Article
Chemistry, Physical
Peter Machata, Monika Hofbauerova, Yaryna Soyka, Anastasiia Stepura, Daniel Truchan, Yuriy Halahovets, Matej Micusik, Peter Siffalovic, Eva Majkova, Maria Omastova
Summary: Ti3C2Tx MXene stands out from other 2D nanomaterials with its hydrophilicity, and the static contact angle value is independent of the background substrate wettability. In addition, a significant contact angle hysteresis is observed on a smooth surface, which is likely due to the chemical heterogeneity of surface terminal groups.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Acoustics
Jon Ander Sarasua, Leire Ruiz Rubio, Estibaliz Aranzabe, Jose Luis Vilas Vilela
Summary: The study focuses on using ultrasound for surface wettability control, with observations of enhanced wettability when liquids are exposed to low and high frequency vibration. Ultrasound can instantly adjust the contact angle by tuning the vibration amplitude, but there is still a lack of complete understanding about the physical principles behind this phenomenon.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Physical
Johanna Sygusch, Martin Rudolph
Summary: The study demonstrates the challenges of wettability analysis for particulate materials, which are strongly influenced by properties such as shape and size. Different fractions of glass particles with different shapes were modified with alcohols to investigate their wettability characteristics. Characterization methods, including analytic particle solvent extraction, static and dynamic contact angle measurements, and inverse gas chromatography, were used to study the influence of particle morphology on interfacial wetting behavior.
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Physical
Abraham Marmur
Summary: When calculating the surface tension of an ideal solid surface, it is suggested to measure the contact angles of standard liquids instead of directly using the calculated surface tension values. This approach provides a more accurate assessment of wettability of the solid surface, and the optimal choice of liquids and weights can be determined through experimentation.
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Gabriela Chwalik-Pilszyk, Anna Wisniewska
Summary: This study evaluates the effect of incubation in ophthalmic fluids on different types of contact lenses. The results show significant changes in dehydration and contact angle for lenses incubated in eye drops. Hydrogel lenses have higher surface free energy values. The differences in SFE values caused by different incubation environments are not significant.
Article
Mechanics
Valeria A. Dekhtyar, Alexander E. Dubinov
Summary: This paper experimentally studied the states of liquid drops on a horizontally elastic substrate that was cyclically stretched and weakened. A thin rubber band served as the substrate, and glycerin was used as the liquid. The study discovered a multi-branch hysteresis of the drop states, which could be adjusted by changing the time program for stretching and loosening the substrate tension.
Article
Crystallography
Monika Kuster, Janez Kovac, Zoran Samardzija, Matej Komelj, Sorour Semsari Parapari, Matejka Podlogar, Jean-Marie Dubois, Saso Sturm
Summary: Super-hydrophobic surfaces and coatings have been extensively studied to improve wetting properties. The time dependence of the oxide layer and surface adsorbates on the surface topography of an Al59Cu25Fe13B3 quasicrystalline material were analyzed in relation to changes in wettability. The study found that the growth of the oxide layer and surface roughness have an impact on the wetting behavior of the material.
Article
Engineering, Mechanical
Katarzyna Peta, Tomasz Bartkowiak, Przemyslaw Galek, Michal Mendak
Summary: The study investigates the relationship between wettability and surface microgeometry of 6060 aluminum alloy created by electric discharge machining (EDM), showing that wetting behavior of aluminum alloy can be easily controlled through appropriate EDM finishing.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Chemistry, Physical
Yihang Xiao, Jun Zheng, Yongming He, Lei Wang
Summary: Droplet and bubble wetting behaviors have significant differences, and surface roughness affects the wetting behaviors. The study reveals a critical Young contact angle for bubble wetting, above which apparent contact angle and contact angle hysteresis abruptly change. Increased roughness reduces bubble apparent contact angle and contact angle hysteresis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Materials Science, Multidisciplinary
Zahra Ebrahim Nataj, Asieh Sadat Kazemi, Yaser Abdi
Summary: The impact of surface fluorination on the wettability of carbon nanotubes was investigated, and the efficiency of fluorination treatments in tuning surface properties was confirmed through contact angle measurements and characterization techniques.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Energy & Fuels
A. Sakthivel, B. Thangagiri, K. Jeyasubramanian, J. Dhaveethu Raja, R. Saravana Sathiya Prabhahar, S. Parani Bramma Nayagi, N. Krishnamurthy
Summary: This study utilized non-wettable brown coal from Neyveli mines, India to effectively remove Cr(VI) after structural modification, converting it into a wettable form with hydrophilic properties. The chemically modified coal samples were successful in removing heavy metals like Cr(VI) from artificial pollutants, with reactivated coal samples also showing potential for removing fluoride ions from pollutants.
Article
Chemistry, Physical
Hemant Kumar, Siliveru Upendar, Ethayaraja Mani, Madivala G. Basavaraj
Summary: We propose a method to destabilize Pickering emulsions by transiently perturbing the oil-water interface through the transport of a mutually soluble solute. Visual observation and bright field optical microscopy are used to record the macroscopic and microscopic changes induced in these highly stable emulsions. The method is shown to be effective for different types of solutes and stabilizers, and for both oil-in-water (o/w) and water-in-oil (w/o) emulsions with different non-polar solvents as the oil phase.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhen Ye, Masayoshi Mizutani
Summary: This study presents a new method to predict the apparent contact angle on structured surfaces by utilizing the properties of the actual contact angle. Experiments confirm the validity of the proposed model, showing that the apparent contact angle is influenced only by the material at the triple contact line and remains independent of the contact area. The Wenzel equation is deemed inadequate for calculating the apparent contact angle on most structured surfaces.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Sreya Sarkar, Mohamad Jafari Gukeh, Tamal Roy, Harshad Gaikwad, Francesco Maria Bellussi, Shashwata Moitra, Constantine M. Megaridis
Summary: The interfacial energy between a solid and a liquid plays a crucial role in determining the macroscopic wettability of the surface by the fluid and is essential for controlling fluid-transport phenomena in commercial devices/products. While there are indirect or theoretical methods to quantify this energy, there is a lack of direct experimental procedures for measuring it on realistic rough surfaces. This study proposes a methodology that utilizes dynamic contact-angle experiments on rough surfaces to determine the interfacial energy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Chemical
Hajar Koubali, Mostafa El Louali, Hafida Zahir, Soukaina Soufiani, Mustapha Mabrouki, Hassan Latrache
Summary: Bacterial proliferation in the form of biofilm on a substrate is the result of physical, chemical, and biological processes. This study investigated the effects of different surfactants on the physicochemical properties of glass and polyethylene surfaces, as well as the adhesive behavior of Staphylococcus aureus, revealing varying impacts on the surfaces' characteristics.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Materials Science, Multidisciplinary
Weiqiang Yang, Xiaowen Liu
FUNCTIONAL MATERIALS LETTERS
(2019)
Article
Electrochemistry
Xiaowen Liu, Gang Liu, Changqiang Yu, Lan Xie, Yingjie Chen
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2019)
Article
Mineralogy
Xiaowen Liu, Changqiang Yu, Weiqiang Yang, Lan Xie, Song Liang
EUROPEAN JOURNAL OF MINERALOGY
(2019)
Article
Environmental Sciences
Gaogui Jing, Shuai Ren, Yuesheng Gao, Wei Sun, Zhiyong Gao
Article
Geochemistry & Geophysics
Ruohua Liu, Rui Xu, Li Wang, Feng Jiang, Jiao Jin, Zhiyong Gao, Honghu Tang, Wei Sun
Article
Geochemistry & Geophysics
Kaile Zhao, Chao Ma, Guohua Gu, Zhiyong Gao
Summary: The study found that the non-toxic depressant mixture exhibited high efficiency and selectivity in the flotation separation of chalcopyrite from galena, achieving efficient separation without the need for pH control. This could potentially address some of the environmental risks associated with conventional depressants used in industry.
Article
Chemistry, Physical
Mengjia Liu, Xiaowen Liu, Peng Wang, Xin Zhang
Summary: In this study, N-doped three-dimensional graphene aerogel with different weight of Ag particles (N-GA/Ag) was successfully prepared and exhibited excellent catalytic reduction of 4-nitrophenol and bactericidal performance against E. coli. Surface atomic densities of exposed main planes of Ag particles were calculated and found to be related to the catalytic activity, with the {111} crystal planes showing lower catalytic activity compared to {100} planes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Xiaowen Liu, Yuanyuan Liu, Xin Zhang, Xiaodan Miao
Summary: Synthesizing 3D N-doped graphene/bismuth (NGR/Bi) composites can efficiently catalyze the conversion of 4-nitrophenol (4-NP) to the utilizable intermediate 4-aminophenol (4-AP), enhancing catalytic performance. The doped nitrogen facilitated the uniform distribution of bismuth on graphene, improving catalyst surface area and porosity, which ultimately enhanced catalytic efficiency.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Xiaowen Liu, Xin Zhang, Yuanyuan Liu, Mengjia Liu, Xiaodan Miao, Yuanfan Wang
Summary: The crystal morphology of nanomaterials plays a significant role in their adsorption-photocatalytic activities. In this study, ZnS nanomaterials with different shapes were synthesized using ZnO as templates. It was found that short nanotubes exhibited excellent adsorption performance for methylene blue, while nanosheets showed the highest photocatalytic efficiency. Furthermore, the higher exposure ratio of {100} crystal planes on nanosheets not only resulted in a narrower bandgap but also provided more sites for adsorption and electron/hole trapping.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Geochemistry & Geophysics
Qingjun Guan, Ying Sui, Chufeng Liu, Yongjie Wang, Chuxiong Zeng, Weijian Yu, Zhiyong Gao, Zhenyue Zang, Ru-an Chi
Summary: The study delved into the characterization and leaching mechanism of rare earth elements (REEs) in phosphogypsum (PG) using sequential chemical extraction (SCE) method. It was found that REEs in PG were mainly present in residue state and metal oxide state. The maximum leaching efficiency for REEs was 65.6% under suitable leaching conditions.
Article
Materials Science, Ceramics
Yuanyuan Liu, Xiaowen Liu, Xin Zhang, Xiaodan Miao, Yuanfan Wang, Peng Wang
Summary: A novel double-carbon structure of SnO2 was successfully prepared to enhance the long-cycle stability of lithium-ion batteries. This structure exhibited excellent cycle performance and alleviated the volume variation during the lithiation and delithiation processes.
CERAMICS INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
Mohamed M. Abdel-Halim, Mohamed A. Abdel Khalek, Renji Zheng, Zhiyong Gao
Summary: In this study, SNLS was used as a selective flotation collector for the separation of dolomite and apatite. The effects of pH, condition time, and collector dose on the flotation performance were investigated, and the adsorption mechanism of SNLS on the minerals was studied. The results showed that SNLS had a higher preference for adsorbing on dolomite mineral.
Article
Geochemistry & Geophysics
Jianjun Wang, Zhiyong Gao, Wei Sun
Summary: This study proposes an efficient desorption and reuse method for Pb and BHA in Pb-BHA-NaOL collector in scheelite flotation. The results show that 80.71% Pb and 70.93% BHA can be efficiently desorbed through strong stirring for 15 min at pH 13.0 and a speed of 1600 r/min. The desorbed collector can save 67% Pb and 75% BHA, and the application results on real ore also demonstrate high feasibility.
Article
Geochemistry & Geophysics
Bowen Li, Wei Sun, Zhiyong Gao, Renji Zheng, Jian Cao
Summary: This study investigated the effectiveness of thiourea and its derivatives as flotation collectors for separating galena from sphalerite. It was found that these collectors exhibited good selectivity in batch flotation experiments with a single mineral. 1,1-diphenylthiourea (11DTA) was identified as the best choice, with a recovery difference of around 38% between galena and sphalerite at pH 8.
Article
Geochemistry & Geophysics
Mohamed M. M. Abdel-Halim, Ruihua Fan, Mohamed A. Abdel Khalek, Renji Zheng, Shihong Xu, Zhiyong Gao
Summary: Sodium N-lauroylsarcosinate (SNLS) was used as a collector for the selective separation of calcite and apatite. The experiments showed that SNLS had a higher selectivity and affinity towards calcite compared to apatite at a pH of 10. FTIR analyses and DFT calculations provided insights into the mechanism of SNLS as a collector for the flotation of phosphate minerals.