Single BiFeO3 and mixed BiFeO3/Fe2O3/Bi2Fe4O9 ferromagnetic photocatalysts for solar light driven water oxidation and dye pollutants degradation

被引：39

作者：

Gadhi, Tanveer A. ^{[1
,2
]}

Hernandez, Simelys ^{[1
]}

Castellino, Micaela ^{[3
]}

Chiodoni, Angelica ^{[3
]}

Husak, Thomas ^{[1
]}

Barrera, Gabriele ^{[4
]}

Allia, Paolo ^{[1
]}

Russo, Nunzio ^{[1
]}

Tagliaferro, Alberto ^{[1
]}

机构：

[1] Politecn Torino, DISAT, Dept Appl Sci & Technol, I-10129 Turin, Italy

[2] Mehran Univ Engn & Technol, US Pakistan Ctr Adv Studies Water, Jamshoro 76062, Pakistan

[3] Ist Italiano Tecnol, IIT Polito, Ctr Sustainable Future Technol, CSFT, Corso Trento 21, I-10129 Turin, Italy

[4] INRiM, Nanosci & Mat, Str Cacce 91, I-10135 Turin, Italy

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2018年 / 63卷

基金：

芬兰科学院;

关键词：

Ferromagnetic BiFeO3; Photocatalysis; Rhodamine B; Indigo carmine; Acid Blue 113; WASTE-WATER; HYDROTHERMAL SYNTHESIS; CONTROLLED FABRICATION; HOLLOW SPHERES; RHODAMINE-B; LARGE-SCALE; NANOPARTICLES; NANOFIBERS; PHOTODEGRADATION; NANOCOMPOSITES;

D O I：

10.1016/j.jiec.2018.03.004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple synthesis route is presented to obtain single BiFeO3 and mixed BiFeO3/Fe2O3 /Bi2Fe4O9 photocatalysts. The obtained samples were characterized to analyze their structural, magnetic, optical and physical-chemical properties. The role of additional phases, i.e. Bi2Fe4O9 and Fe2O3 in the BiFeO3 structure, was analyzed by investigating sunlight-driven water oxidation and degradation of different dye pollutants. The achieved results suggest formation of BiFe03/Fe2O3/Bi2Fe4O9 heterojunction-like interfaces, that induce lower e(-)/h(+). recombination rate, thus enhancing photoactivity than bare BiFeO3. Additionally, BiFeO3/Fe2O3/Bi2Fe4O9 has exclusive feature of being magnetically separated from treated media and its stability was demonstrated for at least 3 cycles of dye degradation. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：437 / 448

页数：12

共 77 条

[51] Photocatalytic properties of Bi2O3 powders obtained by an ultrasound-assisted precipitation method [J].