Article
Mathematics, Applied
Qin Wang, Hongliang Li, Linbo Zhang, Benzhuo Lu
Summary: A novel stabilized finite element method named SUPG-IP is proposed in this research, demonstrating better performance in positivity preserving and robustness. In ion channel simulations, the SUPG-IP method outperforms the standard finite element and SUPG methods, successfully converging under a wide range of membrane potentials and ion concentrations.
APPLIED MATHEMATICS LETTERS
(2021)
Article
Mathematics, Applied
Guanghua Ji, Wanwan Zhu
Summary: In this paper, a weak Galerkin finite element method is proposed for solving the time-dependent Poisson-Nernst-Planck equations. The error analysis of semidiscrete and fully discrete WG schemes is provided. The impact of the nonlinear coupling term in the equations is considered in the discrete schemes. Numerical experiments with different mesh shapes are conducted to verify the theoretical results.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2022)
Article
Engineering, Biomedical
Jiao Li, Jinyong Ying
Summary: A new stabilized finite volume element method based on the standard weak formulation is proposed in this paper to solve the convection-dominant issue in the Poisson-Nernst-Planck equations used for ion transport in channel proteins. Numerical tests on four ion-channel proteins with different boundary conditions show that the new technique improves the robustness of the solver and results in more reasonable concentration values, especially the maximal values.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2022)
Article
Mathematics, Applied
Yang Liu, Shi Shu, Huayi Wei, Ying Yang
Summary: The article proposes a virtual element method to numerically approximate the Poisson-Nernst-Planck equations, and shows that the method performs well on general polygonal elements.
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2021)
Article
Computer Science, Interdisciplinary Applications
Simo Wu, Chun Liu, Ludmil Zikatanov
Summary: The EAFE discretization method is proposed to solve the Heat-PNP equations, ensuring the computed charged density functions and temperature function are positive, and providing a thermodynamic consistent discrete energy estimate similar to the second law of the Heat-PNP system.
JOURNAL OF COMPUTATIONAL PHYSICS
(2021)
Article
Chemistry, Analytical
Roshanak Dolatabadi, Ali Mohammadi, Mostafa Baghani
Summary: The study focuses on the ion transport mechanism in electromembrane extraction (EME) and uses a 2D numerical simulation to analyze mass transfer behavior and analyte recovery. Factors such as initial analyte concentration, SLM thickness, applied potential, diffusion coefficient, and reservoir pH are considered as process variables. The model predicts that analyte diffusivity, distribution coefficient, and protonation levels in the solutions play key roles in EME.
ANALYTICA CHIMICA ACTA
(2021)
Article
Mathematics, Applied
Sungu Kim, Makrand A. Khanwale, Robbyn K. Anand, Baskar Ganapathysubramanian
Summary: This study presents a finite element based computational framework to model electrochemical systems. The framework accurately computes the current flux at the system boundaries and resolves the challenge of small boundary layers by utilizing a weak imposition of Dirichlet boundary conditions. The results show excellent agreement with strong imposition of boundary conditions and demonstrate that the weak imposition allows for the use of coarser meshes in flux calculations, reducing computational cost.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2022)
Article
Chemistry, Physical
Xiang Ji, Chun Liu, Pei Liu, Shenggao Zhou
Summary: This work proposes a new model for predicting thermal electrokinetics in electric double layer capacitors and successfully conducts numerical simulations and evaluations. The study finds that the thermal electrokinetics in EDLCs exhibit delayed dynamics and hysteresis diagrams with fast scan rates.
JOURNAL OF POWER SOURCES
(2022)
Article
Mathematics, Applied
Yiya Qiu, Lifeng Zhao
Summary: We construct a special C1, α blow up solution to the three dimensional system modeling electro-hydrodynamics, which is strongly coupled with incompressible Euler equation and Nernst-Planck-Poisson equation. Our construction lies on the framework established in Elgindi et al. (2021) and relies on a special solution to variant spherical Laplacian.
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
(2023)
Article
Mathematics, Applied
Ying Yang, Ruigang Shen, Mingjuan Fang, Shi Shu
Summary: This study examines a posteriori error estimates for a class of nonlinear steady-state Poisson-Nernst-Planck equations, obtaining global upper bounds and local lower bounds of the error estimators using a local averaging operator. Numerical experiments confirm the reliability and efficiency of the error estimators.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2022)
Article
Engineering, Chemical
Dung T. Nguyen, Van-Sang Pham
Summary: This work conducted a detailed study on the ion transport, factors controlling it, and its effect on the desalination efficiency of the return-flow ion concentration polarization desalination system through numerical simulation. The simulation results showed that increasing feeding flow rate increased the current and current utilization, decreased the salt removal ratio, and reduced the energy per ion removed. The findings provide valuable insights for optimizing the design and operation of the system.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Computer Science, Interdisciplinary Applications
Jinyong Ying, Ronghong Fan, Jiao Li, Benzhuo Lu
Summary: This paper introduces a new block preconditioner to improve the current PNP solvers, ensuring that the convergence rate is independent of mesh sizes. Additionally, by presenting solution decomposition schemes, singularities in the PNP equation when using zero initial guess for the Newton method are effectively isolated and solved.
JOURNAL OF COMPUTATIONAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Khalil Chennit, Najmeh Delavari, Samia Mekhmoukhen, Rassen Boukraa, Laure Fillaud, Samia Zrig, Nicolas Battaglini, Benoit Piro, Vincent Noel, Igor Zozoulenko, Giorgio Mattana
Summary: This article presents the first example of inkjet-printed, electrolyte-gated organic field-effect transistors fabricated on flexible polyimide substrates. The performance of inkjet-printed, coplanar devices is compared to those of transistors with a metallic wire gate electrode. Good quantitative agreement is achieved between simulation and experiments, indicating the potential use of NPP simulations as predictive tools for device design and optimization. This study opens up avenues for the development of low-cost, flexible sensors and circuits.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Mathematics, Applied
Claudio I. Correa, Gabriel N. Gatica, Ricardo Ruiz-Baier
Summary: In this paper, a Banach spaces-based framework is used to introduce and analyze new mixed finite element methods for solving the coupled Stokes and Poisson-Nernst-Planck equations. The elimination of fluid pressure and the introduction of new unknowns such as electric field and total ionic fluxes are discussed. The well-posedness of the continuous formulation and the existence and uniqueness of solutions for the Galerkin scheme are proved using various mathematical theorems and smallness assumptions on the data. A priori error estimates, convergence rates, and numerical experiments are provided to validate the theoretical results and demonstrate the balance-preserving properties of the proposed methods.
ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS
(2023)
Article
Computer Science, Interdisciplinary Applications
Dexuan Xie, Zhen Chao
Summary: This paper introduces a novel dielectric continuum ion channel model called the PNPSIC model, which utilizes the biological and geometrical characteristics of a single ion channel. A PNPSIC finite element solver is developed and implemented, demonstrating its convergence, efficiency, and high performance. The model is validated by experimental data and applied to electric current calculations.
JOURNAL OF COMPUTATIONAL PHYSICS
(2023)
Review
Environmental Sciences
F. Beolchini, M. Hekeu, A. Amato, A. Becci, A. B. Ribeiro, E. P. Mateus, A. Dell'Anno
Summary: Sediment contamination with polycyclic aromatic hydrocarbons is a major environmental concern worldwide, with remediation strategies mainly based on physico-chemical and biological approaches. Physico-chemical methods are efficient but costly, while biotechnological methods are more environmentally friendly, cost-effective, and time-consuming.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
M. M. Cerrillo-Gonzalez, M. Villen-Guzman, C. Vereda-Alonso, J. M. Rodriguez-Maroto, J. M. Paz-Garcia
Summary: The model describes the leaching process of LiCoO2 in acidic media with the participation of competing reactions including the effect of H2O2. It predicts the transition from kinetic to diffusion control and matches well with experimental data. The model can be used to design or optimize the extraction process and predict results under different conditions.
Article
Chemistry, Analytical
Joao Brinco, Alexandra Branco Ribeiro, Joao Cardoso, Marco Gomes da Silva
Summary: This work describes the development of a methodology for determining the concentration of pesticides in used containers and presents the findings of a monitoring campaign conducted between April 2018 and February 2021. The results showed that the triple rinsing practice had a greater effectiveness in reducing pesticide residue in plastic containers compared to other materials.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Henrik K. Hansen, Zenovia Neira, Claudia Gutierrez, Andrea Lazo, Pamela Lazo, Marcela E. Hansen, Mario Ollino, Cecilia Caneo, Lisbeth M. Ottosen
Summary: This study investigates the oxidation of As(III) to As(V) in copper smelter wastewater using in situ-generated ozone. The optimal conditions for efficient oxidation were determined as pH 2 and moderate oxygen flow rate. The complete oxidation of As(III) was achieved in both synthetic and real wastewater.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Environmental Sciences
P. E. Jensen, G. M. Kirkelund, J. Fritt-Rasmussen, L. M. Ottosen
Summary: This study presents an initial screening of electrodialytic remediation (EDR) for heavy metal-contaminated anaerobic freshwater sediments. The results indicate that EDR can successfully extract all investigated elements from freshwater sediments, with potential applications in remediation. The carbonate content is the main governing parameter affecting the remediation efficiency, with higher carbonate content sediments requiring longer treatment times. The stack setup showed superior performance in terms of energy consumption and remediation time compared to batch treatment.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Geochemistry & Geophysics
Ana T. Lima, Gunvor M. Kirkelund, Freeman Ntuli, Lisbeth M. Ottosen
Summary: Metals, including rare earth elements (REE), are crucial for low-carbon urban infrastructure. This study examines various waste resources and contaminated materials as sources of REE in urban settings. Coal fly ashes have the highest critical REE contents, while sediments from stormwater retention ponds show the highest leachable REE concentrations. Future efforts in REE resource extraction should consider the speciation of REE in wastes, not just the total contents.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2022)
Article
Environmental Sciences
Kristine B. Pedersen, Tore Lejon, Pernille E. Jensen, Lisbeth M. Ottosen, Marianne Frantzen, Anita Evenset
Summary: The study investigated the factors influencing metal leaching during submarine tailings discharge, revealing low leaching rates but highlighting the need to estimate the quantity of metals leached in planned discharge scenarios. Future climate change is predicted to increase metal leaching, underscoring the importance of monitoring metal concentrations in water to determine their fate.
MARINE POLLUTION BULLETIN
(2022)
Article
Engineering, Chemical
Rodrigo Ortiz-Soto, Daniela Leal, Claudia Gutierrez, Alvaro Aracena, Marcelo Leon, Andrea Lazo, Pamela Lazo, Lisbeth Ottosen, Henrik Hansen
Summary: Based on the use of electrokinetic remediation technique (EKR), this study assessed the migration of heavy metal contaminants from fresh mine tailings. The impacts of electric field intensity and pH on the migration of copper, nickel, and cobalt species were examined. It was found that under specific conditions of electric field intensity and pH, the removal rates of cobalt, copper, and nickel were 7%, neglectable, and 6% respectively. The highest concentrations by migration at the cathodic zone were 11%, 31%, and 30% respectively.
Article
Biochemistry & Molecular Biology
Henrik K. Hansen, Claudia Gutierrez, Jorge Leiva Gonzalez, Andrea Lazo, Marcela E. Hansen, Pamela Lazo, Lisbeth M. Ottosen, Rodrigo Ortiz
Summary: A combined electrodialysis and electrocoagulation process can simultaneously recover copper and remove arsenic from wastewater, making it a promising tool for treatment.
Review
Chemistry, Physical
Sara Tominc, Vilma Ducman, Wolfgang Wisniewski, Tero Luukkonen, Gunvor M. Kirkelund, Lisbeth M. Ottosen
Summary: This review provides an overview of methods to extract valuable resources from the ash fractions of various sources. It emphasizes the importance of tapping into secondary sources and prioritizes extraction technologies that have an optimum environmental profile. The review also focuses on potential applications for the mineral residues left after extraction.
Article
Green & Sustainable Science & Technology
Lisbeth M. Ottosen, Gunvor M. Kirkelund, Pernille E. Jensen, Kristine B. Pedersen
Summary: This paper investigates the optimization of experimental parameters for phosphorus extraction from secondary sources using the two-compartment electrodialytic extraction (2C-ED) method. The chemometric modeling analysis reveals the influence order of variables such as current, duration, L:S ratio, stirring velocity, and dispersion solution on phosphorus extraction. Contour plots are used to explore different phosphorus extraction strategies.
Article
Engineering, Environmental
Ana Rita Ferreira, Paula Guedes, Eduardo P. Mateus, Alexandra B. Ribeiro, Nazare Couto
Summary: This study investigated the electrochemical oxidation (EO) technology as an alternative tertiary treatment in wastewater treatment plants (WWTP) to remove contaminants of emerging concern (CECs) and Escherichia coli simultaneously. The results showed that the removal rate of CECs depended on their structure and physicochemical characteristics, as well as the electrode material and shape used. MMO with a higher surface area and circular-mesh electrode exhibited the highest removal efficiency for recalcitrant CECs (20-50%). Varying the current intensity had a minor effect on CECs removal. The overall removal efficiency of CECs exceeded 90% within 2 hours, with simultaneous removal of E. coli. The EO process was considered ecofriendly with a low estimated treatment cost of 1.1 euro/m3.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Analytical
Joao Brinco, Paula Guedes, Marco Gomes da Silva, Eduardo P. Mateus, Alexandra B. Ribeiro
Summary: This work reviews recently developed methodologies for multiclass pesticide residue analysis in soil and evaluates them with respect to Green Analytical Chemistry principles, cost, and time. The analysis highlights different extraction, clean-up, and determination techniques used in the field. QuEChERS was found to be the most commonly used extraction method, although other methods such as pressurized fluid extraction, ultrasound-assisted extraction, and simple solid-liquid partitioning are still widely employed. GC-MS and LC-MS are the standard analytical techniques, with LC-MS becoming more popular due to its versatility in analyzing poorly volatile pesticide residues. The study compared twelve representative methods using analytical eco-scale, AGREE metrics, as well as cost and time considerations. The results show that the choice of reagents and operational parameters has a greater impact on the greenness of a method than the extraction and determination techniques, while cost and time are more dependent on the techniques themselves.
MICROCHEMICAL JOURNAL
(2023)
Article
Environmental Sciences
Lisbeth M. Ottosen, Dines Thornberg
Summary: A new design for the two-compartment electrodialytic extraction (2C-ED) process has been developed for the simultaneous extraction of phosphorous and separation of heavy metals from sewage sludge ash (SSA). The new reactor design allows for the suspension of SSA at a low liquid-to-solid (L:S) ratio without settling, resulting in a more efficient use of the applied current compared to previous laboratory setups. This new design shows potential for scaling up the 2C-ED process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Jose Antonio Garcia, Maria Villen-Guzman, Jose Miguel Rodriguez-Maroto, Juan Manuel Paz-Garcia
Summary: This paper critically reviews different CO2 capture engineering pathways and technologies, providing technical information to select the most appropriate technology for specific processes and different carbon capture pathways. Additionally, it analyzes the cost of CO2 capture technologies and their future development trends.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
