Fabrication of MgFe2O4-ZnO heterojunction photocatalysts for application of organic pollutants

被引：69

作者：

Su, Na Ri ^{[1
]}

Lv, Pin ^{[2
]}

Li, Meijing ^{[2
]}

Zhang, Xiaolin ^{[2
]}

Li, Minghui ^{[2
]}

Niu, Jiasheng ^{[2
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

[2] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 122卷

基金：

中国国家自然科学基金;

关键词：

MgFe2O4-ZnO; Flower-like nanotube; Heterojunction; Photocatalyst; VISIBLE-LIGHT; ZNO; DEGRADATION; TIO2; NANOPARTICLES;

D O I：

10.1016/j.matlet.2013.12.106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel heterojunction MgFe2O4-ZnO was employed as a photocatalyst to photodegrade organic pollutants Rhodamine B (RhB). This heterojunction was prepared by two steps. First, ZnO flower-like nanotube bundles were synthesized by using a simple solution method at low temperature. Second, MgFe2O4 was coated on ZnO surfaces on the basis of a chemical co-precipitation method. The as-prepared samples were characterized with X-ray diffraction (XRD), UV-3150 double-beam spectrophotometer, field-emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), and high-resolution transmission (HRTEM). Photodegradation experiments results indicated that the obtained heterojunction MgFe2O4-ZnO exhibited higher photocatalytic activity than that of pure ZnO orMgFe(2)O(4). Furthermore, MgFe2O4-ZnO could be separated conveniently by using an external magnetic field. The enhanced photocatalytic ability of MgFe2O4-ZnO composites could be attributed to the interconnected heterojunction of MgFe2O4 and ZnO nanoparticles. (C) 2014 Published by Elsevier B.V.

引用

页码：201 / 204

页数：4

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