Fabrication of zinc oxide nanostructure coated membranes for efficient oil/water separation

被引：87

作者：

Huang, Allen ^{[1
]}

Chen, Liang-Hsun ^{[1
]}

Kan, Chia-Chi ^{[1
]}

Hsu, Tong-Yang ^{[1
]}

Wu, Su-En ^{[1
]}

Jana, Karun Kumar ^{[1
]}

Tung, Kuo-Lun ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2018年 / 566卷

关键词：

Oil/water separation; Underwater oleophobicity; Zinc oxide nanostructures; Chemical bath deposition; CHEMICAL BATH DEPOSITION; NANOROD ARRAYS; ZNO NANORODS; SURFACE; GROWTH; OIL; MESH; SUPEROLEOPHOBICITY; DISTILLATION; MICROSPHERES;

D O I：

10.1016/j.memsci.2018.09.007

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A hierarchically structured membrane was fabricated for oil/water separation by effectively depositing ZnO nanoparticles on a glass fiber (GF) membrane. Simple potassium permanganate solution treatment of the GF membranes resulted in the formation of an Mn-(hydroxy)oxide deposit seed layer on the membranes, and then, chemical bath deposition was applied to deposit zinc oxide nanoparticles on the membranes. The scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) mapping, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) showed that ZnO nanostructures were effectively deposited on the membrane surfaces. The ZnO coated membranes were underwater superoleophobic with oil contact angles greater than 150 degrees. An oil-water separation process driven by gravity demonstrated that the membranes could maintain a permeation flux greater than 250 L/m(2)-h with separation efficiencies above 98%. In addition, the ZnO coated membranes exhibited excellent oil/water separation performance in the reusability and durability tests. The results suggest that the ZnO coated membranes possess not only stability but also comprehensive applicability.

引用

页码：249 / 257

页数：9

共 59 条

[1]

Alvarado J.A., 2013, J NANOMATER, V2013, P167

[2] Hierarchical ZnO Nanowire Growth with Tunable Orientations on Versatile Substrates Using Atomic Layer Deposition Seeding [J].