| 纳米TiO2掺杂贵金属Ag抑制蓝藻的生长 |
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| 引用本文： | 尹海川,柳清菊,林强.纳米TiO2掺杂贵金属Ag抑制蓝藻的生长[J].功能材料,2005,36(11):1718-1721. |
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| 作者姓名： | 尹海川 柳清菊 林强 |
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| 作者单位： | 昆明理工大学,国土资源工程学院,云南,昆明,650093;云南大学,材料科学与工程系,云南,昆明,650091;云南大学,材料科学与工程系,云南,昆明,650091;昆明理工大学,国土资源工程学院,云南,昆明,650093 |
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| 基金项目： | 国家高技术研究发展计划（863计划）资助项目（2002AA327090） |
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| 摘 要： | 制备了纳米TiO2和Ag掺杂纳米TiO2，研究了二者对抑制蓝藻生长的影响。结果表明，在太阳光照射下，Ag掺杂纳米TiO2能够破坏蓝藻藻囊；与纳米TiO2相比，能更有效地使蓝藻内叶绿素含量、光合速率和呼吸速率以及氧化物岐化酶（SOD）活性降低，超氧自由基增多；当Ag掺杂量为1％时，掺Ag纳米TiO2对蓝藻的抑制效果最好。
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| 关 键 词： | 纳米TiO2 蓝藻抑制 SOD 超氧阴离子 叶绿素 |
| 文章编号： | 1001-9731(2005)11-1718-04 |
| 收稿时间： | 2004-05-30 |
| 修稿时间： | 2005-08-25 |
Study on the inhibitory effect of Ag dopant on nano-TiO2 on growth of cyanobacteria |
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| YIN Hai-chuan,LIU Qing-ju,LIN Qiang.Study on the inhibitory effect of Ag dopant on nano-TiO2 on growth of cyanobacteria[J].Journal of Functional Materials,2005,36(11):1718-1721. |
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| Authors: | YIN Hai-chuan LIU Qing-ju LIN Qiang |
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| Affiliation: | 1. Faculty of Land Resource Engineering, Kunming University of Science and Technology,Kunming 650093,China;2. Department of Material Science and engineering, Yunnan University, Kumming 650091 ,China |
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| Abstract: | The inhibitory effects of nano-TiO2 and Ag dopant nano-TiO2 on the growth of cyanobacteria were studied. The current results have indicated that Ag/TiO2 causes damage in cyanobacteria wall under the sunlight. Compared with nano-TiO2, Ag/TiO2 was more effective in decreasing the content of chlorophyll, the rates of photosynthesis and photorespiration as well as superoxide dimutase activity, and increasing the content of O2^-. in cyanobacteria. In addition, the current study has shown that 1 % of Ag dopant nano-TiO2 exhibits the best inhibitory effect on the growth of cyanobacteria. |
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| Keywords: | nano-TiO2 inhibition of cyanobacteria growth superoxide dimutase O2^- chlorophyll |
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