Article
Engineering, Chemical
Xiaozhen Ma, Cuong Nguyen, Anh Nguyen
Summary: The study investigates the effect of nearby particles on the bubble-particle detachment interaction, finding that nearby particles significantly affect the interface deformation and detachment force, restricting the movement of the three-phase contact line and leading to smaller changes during detachment.
MINERALS ENGINEERING
(2021)
Article
Environmental Sciences
Imran Khan Swati, Qazi Sohaib, Shuyun Cao, Mohammad Younas, Dan Liu, Jianzhou Gui, Mashallah Rezakazemi
Summary: Four ionic liquids were synthesized for the separation of gases CO2/N-2 and CO2/CH4 through supported ionic liquid membranes (SILMs), with [BSmim][tos] showing the highest solubility coefficient and permeability, as well as the highest selectivity values. The ILs synthesized for this work can be ranked as [BSmim][tos] > [BSmpy][tos] > [Bmim][Cl] > [Bpy][Cl], indicating their potential use for CO2 separation through SILMs.
Article
Engineering, Chemical
Liang Zhao, Li Zhuang, Zhijun Zhang
Summary: Contact angle is an important parameter for the hydrophobicity of solid surfaces, and it is widely used in assessing the wetting and floatability of mineral particles. A composite method combining image processing analysis and force balance calculation was proposed to directly measure the contact angle of particles. The accuracy and convenience of this method were confirmed through experiments showing good agreement between observed and calculated contact angles. The effects of particle size, hydrophobized time, and bubble size on the contact angle distribution were investigated using hydrophobized glass beads.
MINERALS ENGINEERING
(2023)
Article
Engineering, Chemical
Qiang Li, Long Liang, Jiakun Tan, Guangyuan Xie
Summary: Surface roughness plays a significant role in the hydrophobicity of particle surface and bubble attachment process. However, there is limited research on the influence of roughness when the surface is contaminated by slime. This study investigated the influence of micron surface roughness on slime coating between quartz particles and coal surface, as well as the bubble attachment process. The findings suggest that high roughness can mitigate slime coating due to larger elastic contact interaction.
MINERALS ENGINEERING
(2022)
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
Engineering, Chemical
Shihao Ding, Kang Yu, Qi He, Qinglin Yin, Xin Feng, Yumei Yong, Chao Yang, Yijun Cao, Xiahui Gui, Yaowen Xing
Summary: This study investigated the detachment of bubble-particle aggregates in both tangential and vertical directions using experimental and numerical simulation methods. Results indicate that the stability of bubble-particle aggregates is significantly lower in the tangential direction than in the vertical direction, making them more prone to detachment in the tangential direction during flotation. The detachment process can be divided into three stages: bubble stretching, bubble sliding, and bubble necking.
Article
Geochemistry & Geophysics
Alexandre Vale Oliveira, Jose Tadeu Gouvea Junior, Thiago Cesar Souza Pinto, Laurindo de Salles Leal Filho
Summary: This study investigates the effect of hydrostatic pressure on the bubble diameter and contact angle of quartz. The results indicate that a decrease in pressure leads to a decrease in contact angle and an increase in bubble diameter. The increase in bubble diameter also leads to an increase in bubble ascending velocity.
Article
Engineering, Chemical
Ting-Yi Huang, Jangwon Seo, Tzyy Haur Chong
Summary: In this study, the dynamics of wetting of commercial hydrophobic PTFE membranes by an immiscible IL was characterized using UTDR. The commercial PTFE membranes exhibited a poor anti-wetting property against concentrated THTDP IL due to the chemical affinity between IL and membrane, as concluded from various offline methods such as FTIR, CA, LEP, and FESEM.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Thomas Romeijn, Michael Behrens, Gavin Paul, Dongbin Wei
Summary: This paper provides essential information on the water and slurry flow behavior in a popular full-scale mineral separation spiral. The research compares the free surface shapes of water-only, chromite slurry, and magnetite slurry, highlighting operational spiral phenomena. The results and findings are applicable to spirals of other makes and models and can validate future spiral fluid flow simulations.
Article
Multidisciplinary Sciences
Joseph R. L. Cousins, Brian R. Duffy, Stephen K. Wilson, Nigel J. Mottram
Summary: Motivated by the need for greater understanding of systems involving interfaces between different phases, this study provides a comprehensive theoretical description for a specific system involving a nematic liquid crystal, a solid substrate, and a passive gas. By considering the breaking of anchoring at regions adjacent to the contact lines, the study investigates the transitions between various equilibrium states, including complete wetting, partial wetting, and complete dewetting, and uncovers the presence of both continuous and discontinuous transitions as well as contact-angle hysteresis.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Agriculture, Multidisciplinary
Marta Wojcieszak, Anna Syguda, Aneta Lewandowska, Agnieszka Marcinkowska, Katarzyna Siwinska-Ciesielczyk, Michalina Wilkowska, Maciej Kozak, Katarzyna Materna
Summary: A series of piperidinium-based herbicidal ionic liquids (HILs) were synthesized and characterized. The HILs consisted of cation 1-alkyl-1-methylpiperidinium and dicamba anion. The wettability and phytotoxicity of HILs were investigated, and the role of alkyl chain elongation in the surface properties of HILs was demonstrated.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Agriculture, Multidisciplinary
Marta Wojcieszak, Anna Syguda, Aneta Lewandowska, Agnieszka Marcinkowska, Katarzyna Siwinska-Ciesielczyk, Michalina Wilkowska, Maciej Kozak, Katarzyna Materna
Summary: A series of piperidinium-based herbicidal ionic liquids (HILs) were synthesized and characterized. The synthesized HILs consisted of cation 1-alkyl-1-methylpiperidinium and the commercially available herbicidal anion dicamba. The findings showed that HILs with longer alkyl chains had better wetting properties and that the wetting ability of HILs varied depending on the plant species. The study also provided evidence that alkyl chain elongation played a significant role in the evolution of surface properties of HILs, as demonstrated by zeta potential and atomic force microscopy measurements.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Mathematics, Interdisciplinary Applications
Mohammed Shqair, Ibrahim Ghabar, Aliaa Burqan
Summary: In this paper, a combination of residual power series and Laplace transform techniques efficiently solves a system of coupled fractional neutron diffusion equations with delayed neutrons, considering the non-Gaussian case of anomalous diffusion. The Laplace residual power series method (LRPSM) is simple and suitable for higher-order fractional differential equations without differentiation, conversion, or discretization.
FRACTAL AND FRACTIONAL
(2023)
Article
Chemistry, Physical
O. Oikonomidou, S. Evgenidis, C. Argyropoulos, X. Zabulis, P. Karamaoynas, M. Q. Raza, J. Sebilleau, F. Ronshin, M. Chinaud, A. I. Garivalis, M. Kostoglou, A. Sielaff, M. Schinnerl, P. Stephan, C. Colin, L. Tadrist, O. Kabov, P. Di Marco, T. Karapantsios
Summary: This work compares four different image processing algorithms for the analysis of image data obtained during the Multiscale Boiling Experiment of ESA. The algorithms were developed by four research teams to detect bubble edges and calculate geometric features. The efficiency of each approach varies with the nature of measurement, and the benchmark dataset is published for further testing.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Review
Computer Science, Interdisciplinary Applications
Nikolaos T. Chamakos, Dionysios G. Sema, Athanasios G. Papathanasiou
Summary: Research on wetting phenomena aims to understand the physics and fabricate surfaces with desirable wetting properties. However, conventional modeling approaches have limited applicability for complex surfaces, making it challenging to simulate real-life droplet behavior.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2021)
Article
Engineering, Chemical
Shan Wickramanayake, David Hopkinson, Christina Myers, Lei Hong, Jie Feng, Yongkoo Seol, Devon Plasynski, Matthew Zeh, David Luebke
JOURNAL OF MEMBRANE SCIENCE
(2014)
Article
Engineering, Civil
Preston S. Wilson, David P. Knobles, Peter H. Dahl, Andrew R. McNeese, Matthew C. Zeh
IEEE JOURNAL OF OCEANIC ENGINEERING
(2020)
Article
Acoustics
Matthew C. Zeh, Megan S. Ballard, Oskar Glowacki, Grant B. Deane, Preston S. Wilson
Summary: This study investigates the impact of glacier ice loss on sound propagation in Arctic fjords and infers the acoustic model and geometric shape of the brash ice surface through experimental simulations.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2022)
Article
Acoustics
Kevin M. Lee, Megan S. Ballard, Andrew R. McNeese, Preston S. Wilson, Gabriel R. Venegas, Mathew C. Zeh, Abdullah F. Rahman
Summary: Measurements of acoustic propagation were conducted in a seagrass meadow in a shallow lagoon for 65 hours in winter and 93 hours in summer. A sound source was deployed on the bottom and emitted chirps every 10 minutes, which were detected by a four-receiver hydrophone array. Changes in acoustic attenuation and energy levels were found between the seasons, likely due to variations in photosynthesis bubble production and seagrass biomass.
JASA EXPRESS LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Matthew Zeh, Shan Wickramanayake, David Hopkinson
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)