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2Â¥2011-08-27 16:03:45
Carena
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sltmac: ·ÒëµÄºÜºÃ 2011-09-02 08:44:26
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sltmac(½ð±Ò+5): ÓÅÐãÓ¦Öú£¬ÔÙ¶îÍâ¸øÓè5BB½±Àø~ 2011-09-03 07:46:33
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sltmac(½ð±Ò+5): ÓÅÐãÓ¦Öú£¬ÔÙ¶îÍâ¸øÓè5BB½±Àø~ 2011-09-03 07:46:33
| The contamination of drinking water caused by the hepatotoxic metabolites microcystins (MCs) from cyanobacterial bloom has become a domestic and international environmental issue of common concern. On the basis of the previous studies of the porous carbon adsorption and photocatalytic degradation of MCs, we employed the ternary synchronous-assembly approach to prepare the composite oxide--ordered mesoporous carbon, which can efficiently remove the micro amount MCs in water and can be catalytic and regenerative under visible light. Microstructure characterization was used to analyze the reciprocal mechanism of carbon and oxide crystals in preparation in order to work out the effects of such parameters as solution pH, carbonization temperature and reactant ratio to the aperture, order and catalytic activity of the composite carbon materials. Besides, we applied the orthogonal experiment to determine the best preparation conditions of the composite carbon materials that are of specific pore size and high catalytic activity. We studied by the kinetics adsorption model the adsorption behavior of composite carbon materials in different pore size and analyzed the photocatalytic efficiency and regeneration performance of composite carbon materials to MCs, providing a new material and method for high efficient removal of micro amount MCs in water as well as a scientific basis for the design of the complex oxide-based mesoporous carbon molecular sieve with visible light photocatalytic activity. |

3Â¥2011-08-27 20:56:01
LittleBush
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4Â¥2011-08-28 08:47:30
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5Â¥2011-09-01 15:53:19









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