High-flux nanofiltration membranes prepared with β-cyclodextrin and graphene quantum dots

被引：67

作者：

Xue, Jing ^{[1
,2
]}

Shen, Jianliang ^{[1
,2
]}

Zhang, Runnan ^{[1
,2
]}

Wang, Fei ^{[1
,2
]}

Liang, Shuwei ^{[1
,2
]}

You, Xinda ^{[1
,2
]}

Yu, Qianqian ^{[1
,2
]}

Hao, Yufeng ^{[1
,2
]}

Su, Yanlei ^{[1
,2
]}

Jiang, Zhongyi ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2020年 / 612卷

基金：

中国国家自然科学基金;

关键词：

Graphene quantum dots; beta-Cydodextrin; Interfacial polymerization; Loose nanofiltration membrane; High-flux; FILM NANOCOMPOSITE MEMBRANE; ORGANIC FRAMEWORKS; WASTE-WATER; ANTIFOULING PROPERTIES; POLYAMIDE; PERFORMANCE; ZEOLITE; LAYER; TECHNOLOGY; REJECTION;

D O I：

10.1016/j.memsci.2020.118465

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, high flux beta-CD/GQDs nanofiltration (NF) membranes were prepared by interfacial polymerization with beta-cyclodextrin (beta-CD) as the aqueous monomer, graphene quantum dots (GQDs) as the additive and trimesoyl chloride (TMC) as the organic monomer. The addition of GQDs not only modulated the membrane surface properties, but also led to the formation of a loose selective layer due to the nonspecific hydrogen bonding interactions between GQDs and beta-CD. The pure water flux of the beta-CD/GQDs NF membranes increased from 122.2 to 474.7 L/m(2)h (at the pressure of 0.1 MPa) when the concentration of GQDs increased from 0 to 0.5 wt%, almost 3.9 times higher than that of the pristine beta-CD membrane. The dye rejection of Eriochrome Black T and Congo Red essentially remained above 93.0%. The beta-CD/GQDs NF membranes with superior filtration performance and excellent chlorine resistance hold great promise in dye wastewater treatment.

引用

页数：8

共 48 条

[1] Graphene oxide modified polyamide nanofiltration membrane with improved flux and antifouling properties [J].