Preparation of bismuth ferrite nanoparticles and their photocatalytic activity for MO degradation

doi:10.1109/RSETE.2011.5965767

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	Preparation of bismuth ferrite nanoparticles and their photocatalytic activity for MO degradation
	Zhang, Man 1,2; Yang, Hua 1,2; Xian, Tao 1,2; Wei, Zhiqiang 1,2; Feng, Wangjun 1
	2011
关键词	Azo dyes Bismuth Bismuth compounds Decomposition Differential scanning calorimetry Fourier transform infrared spectroscopy Iron compounds Light Nanoparticles Remote sensing Scanning electron microscopy Thermogravimetric analysis Bismuth ferrite nanoparticles Degradation of methyl oranges Diffuse reflectance spectroscopy Modified polyacrylamides Optical band gap energy Polyacrylamide gel method Thermal decomposition process Visible-light irradiation
DOI	10.1109/RSETE.2011.5965767
页码	6177-6180
英文摘要	A modified polyacrylamide gel method was used to fabricate Bi 2Fe4O9 nanoparticles. Thermogravimetric (TG) analysis, differential scanning calorimetry (DSC) analysis, fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) were used in combination to investigate the thermal decomposition process of xerogels and the formation of Bi2Fe4O9 phase. It is demonstrated that high-phase-purity Bi2Fe4O9 nanoparticles can be prepared at a calcining temperature of 750 °C. Scanning electron microscope (SEM) observation reveals that the prepared Bi 2Fe4O9 nanoparticles are nearly spherical in shape, exhibit a smooth surface, feature no agglomeration character, and have an average diameter of about 220 nm. Ultraviolet-visible diffuse reflectance spectroscopy was used to investigate the light-absorbing properties of Bi 2Fe4O9 nanoparticles, and the value of the optical bandgap energy is obtained to be 2.08 eV. The photocatalytic activity of Bi2Fe4O9 nanoparticles was evaluated by the degradation of methyl orange (MO), a typical azo dye. The experimental results reveal that the product exhibits a pronounced photocatalytic activity for the MO decomposition under ultraviolet and visible-light irradiation. © 2011 IEEE.
会议录	2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings
会议录出版者	IEEE Computer Society
语种	中文
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116264]
专题	理学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.School of Science, Lanzhou University of Technology, Lanzhou 730050, China 2.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Zhang, Man,Yang, Hua,Xian, Tao,et al. Preparation of bismuth ferrite nanoparticles and their photocatalytic activity for MO degradation[C]. 见:.