| 纳米TiO2掺杂贵金属Pt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Pt抑制蓝藻的生长[J].功能材料,2005,36(12):1934-1937. |
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| 作者姓名： | 尹海川 柳清菊 林强 |
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| 作者单位： | 云南省教育厅,云南,昆明,650223;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;海南大学,海南,海口,570228 |
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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： | 制备并研究了纳米TiO2和Pt掺杂纳米TiO2对蓝藻生长的影响。结果表明，在太阳光照射下，Pt掺杂纳米TiO2能够破坏蓝藻藻囊；与纳米TiO2相比，Pt掺杂纳米TiO2能够更有效地使蓝藻内叶绿素含量、光合速率和呼吸速率以及超氧化物岐化酶（SOD）活性降低，超氧自由基增多；当Pt掺杂量为1％时，掺Pt纳米TiO2对蓝藻的抑制效果最好。
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| 关 键 词： | Pt掺杂纳米TiO2 蓝藻抑制 SOD 超氧自由基 叶绿素 |
| 文章编号： | 1001-9731(2005)12-1934-04 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-08-02 |
Study on the inhibitory effect of Pt 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 Pt dopant on nano-TiO2 on growth of cyanobacteria[J].Journal of Functional Materials,2005,36(12):1934-1937. |
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| Authors: | YIN Hai-chuan LIU Qing-ju LIN Qiang |
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| Affiliation: | 1. Yunnan Educational Department, Kunming 650093, China; 2. Department of Material Science and Engineering, Yunnan University, Kunming 650091, China ;3. Hainan University, Haikou 570228,China |
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| Abstract: | nano-TiO2 and nano-TiO2 doping Pt powders were prepared and their inhibitory effects on the growth of cyanobacteria were studied. The results indicate that Pt/TiO2 causes damage in cyanobacteria ballonet under sunlight. Compared with nano-TiO2, TiO2 doping Pt was more effective in decreasing the content of chlorophyll, the rates of photosynthesis and photorespiration and superoxide dimutase activity, but increasing the content of the superoxide free radical in cyanobacteria.In addition, the study shows that 1% of Pt dopant nanoTiO2 exhibits the best inhibitory effect on the growth of cyanobacteria. |
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| Keywords: | Pt dopant nano-TiO2 inhibition of cyanobacteria growth SOD the superoxide free radical chlorophyll |
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