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分别在MgCl2和NaCl稀溶液中,用AFM研究了四方相ZrO2纳米涂层的表面排斥力随作用距离的变化关系。当作用距离较远时,表现为长程排斥力,当作用距离较近时,为强烈的短程排斥力。Mg2+在ZrO2纳米涂层表面具有特征吸附,而Na+却没有发生特征吸附,表现出惰性电解质的特征。可以排除Cl-的特征吸附的可能性。随着MgCl2浓度的增大,渗透通量呈明显下降的趋势。随着NaCl浓度的增大,渗透通量呈稍有增大的趋势。膜的表面态(结构)与不同结构的水分子的相互作用是决定渗透通量的主要内在因素。
致谢:衷心感谢作者的导师蔡启瑞老师(中科院资深院士)曾给予的指导。

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分别在MgCl2和NaCl稀溶液中,用AFM研究了四方相ZrO2纳米涂层的表面排斥力随作用距离的变化关系。

The relationship between surface repulsion and distance of the nano coating material made of ZrO2 was examined by using AFM on the tetragonal oxide phase submerged in diluted MgCl2 and NaCl solutions.
2楼2011-01-20 01:03:53
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bingd600420(金币+25, 翻译EPI+1): 非常感谢! 2011-01-20 12:23:13
MgCl2 and NaCl respectively in dilute solution, with AFM research the tetragonal phase coating surface ZrO2 nano repelling force with the changing relations between the effective distance. When the effect distance is farther, performance for long-range repelling force, when the effect distance is close, for strong short-range repelling force. Mg2 + ZrO2 nano coating surface has the characteristics of adsorption, while making + did not produce feature adsorption, show inert solid electrolyte characteristics. Can eliminate Cl - features adsorption of possibilities. Along with the increase of MgCl2 concentration, permeate flux show clear downward trend. Along with the increase of concentration NaCl, permeate flux is slightly increasing trend. Membrane surface state (structure) and different structure of water molecules interactions are decided the main internal factors of infiltration flux.
Acknowledgement:  thank the authors mentor CaiQiRui teacher of Senior academician of Chinese academy of sciences
3楼2011-01-20 09:00:34
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