent hydrophilicity and high flux

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论文类型:期刊论文

发表时间:2017-01-01

发表刊物:RSC ADVANCES

收录刊物:SCIE、EI

卷号:7

期号:89

页面范围:56204-56210

ISSN号:2046-2069

摘要:MXene, a new 2D transition metal carbide-based material, possesses excellent electrical conductivity and hydrophilicity. In this study, Ti3C2Tx (where T represents a functional group (O, OH, and/or F)) was produced by etching and ultrasonicating Ti3AlC2. Then, it was used to prepare the MXene composite membrane via a simple filtration method performed at 0.2 MPa on a polyethersulfone (PES) ultrafiltration membrane. The MXene composite membrane shows excellent flux (115 L m(-2) h(-1)) and favorable rejection to Congo red dye (92.3% at 0.1 MPa). The membrane demonstrated rejection to inorganic salts below 23% with flux above 432 L m(-2) h(-1) at 0.1 MPa. Due to its loose lamellar structure, the composite membrane is able to demonstrate efficient permselectivity in the separation of dyes from salts. Furthermore, the composite membrane shows excellent hydrophilicity and flux because of the lamellar hydrophilic MXene.