| Al2O3自电解质溶液中吸附CrO4^2^-的特性研究 |
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| 引用本文： | 木冠南,侯秀英. Al2O3自电解质溶液中吸附CrO4^2^-的特性研究[J]. 化学学报, 1988, 46(2): 172-175 |
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| 作者姓名： | 木冠南 侯秀英 |
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| 作者单位： | 云南大学化学系 |
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| 摘 要： | 本文特别延长了pH范围(2-10),详细研究pH、温度、外加正负离子对CrO4^2^-吸附量的影响,说明这种吸附主要是以离子交换方式进行的,并认为表面活性点是产生这类吸附的重要原因.
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| 关 键 词： | 氧化铝 吸附 离子交换 铬酸盐P 电解质 表面活性 阴离子 |
Characteristic study of adsorption of chromate anion from electrolytic solution on alumina |
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| MU GUANNAN,HOU XIUYING. Characteristic study of adsorption of chromate anion from electrolytic solution on alumina[J]. Acta Chimica Sinica, 1988, 46(2): 172-175 |
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| Authors: | MU GUANNAN HOU XIUYING |
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| Abstract: | The adsorption isotherms of chromate (CrO42-) from electrolytic solution (0.01M NaCl) on Al2O3 were determine at various pH (2-10) and concns. Max. adsorption occurs at pH u4.5. Adsorption of chromate decreases to 0 near the PZC (pH 9). The presence of some anions tends to decrease chromate adsorption. The order is citrate > PO43- > SO42- > NO3-. The presence of some cation tends to increase chromate adsorption. The order is Ba2+ > Ni2+ > K+. Chromate adsorption is not influenced by temperature These results are explained and the adsorption mechanism is discussed. |
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| Keywords: | ALUMINIUM OXIDE ADSORPTION ION EXCHANGING CHROMATE P ELECTROLYTE SURFACE ACTIVITY ANION |
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