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chemistrylover
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ºÏ³É¹ý³ÌÈçÏ£º To prepare sample S1, 26.3 mg of DEA were dissolved into 50 mL of distilled water to obtain a 5.0 mM DEA solution, and 37.2 mg of zinc nitrate hexahydrate were dissolved into 50 mL of distilled water to form a 2.5 mM zinc nitrate solution; the above two solutions and 0.35 mmol of OA were added into a reactor together. After the mixture stirred at room temperature for 30 min and the temperature was increased to 80 ¡ãC with continuous stirring for another 2.0 h, stable ZnO nanoparticles are formed in the solution. The as-prepared dispersion was filtered, and then the dispersion was centrifuged and as-obtained product was redispersed subsequently with 1-butanol, 1-propanol, and ethanol to remove any unreacted molecules. Finally, the QDs were obtained by centrifugation and then dispersed in water for further characterization. |
2Â¥2009-04-02 16:09:22
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wdwsnnu(½ð±Ò+0):²»»á°É£¬Ëû²»¸ºÔðÈÎÁË 1-26 23:06
chemistrylover(½ð±Ò+2): 2010-03-26 14:29
chemistrylover(½ð±Ò+2): 2010-03-26 14:29
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3Â¥2010-01-26 21:32:12
firebolt
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4Â¥2010-01-27 08:42:07














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