| 溶胶-凝胶法制备铁酸铋及其可见光催化性能 |
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| 引用本文： | 曹枫,唐培松,陈海锋,潘国祥. 溶胶-凝胶法制备铁酸铋及其可见光催化性能[J]. 稀有金属材料与工程, 2010, 0(Z2) |
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| 作者姓名： | 曹枫 唐培松 陈海锋 潘国祥 |
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| 作者单位： | 浙江湖州师范学院; |
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| 摘 要： | 为了获得新型的窄带隙半导体BiFeO3,以硝酸铁、硝酸铋为主要原料,以无水乙醇和冰醋酸为溶剂,采用溶胶-凝胶法制备干凝胶,然后将干凝胶在氮气条件下、马弗炉中煅烧1h得到BiFeO3粉末样品。采用X射线衍射光谱(XRD)、差热(DTA)分析和漫反射吸收谱(DRS)对BiFeO3的物性进行表征,并以偶氮染料甲基橙作为模拟污水研究BiFeO3的可见光催化性能。结果表明:BiFeO3接近纯相、在832℃附近有一个相变峰,带隙为2.03eV,具有良好的可见光催化活性,是一类具有广泛应用前景的新型窄带隙半导体可见光催化剂。
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| 关 键 词： | BiFeO3 溶胶-凝胶法 可见光催化 |
Synthesis and Visible-Light Photocatalysis Capability of BiFeO_3 Powder by Sol-Gel Method |
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| Cao Feng,Tang Peisong,Chen Haifeng,Pan Guoxiang. Synthesis and Visible-Light Photocatalysis Capability of BiFeO_3 Powder by Sol-Gel Method[J]. Rare Metal Materials and Engineering, 2010, 0(Z2) |
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| Authors: | Cao Feng Tang Peisong Chen Haifeng Pan Guoxiang |
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| Affiliation: | Cao Feng,Tang Peisong,Chen Haifeng,Pan Guoxiang (Huzhou Teachers College,Huzhou 313000,China) |
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| Abstract: | In order to obtain new narrow-band gap semiconductor BiFeO3, BiFeO3 was synthesized by sol-gel method in ethanol and acetic acid with the Bi(NO3)3 and Fe(NO3)3 as raw material. The BiFeO3 xerogel powder prepared by a sol-gel method was sintered at 600 oC for 1 h in nitrogen atmosphere in a muffle. The BiFeO3 sampe was characterized by X-ray diffraction (XRD), DTA and diffuse reflective spectra (DRS). The photocatalytic activity of BiFeO3 was researched with azo dye methyl orange solution as simulation sewag... |
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| Keywords: | BiFeO3 sol-gel method visible-light photocatalysis |
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