个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:中国科学院兰州化学物理研究所
学位:博士
所在单位:环境学院
办公地点:环境楼 B415
联系方式:Tel: 0411-84706658
电子邮箱:xyli@dlut.edu.cn
Surface photovoltage property of magnesium ferrite/hematite heterostructured hollow nanospheres prepared with one-pot strategy
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论文类型:期刊论文
发表时间:2012-06-05
发表刊物:COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
收录刊物:SCIE、EI
卷号:403
页面范围:35-40
ISSN号:0927-7757
关键字:Surface photovoltage property; Solvothermal synthesis; Magnesium ferrite/hematite; Hollow nanosphere
摘要:Magnesium ferrite/hematite heterostructured hollow nanospheres were successfully fabricated via a facile solvothermal method. The products were well characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high resolution transmission electron microscopy, Fourier transform infrared spectroscopy. UV-vis absorption spectroscopy and surface photovoltage spectroscopy. From the absorption edge in the UV-vis absorption spectrum of MgFe2O4/alpha-Fe2O3 hollow nanospheres, an optical band-gap energy of about 1.986 eV was estimated. Furthermore, it was observed that the heterostructured hollow nanospheres presented a remarkable surface photovoltage response in UV and visible spectral region, which was attributed to the effective formation of chemical interface between the two crystalline phases of MgFe2O4 and alpha-Fe2O3. (C) 2012 Elsevier B.V. All rights reserved.