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Nanomaterials
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Gas–Liquid–Solid Interface Characterization and Targeted Regulation
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Gas–Liquid–Solid Interface Characterization and Targeted Regulation

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Physical Chemistry at Nanoscale".

Deadline for manuscript submissions: 12 September 2025 | Viewed by 1312

Special Issue Editor

Dr. Yangchao Xia

E-Mail Website
Guest Editor
National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou, China
Interests: coal/mineral/solid waste flotation separation; interfacial regulation with chemicals; micro-nano scale interface characterization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Gas–liquid–solid interface characterization and directional regulation play an important role in the fields of materials science, chemical engineering, energy technology, and environmental science. The research is not only important for understanding the interfacial behavior, but also provides the possibility of the accurate regulation and optimization of interfacial properties. Gas–liquid–solid interface is a widespread phenomenon in nature. Behind these phenomena are complex physical and chemical mechanisms, including surface tension, wettability, and interfacial reactions. The in-depth study of gas–liquid–solid interface behavior and regulatory mechanisms through scientific characterization methods can provide a theoretical basis for the development of related technologies.

This Special Issue will report research or advances in the characterization and targeted regulation of gas–liquid–solid interfaces, including the regulation of the structure, composition, or environmental conditions of these interfaces, as well as the interface wettability, adhesion, reactivity, and so on. Potential topics include, but are not limited to, the following:

  1. Directional regulation of gas–liquid–solid interfaces in fine mineral flotation separation;
  2. Interfacial regulation in the preparation of nanomaterials and functional materials;
  3. Interfacial regulation to improve reaction efficiency and product purity;
  4. Interface regulation to improve the energy conversion efficiency and stability;
  5. Interfacial regulation in wastewater treatment, oil–water separation, and air purification.

Dr. Yangchao Xia
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • surface adsorption
  • interface control
  • interface characterization
  • fine minerals flotation
  • nanomaterials
  • functional materials
  • separation engineering

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Published Papers (2 papers)

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Research

17 pages, 3301 KiB  
Article
Adsorption of Macrolide Antibiotics by Aged Microplastics of Different Sizes: Mechanisms and Effects
by Qi Li, Jingnan Tan, Haichao Sha, Ke Li and Xi Li
Nanomaterials 2025, 15(6), 467; https://doi.org/10.3390/nano15060467 - 19 Mar 2025
Viewed by 321
Abstract
Microplastics (MPs) and antibiotics are widely detected in water bodies. However, the adsorption behavior and mechanism of different particle size polystyrene (PS) MPs on macrolide antibiotics under natural aging remain to be elucidated. In this study, potassium persulfate (K2S2O [...] Read more.
Microplastics (MPs) and antibiotics are widely detected in water bodies. However, the adsorption behavior and mechanism of different particle size polystyrene (PS) MPs on macrolide antibiotics under natural aging remain to be elucidated. In this study, potassium persulfate (K2S2O8) was used to simulate the natural aging process of PS MPs. The adsorption behavior and mechanism of different size PS (80 and 400 μm) toward azithromycin (AZI), clarithromycin (CLA), and erythromycin (ERY) were investigated. Results of SEM showed that the surface roughness of aged PS MPs increased with the appearance of cracks, pits, and pores. XPS and FTIR analyses showed enhanced C=O functional groups in the aging process. The adsorption isotherm models revealed that the aging processes enhanced the AZI, CLA, and ERY adsorption tendency, as evidenced by the highest adsorption capacity for aged-80 μm (645, 665, 184 mg/kg) > original-80 μm (412, 420, 120 mg/kg), and aged-400 μm (280, 330, 110 mg/kg) > original-400 μm (197, 308, 100 mg/kg). Kinetic model fitting revealed that the adsorption process occurred in three stages: rapid, slow, and saturation. Adsorption kinetic curves for original and aged PS MPs conformed to the pseudo-second-order kinetic model. In contrast, the adsorption isotherm data fit the Langmuir model, indicating that the process primarily involved uniform monolayer chemical adsorption. Our findings provide insights into the substantial changes in the interactions between PS and macrolide antibiotics with aging processes. Full article
(This article belongs to the Special Issue Gas–Liquid–Solid Interface Characterization and Targeted Regulation)
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30 pages, 2176 KiB  
Article
Instability of Oldroyd-B Liquid Films with Odd Viscosity on Porous Inclined Substrates
by Qingqin Zhou, Quansheng Liu, Ruigang Zhang and Zhaodong Ding
Nanomaterials 2025, 15(3), 244; https://doi.org/10.3390/nano15030244 - 5 Feb 2025
Viewed by 674
Abstract
In this paper, we investigate the effect of singular viscosity on the stability of a thin film of Oldroyd-B viscoelastic fluid flowing along a porous inclined surface under the influence of a normal electric field. First, we derive the governing equations and boundary [...] Read more.
In this paper, we investigate the effect of singular viscosity on the stability of a thin film of Oldroyd-B viscoelastic fluid flowing along a porous inclined surface under the influence of a normal electric field. First, we derive the governing equations and boundary conditions for the flow of the film and assume that the film satisfies the Beavers–Joseph sliding boundary condition when it flows on a porous inclined surface. Second, through the long-wave approximation, we derive the nonlinear interfacial evolution equation. Then, linear and nonlinear stability analyses are performed for the interfacial evolution equation. The stability analyses show that the singular viscosity has a stabilizing effect on the flow of the film, while the strain delay time of the Oldroyd-B fluid, the electric field, and the parameters of the porous medium all have an unsteady effect on the flow of the film. Interestingly, in the linear stability analysis, the parameters of the porous medium have an unsteady effect on the flow of the film after a certain value is reached and a stabilizing effect before that value is reached. In order to verify these results, we performed numerical simulations of the nonlinear evolution equations using the Fourier spectral method, and the conclusions obtained are in agreement with the results of the linear stability analysis, i.e., the amplitude of the free surface decreases progressively with time in the stable region, whereas it increases progressively with time in the unstable region Full article
(This article belongs to the Special Issue Gas–Liquid–Solid Interface Characterization and Targeted Regulation)
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