Article
Polymer Science
Yongsheng Luo, Chu Wang, Ai-Ping Pang, Xiang Zhang, Dayang Wang, Xiaolin Lu
Summary: The interfacial molecular structures of polyelectrolyte brushes grafted on solid substrates are influenced by electrostatic interaction and osmotic pressure. The presence of salts in the environment can affect the distribution of counterions and interfacial network structures of water molecules, leading to dissociation of polyelectrolyte chain segments and changes in chain conformation. In this study, it was observed that salts enhanced the ordering of interfacial water structures and caused electrostatic bridging among polyelectrolyte brush segments, resulting in a more disordered chain conformation.
Review
Mathematics, Applied
Yining Cao, Xiaoming Wang, Jin-Han Xie
Summary: This study rigorously proves the validity of the modified Rayleigh-Benard convection (MRBC) model derived from the classical doubly diffusive convection model under large Lewis number and order one Rayleigh ratio, as well as the relationship between the inertial free salt convection model (IFSC) and MRBC under the sublimit regime with a large Schmidt number.
PHYSICA D-NONLINEAR PHENOMENA
(2022)
Article
Biochemical Research Methods
Fatima Flores-Galicia, Alexander Eden, Antoine Pallandre, Sumita Pennathur, Anne-Marie Haghiri-Gosnet
Summary: This study investigates the influence of key parameters such as electrolyte concentration, surface charge density, and applied electric field on ion concentration polarization dynamics in micro-/nanofluidic devices. By tuning the system for analyte focusing at the charge, excluding microchannel, nanochannel electrical double layer (EDL) interface, the greatest enhancement is observed. Additionally, adding extra nanochannels oriented parallel to the electric field can increase perm-selectivity and enhance focusing at the EDL interfaces.
Article
Chemistry, Physical
Lingxiao Li, Junping Zhang
Summary: This study introduces highly salt-resistant and all-weather evaporators with high evaporation rates and excellent long-term salt-resistance, offering a new approach for efficiently obtaining clean water in different environments.
Article
Mechanics
Yining Cao, Xiaoming Wang, Jin-Han Xie
Summary: We have found through mathematical derivation that in the salt convection model, when the Schmidt number of the salt tends to infinity, with fixed Prandtl number and Rayleigh number ratio, the model becomes the inertial free salt convection model (IFSC). This limit is a singular case, causing simultaneous perturbations in both the velocity and temperature fields, and a rigorous mathematical justification involving two-time scale expansion is required.
MECHANICS RESEARCH COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yitao He, Fei Ding, Li Lin, Zhihong Wang, Zhe Lu, Yaohui Zhang
Summary: Lithium metal has been considered as an ideal negative electrode material for high-energy-density batteries, but the growth of lithium dendrites poses safety hazards and short cycle life issues. Concentration polarization caused by lithium ion consumption on the surface plays a key role in dendrite formation. Understanding the mechanism of dendrite growth and concentration polarization is crucial for developing strategies to mitigate these problems in lithium metal batteries.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Physical
Wenbo Han, Xueye Chen
Summary: This paper proposes a novel micro-nanofluidic preconcentrator with Koch fractal nanochannel surface, and the numerical simulation shows that increasing specific parameters can significantly enhance ion enrichment ratio, providing theoretical support for the design of trace detection instruments.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Song-Thao Le, Yi Gao, Tohren C. G. Kibbey, Denis M. O'Carroll
Summary: This study presents a tool for predicting the salt-dependent adsorption of PFAS compounds based entirely on chemical structure. It is of great value for predicting the real-world environmental behavior of these compounds.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Albert S. Kim
Summary: In this study, the fundamentals of constant-flux dead-end filtration were revisited and an analytical solution was developed to describe the relationship between interfacial concentration and observed rejection. The relationship between observed and intrinsic rejection ratios was found and verified using numerical calculations and experimental data.
Article
Multidisciplinary Sciences
Slawomir Grzegorczyn, Andrzej Slezak
Summary: This study used the method of measuring potential difference between two electrodes to investigate the electrochemical reactions in electrolyte solutions under bacterial cellulose membrane. The results showed that the voltage changes were influenced by the NaCl concentration in the solution and the position of the membrane. Based on the observed phenomena, it can be inferred that the effect of membrane position on gravitational convection is larger than that of diffusion.
Article
Engineering, Chemical
Charifa A. Hejase, Volodymyr V. Tarabara
Summary: This study used NF270 nanofiltration membranes and SDS-stabilized hexadecane to investigate the membrane fouling mechanisms by highly saline oil-water emulsions. The research found that oil caused a sudden decrease in permeate flux only for more saline feeds, and over the longer term, the additional hydraulic resistance due to a layer of oil droplets on the membrane surface became the dominant fouling mechanism.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Electrochemistry
Junjun Ma, Ge Shen, Ruina Zhang, Jianrui Niu, Jing Zhang, Xiaoju Wang, Jie Liu, Xiqing Li, Chun Liu
Summary: Flow electrode capacitive deionization (FCDI) is an effective method for high salinity wastewater desalination. However, limited adsorption capacity of electrode material leads to membrane concentration polarization, increased energy consumption, and discontinuity in desalination. In this study, ball milling technology was used to modify activated carbon (AC), resulting in enhanced salt removal rate and adsorption capacity. The modified surface properties of ball milled activated carbon (BAC), including increased oxygenated functional groups, electrostatic gravitation characteristics, and hydrophilicity, reduced concentration polarization during desalination. The larger electrolyte contact area, enhanced ions capacity, and higher energy normalized removal salt (ENRS) of BAC flow electrode compared to AC contribute to its improved performance. Ball milling technology shows great potential for large-scale modification of electrode materials.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Hans-Georg Steinrueck
Summary: A general relationship between salt concentration and x-ray absorption for binary electrolytes has been derived in this study. This relationship can be used to accurately determine transport coefficients in ion battery electrolytes and to test thermodynamic models. The relationship is independent of the type of electrolyte as long as specific conditions are met.
Article
Engineering, Electrical & Electronic
A. J. Amalanathan, R. Sarathi, N. Harid, H. Griffiths
Summary: This article discusses the static electrification of ester nanofluids and its application in transformers. The results show that the presence of surfactant in the nanofluid increases the streaming current. The streaming current is negative at the fluid-metal interface and positive at the fluid/pressboard interface. The study also simulates the streamline pattern and velocity magnitude under different disk velocities, and formulates a convection current model to identify the streaming current. Moreover, the addition of benzotriazole (BTA) and its influence on the interfacial behavior of nanofluids is discussed.
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2022)
Article
Food Science & Technology
Xiuyun Guo, Yawei Zhang, Muneer Ahmed Jamali, Zengqi Peng
Summary: The study examined the impact of L-Arginine on the emulsifying properties, interfacial behavior, and conformational characteristics of myofibrillar proteins at high and low salt concentrations, ultimately improving the stability of emulsions at low salt concentration. Results showed that L-Arginine increased the emulsifying activity and stability index, decreased emulsion stability index, and reduced droplet size in both high and low salt conditions. Additionally, L-Arginine promoted protein adsorption and decreased interfacial tension, demonstrating its ability to enhance the overall emulsion stability.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2021)