| LaCoO_3光催化降解孔雀绿染料的研究 |
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| 引用本文： | 李江,卫芝贤,陈志敏.LaCoO_3光催化降解孔雀绿染料的研究[J].应用化工,2007,36(10):986-988. |
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| 作者姓名： | 李江 卫芝贤 陈志敏 |
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| 作者单位： | 1. 太原工业学院,应用化学系,山西,太原,030008
2. 中北大学,理学院化学系,山西,太原,030051 |
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| 摘 要： | 采用硬脂酸溶胶-凝胶法合成出钙钛矿型复合氧化物LaCoO3,用XRD,TEM等手段进行了表征,并以其为催化剂对染料孔雀绿进行降解实验。以高压汞灯为光源,研究了催化时间、催化剂用量、染料起始浓度、溶液pH值以及H2O2加入量对降解率的影响。结果表明,100 mL10 mg/L孔雀绿溶液用0.15 g催化剂降解2 h,降解率达到90.1%,加入适量的H2O2、提高溶液pH值均会提高染料的降解率。
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| 关 键 词： | LaCoO3 光催化 孔雀绿 降解 |
| 文章编号： | 1671-3206（2007）10-0986-03 |
| 修稿时间： | 2007-08-13 |
Study on the photocatalytic degradation of malachite green dye by LaCoO3 |
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| LI Jiang,WEI Zhi-xian,CHEN Zhi-min.Study on the photocatalytic degradation of malachite green dye by LaCoO3[J].Applied chemical industry,2007,36(10):986-988. |
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| Authors: | LI Jiang WEI Zhi-xian CHEN Zhi-min |
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| Affiliation: | 1. Department of Applied Chemistry, Taiyuan Institute of Technology, Taiyuan 030008, China; 2. Department of Chemistry, College of Science North University of China, Taiyuan 030051, China |
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| Abstract: | Perovskite oxides LaCoO3 was prepared by stearic acid sol-gel method.Using a luminous Hg lamp as irradiator,the degradation experiments of malachite green were carried out.The influences of reaction time,amount of catalyst,initial concentration of malachite green,pH of solution on degradation rate were investigated.The results show that photocatalytic activity of LaCoO3 is high and the degradation rate of malachite green was up to 90.1% with 0.15 g catalyst in 100 mL,10 mg/L malachite green degradating for 2 h,the degradation rate increased with increasing pH of solution and adding H2O2. |
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| Keywords: | LaCoO3 |
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