期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 574, 期 -, 页码 383-390出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.05.179
关键词
AgCl/iron oxide composites; Photocatalyst; Visible light; Magnetic properties; Recycle
资金
- International Science & Technology Cooperation Program of China [2013DFG50150]
- Ministry of Science and Technology of China [2010DFA22770]
- National Natural Science Foundation of China [51079056/E090301]
In this work, AgCl/iron oxide composites were synthesized by a simple chemical precipitation method and calcining process. The composition of the material and magnetic and optical properties of the composites were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and vibrating specimen magnetometer (VSM) techniques, which confirms the high crystalline and magnetic behavior of the composites. UV-vis diffuse reflectance spectral (DRS) studies showed that the AgCl/iron oxide composites were of much higher absorption in longer wavelength region compared to bare iron oxide. The AgCl/iron oxide composites showed better performance in the photodegradation of organic dyes Rhodamin B (RhB) under the fluorescent lamp irradiation, which is remarkably superior to the N-TiO2. The degradation of microcystin-LR (MC-LR) and phenol was also found to be good owing to its effective electron-hole separation at AgCl/iron oxide interface. The separation of AgCl/iron oxide composites from the treated water was achieved by an external magnetic field as c-Fe2O3 exhibits enough magnetic power to facilitate the separation. (C) 2013 Elsevier B.V. All rights reserved.
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