Correlation between surface charge and hydration on mineral surfaces in aqueous solutions: A critical review

Li, Hongliang; xu, wenzhong; Jia, Feifei; Li, Jianbo; Song, Shaoxian; Nahmad, Yuri

doi:10.1007/s12613-020-2078-0

Cited by 22 publications

(8 citation statements)

References 125 publications

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“…Fortunately, three-dimensional atomic force microscopy (3D-AFM) with a high sensitivity and resolution has recently been developed to map the solid-liquid interfaces. [16][17][18][19][20][21] The interfacial layer structures on crystalline surfaces and biological molecules in liquids have been successfully realized through 3D-AFM. [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] On the other hand, friction force microscopy (FFM), a contact mode of AFM for nanotribology, has the ability to measure the friction with pico-Newton force resolution and record the atomic resolution imaging of the solid surface simultaneously, 38 which might be helpful to probe the role of hydration layers in the hydration friction process.…”

Section: Nanoscale Horizonsmentioning

confidence: 99%

Probing the hydration friction of ionic interfaces at the atomic scale

Liu

Zhang

et al. 2022

Nanoscale Horiz.

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Section: Nanoscale Horizonsmentioning

confidence: 99%

Probing the hydration friction of ionic interfaces at the atomic scale

Liu

Zhang

et al. 2022

Nanoscale Horiz.

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“…Their results showed the existence of H2O had a considerable influence on the adsorption of reagents on the smithsonite surface. In addition, previous studies indicated that metal ions are solvated in solution and form complexes with H2O (Gowda and Benson, 1983;Teychené et al, 2019;Li et al, 2020). Based on this, Chen (2021) proposed the theory of flotation coordination chemistry and explained that the hydration of metal ions has a significant impact on adsorption.…”

Section: Introductionmentioning

confidence: 98%

Influence of hydrated Ca2+ and Mg2+ complexes on the sulfidization of smithsonite: Density functional based tight binding (DFTB+) study

Wu¹,

Tang²,

Chen³

et al. 2022

Physicochem. Probl. Miner. Process.

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Ca2+ and Mg2+ are the most dominating unavoidable ions in the smithsonite flotation. In this paper, the effect of Ca2+ (Mg2+) on the surface of smithsonite sulfidization in a system where water molecules are present was investigated using density functional based tight binding (DFTB+) simulations for the first time. The results indicated that the adsorption of hydrated Ca2+ complexes is stronger than that of hydrated Mg2+ complexes on the hydrated smithsonite (101) surface. In addition, at low concentrations of sodium sulfide, there is no adsorption of HS- on the surface pre-adsorbed with hydrated Ca2+ complexes, but only on the surface pre-adsorbed with hydrated Mg2+ complexes. At high concentrations of Na2S, S2- weakens the adsorption of hydrated Ca2+ complexes due to competitive adsorption, but the presence of S2- could desorb hydrated Mg2+ complexes from the surface. The results compared the differences in effects of Ca2+ and Mg2+ on smithsonite sulfidization, which could provide an atomic scale basis for researching the surface sulfidization of oxide minerals.

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“…Quartz is one of the most common minerals on earth, often associated with many high-value minerals. Quartz surface hydration plays a crucial role in many industrial processes, such as sewage sludge treatment (Świerczek et al, 2018), sands deposition (Huang et al 2019), petroleum (Pei et al 2018;Moslemizadeh et al 2018), mineral processing and wastewater treatment (Li et al 2020;Min, Peng, and Liu 2015). For example, regarding slime water treatment, when hydrated particles approach, repulsive force prevents them from getting closer owing to the overlap of hydration layers.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effect of ions on the surface hydration characteristics of fine quartz

Liu¹,

Min²,

Liu³

et al. 2022

Physicochem. Probl. Miner. Process.

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The fine quartz particle hydration and effects of metal ions on the hydration characteristics of fine quartz surface are investigated using the rheological experiment. Several important factors affecting hydration factors, such as particle sphericity, solution pH, ion species, ion concentration were investigated. The results show that viscosity and hydration factor of fine quartz suspension increase with the increase of solution pH. wherein quartz particles have more negative charges on the surface in alkaline environment and strong hydration repulsion; The introduction of metal ions enhances the hydration strength of fine quartz surface to a certain extent. In contrast, high valence and high concentration will increase the viscosity of fine quartz suspension, and the hydration factors of particle surface also increase. At the same ion concentration, the order of influence on the hydration factors of fine quartz particles is Mg 2+ > Ca 2+ > Na + > K + . This finding has been attributed to the combination of metal ion hydration and its adsorption on the mineral surface. This study will provide the theoretical guiding significance for the refractory coal slime water and other mineral processing wastewater containing quartz particles.

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Correlation between surface charge and hydration on mineral surfaces in aqueous solutions: A critical review

Cited by 22 publications

References 125 publications

Probing the hydration friction of ionic interfaces at the atomic scale

Probing the hydration friction of ionic interfaces at the atomic scale

Influence of hydrated Ca<sup>2+</sup> and Mg<sup>2+</sup> complexes on the sulfidization of smithsonite: Density functional based tight binding (DFTB+) study

Experimental study on the effect of ions on the surface hydration characteristics of fine quartz

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