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Ag殼生長液的配制
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| 想請教一下各位有沒有誰看過這篇文獻Preparation, Characterization, and Optical Properties of Gold, Silver, and Gold−Silver Alloy Nanoshells Having Silica Cores(http://dx.doi.org/10.1021/la8016497)。里面涉及到K-Ag生長液的配制。就是把AgNO3加到K2CO3溶液中(原文:K-Gold, K-Silver, and K-Alloy Preparation. A potassium containing basic solution of gold salt (K-gold solution) was prepared by adding 0.05 g of potassium carbonate (K2CO3) to 200 mL of water, stirring for 15 min to dissolve the K2CO3 completely, and adding 4 mL of 1 wt % HAuCl4 ·H2O solution. The color of the mixture changed from yellow to colorless within 40 min.We prepared K-silver solutions (using 2 mL of 1 wt % AgNO3) and K-alloy solutions (using 1 mL of 1 wt % AgNO3 + 2 mL of 1 wt %HAuCl4 ·H2O) using analogous procedures.)今天我做一下,發(fā)現(xiàn)把AgNO3加入K2CO3溶液瞬間溶液變黃,像是乳液,用激光筆照過發(fā)現(xiàn)有光束,這就表明生成了納米粒子啊,紫外上在400nm左右有個小峰。各位大俠幫忙看看是什么問題。 |
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