| La_(1-x)Sr_xFeO_3光催化降解水溶性染料 |
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| 引用本文： | 杨秋华,傅希贤,王俊珍,白树林,孙艺环.La_(1-x)Sr_xFeO_3光催化降解水溶性染料[J].应用化学,2000(6). |
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| 作者姓名： | 杨秋华 傅希贤 王俊珍 白树林 孙艺环 |
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| 作者单位： | 天津大学理学院化学系!天津300072 |
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| 基金项目： | 国家自然科学基金资助项目!(5 9772 0 19) |
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| 摘 要： | 用柠檬酸法合成了钙钛矿型复合氧化物 La Fe O3,并按不同比例进行掺杂 ,制备了L a1-x Srx Fe O3( x=0 .0 1、0 .0 2、0 .0 3、0 .0 4、0 .0 5) .以荧光汞灯为光源测定了样品对不同染料的光催化降解活性 ,根据红外、紫外、光声光谱等技术对催化剂的分析结果 ,讨论了光催化性能及掺杂Sr2 对其活性的影响 ,结果表明 ,掺杂后 L a Fe O3的光催化活性明显提高
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| 关 键 词： | LaFeO_3 掺杂 La_(1-x)Sr_xFeO_3 水溶性染料 光催化活性 |
Photocatalytic Degradation of Water-soluble Dyes over La_(1-x)Sr_xFeO_3 |
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| YANG Qiu-Hua.,FU Xi-Xian,WANG Jun-Zhen,BAI Shu-Lin,SUN Yi-Huan.Photocatalytic Degradation of Water-soluble Dyes over La_(1-x)Sr_xFeO_3[J].Chinese Journal of Applied Chemistry,2000(6). |
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| Authors: | YANG Qiu-Hua FU Xi-Xian WANG Jun-Zhen BAI Shu-Lin SUN Yi-Huan |
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| Institution: | YANG Qiu-Hua.*,FU Xi-Xian,WANG Jun-Zhen,BAI Shu-Lin,SUN Yi-Huan |
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| Abstract: | The LaFeO 3 and a series of Sr-doped compounds La 1-xSr xFeO 3(x=0.01,0.02,0.03,0.04,0.05) were prepared by a citrate method and the photodegradation of some water-soluble dyes were carried out over them by using a 450 W Hg lamp as irradiation source. The catalytic activities of LaFeO 3 and La 1-xSr xFeO 3 were compared also with IR, UV- Vis and acoustic spectrum measurements. The results revealed that the doped compounds showed a obvious greater catalytic activity than undoped one for dye photodegradation. |
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| Keywords: | LaFeO_3 doping La_(1-x)Sr_xFeO_3 water-soluble dye photocatalytic activity |
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