| Co3+掺杂LaFeO3的制备及光催化降解硝基苯的性能研究 |
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| 引用本文： | 梁英,田志高,刘华俊,李玥.Co3+掺杂LaFeO3的制备及光催化降解硝基苯的性能研究[J].化工新型材料,2012,40(7):85-86,102. |
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| 作者姓名： | 梁英 田志高 刘华俊 李玥 |
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| 作者单位： | 湖北文理学院化学工程与食品科学学院,襄阳,441053 |
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| 基金项目： | 湖北省自然科学基金，湖北省教育厅科研重大项目，教育部重点实验室开放研究基金，湖北省教育厅科技创新团队项目 |
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| 摘 要： | 以La(NO3)3、Fe(NO3)3.9H2O和Co(NO3)2.6H2O为原料,采用柠檬酸络合法制备了纯LaFeO3和掺杂Co3+的LaFeO3纳米粉体,通过XRD和SEM等手段对样品进行表征,以硝基苯为目标降解物,考察催化剂的光催化降解活性。研究表明:煅烧温度为800℃时制备的LaFeO3样品对硝基苯溶液的脱色率达47.02%;而采用Co3+的掺杂增强了LaFeO3的光吸收特性,对LaFeO3的光催化性能有较大促进作用,且掺杂量为5%时效果最好,光降解时间1h时,对硝基苯的降解率可达76.26%。
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| 关 键 词： | 纳米LaFeO3 光催化降解柠檬酸络合法 Co3+掺杂 硝基苯 |
Preparation of Co3+ doping LaFeO3 and photocatalytic degradation of nitrobenzene |
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| Liang Ying
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Tian Zhigao
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Liu Huajun
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Li Yue.Preparation of Co3+ doping LaFeO3 and photocatalytic degradation of nitrobenzene[J].New Chemical Materials,2012,40(7):85-86,102. |
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| Authors: | Liang Ying Tian Zhigao Liu Huajun Li Yue |
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| Affiliation: | Liang Ying Tian Zhigao Liu Huajun Li Yue (School of Chemical Engineering and Food Science,Hubei University of Arts and Science,Xiangyang 441053) |
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| Abstract: | Pure LaFeO3 and Co3+-doped LaFeO3 nanoparticles were prepared using complexation with citric acid by La(NO3)3,Fe(NO3)3·9H2O and Co(NO3)2·6H2O as raw materials.The obtained powders were characterized by XRD,SEM,UV-Vis techniques.Photocatalytic degradation of simulative wastewater of nitrobenzene was preliminary studied using UV illuminated.The results showed that the nitrobenzene solution of photocatalytic decolorization rate was 47.02% which the sample was sintered at 800℃;and Co3+ doping LaFeO3 enhanced the photocatalytic degradation of nitrobenzene.LaFeO3 doped with 5% Co3+ showed the highest photocatalytic efficiency and the degradation rate of nitrobenzene could reach 76.26% for 1h. |
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| Keywords: | nano-LaFeO3 photocatalytic degradation citric acid Co3+ doping nitrobenzene |
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