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首页> 外文期刊>Journal of industrial and engineering chemistry >Study of H2O adsorption on sulfides surfaces and thermokinetic analysis
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Study of H2O adsorption on sulfides surfaces and thermokinetic analysis

机译：H2O在硫化物表面的吸附研究及热动力学分析

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Adsorption of water on mineral surfaces was studied using density functional theory and microcalorimetry technique. The calculation results show that galena and molybdenite are hydrophobic, while pyrite and sphalerite is hydrophilic. Thermokinetic analysis shows that the heat of adsorption is in decreasing order of pyrite, sphalerite, galena and molybdenite, which is in good agreement with the calculation results. The adsorption kinetics parameters of hydrophobic galena and molybdenite surfaces are close, while those of hydrophilic pyrite and sphalerite surfaces are very different. The adsorption rate of water on the sphalerite surface is larger than that of water on the pyrite surface.
机译：利用密度泛函理论和微量热法研究了水在矿物表面的吸附。计算结果表明方铅矿和辉钼矿是疏水的，而黄铁矿和闪锌矿是亲水的。热动力学分析表明，吸附热按黄铁矿，闪锌矿，方铅矿和辉钼矿的降序排列，与计算结果吻合良好。疏水方铅矿和辉钼矿表面的吸附动力学参数接近，而亲水黄铁矿和闪锌矿表面的吸附动力学参数却大不相同。闪锌矿表面上水的吸附速率大于黄铁矿表面上水的吸附速率。

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