| CuFe_2O_4光催化剂在模拟太阳光下对大肠杆菌杀灭作用的研究 |
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| 引用本文： | 张丽,黄可龙,陈浩,阎建辉.CuFe_2O_4光催化剂在模拟太阳光下对大肠杆菌杀灭作用的研究[J].山东化工,2010,39(11):7-9,12. |
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| 作者姓名： | 张丽 黄可龙 陈浩 阎建辉 |
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| 作者单位： | 湖南理工学院化学化工学院;中南大学化学化工学院; |
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| 基金项目： | 国家自然科学基金，湖南省教育厅优秀青年资助项目 |
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| 摘 要： | 采用溶胶-凝胶法制备了纳米CuFe2O4光催化剂,并通过TEM,XRD和UV-visDRS对其进行表征,表明样品是由粒径约为80nm的粒子组成,晶体结构均匀,具有良好的可见光吸收性能。以大肠杆菌为研究对象,考察了光催化剂在模拟太阳光照射下的杀菌性能。结果表明:CuFe2O4光催化剂杀菌性能随着焙烧温度的不同而变化,当焙烧温度为700℃时,杀菌效果最佳,光照60m in后,细菌的存活率仅为5.6%,而在相同条件下使用催化剂避光和不用催化剂光照时细菌存活率分别为94.4%和87.4%,说明该催化剂本身无毒性,是一种在可见光下有优良杀菌性能的光催化剂。
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| 关 键 词： | 大肠杆菌 CuFe2O4 光催化杀菌 模拟太阳光 |
Photocatalytic Inactivation of the Bacteria Escherichia Coli by Photocatalyst of CuFe2O4 Activated with Simulated Solar Light Irradiation |
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| ZHANG Li,HUANG Ke-long,CHEN Hao,YAN Jian-hui.Photocatalytic Inactivation of the Bacteria Escherichia Coli by Photocatalyst of CuFe2O4 Activated with Simulated Solar Light Irradiation[J].Shandong Chemical Industry,2010,39(11):7-9,12. |
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| Authors: | ZHANG Li HUANG Ke-long CHEN Hao YAN Jian-hui |
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| Affiliation: | ZHANG Li1,2,HUANG Ke-long2,CHEN Hao1,YAN Jian-hui1,2 (1.School of Chemistry and Chemical Engineering,Hunan Institute of Science and Technology,Yueyang 414000,China,2.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Photocatalysts of CuFe2O4 was synthesized by a facile citric acid(CA)-assisted sol-gel method,and characterised by transmission electron microscopy(TEM),X-ray diffraction(XRD) and UV-vis diffuse reflectance spectrum(UV-vis DRS).The sample prepared had a good solar light absorption ability and composed of almost uniform nanoparticles with a grain size of about 80nm and crystallized in a tetragonal crystal phase structure.Then the photocatalytic inactivation of escherichia coli under simulated solar light irr... |
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| Keywords: | escherichia coli CuFe2O4 photocatalytic inactivation simulated solar light irradiation |
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