矿物表面特征和表面反应的研究现状及其应用

Study on the physical and reactive nature of mineral surfaces: advances and applications

介绍了矿物表面的化学物理性质及其研究工具 ,并对硫化物矿物的表面氧化、粘土矿物的表面吸附、硅酸盐矿物和碳酸盐矿物的表面溶解等表面反应的研究现状作了概括 .特别报道了黄铁矿表面反应研究的最新进展 ,包括黄铁矿氧化的反应动力学、黄铁矿表面锖色的指示意义、黄铁矿氧化过程中硫和重金属元素的迁移及其环境效应 .上述矿物的表面反应机理和动力学在环境评价与治理、研究全球气候变化等方面具有广泛的应用前景 .

Characterization of mineral surfaces with respect to their physical and reactive nature and related techniques is introduced in this paper. Some advances are summarized in the research of the surface reactions of minerals including the oxidation of sulfides, the surface adsorption of clay minerals, the surface dissolution of silicates and carbonates.Especially the advances in surface reaction on pyrite made by authors,involving the kinetics of pyrite oxidation,the indicative signification of supergenic color on pyrite surface and the mobility of sulfur and heavymetal and its effects on environment during weathering of pyrite are introduced.These reactive mechanisms and kinetics can be widely applied in the interpretation and remedy of ecological environments and the study of global change in climate.