Article
Engineering, Chemical
M. Trevisan, R. Ghidossi, P. Moulin
Summary: SiC membranes show satisfactory hydraulic and retention performances in winemaking process. They can produce clear and brilliant wines, retain wine microorganisms, achieve higher production flows compared to hollow fibers, while still preserving the interesting compounds of wines, and filter matrices that cannot be processed by hollow fibers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xiangru Song, ChungHyok Jo, Minghua Zhou
Summary: Membrane-like air-cathodes modified with different polyaniline through phase inversion method exhibited dual functions of interception and electrochemical degradation, and possessed good conductivity and porosity. Among them, the cathode with 25 wt% polyaniline showed the highest antibacterial effect and removal rate, as well as high water flux recovery and durability.
Article
Biotechnology & Applied Microbiology
Yair Kaufman, K. C. Hunt, Gabriel Hale, Matthew McClure, David Latulippe, Madhavi Sivan, Jack Wilson, Rachel Dorin, Yury Agroskin, Marty Siwak, Daniele Gerion
Summary: Membrane fouling by monoclonal antibodies (mAbs) is a challenge in virus-filtration processes, and the differences in fouling between different mAbs have not been fully explained. This study found that low concentration aggregates of mAbs can foul membranes through an adsorptive mechanism driven by hydrophobic forces. The charge of the mAbs plays a secondary role in fouling. These insights can potentially be used to mitigate fouling in other virus-filtration and/or ultrafiltration membranes.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Duc-Trung Tran, Julie Mendret, Jean-Pierre Mericq, Catherine Faur, Stephan Brosillon
Summary: This study investigated the anti-fouling performance of PVDF-TiO2 composite membranes in different types of synthetic feed solutions. The results showed that inorganic fouling was unlikely to occur on the membranes, except for the presence of a small amount of Cu2+ coexisting with HCO3- in the feed solution. The membranes also showed strong resistance to sodium alginate fouling, but less resistance to humic acid fouling. The study also found that the membranes did not show advantages in terms of separation efficiency when operated in photo-filtration mode.
Article
Pharmacology & Pharmacy
Pauline Beaumont, Arnaud Courtois, Tristan Richard, Stephanie Krisa, Chrystel Faure
Summary: Onion-type multi-lamellar liposomes were able to efficiently encapsulate epsilon Viniferin, with the adsorption filtration method showing significant advantages in encapsulation efficiency. The release kinetics of epsilon Vin from the liposomes demonstrated a slow and long-lasting release over a 77 day period.
Article
Environmental Sciences
Guangze Guo, Yemei Li, Shitong Zhou, Yujie Chen, Kampachiro Urasaki, Yu Qin, Kengo Kubota, Yu -You Li
Summary: This study utilized HSAnMBR for the treatment of waste activated sludge (WAS) and investigated the membrane operation characteristics and fouling mechanisms. The results revealed that polysaccharides and proteins were the main components of the foulant layer under high solid conditions, while phosphorus and magnesium were the main causes of inorganic fouling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Shams Forruque Ahmed, Fatema Mehejabin, Adiba Momtahin, Nuzaba Tasannum, Nishat Tasnim Faria, M. Mofijur, Anh Tuan Hoang, Dai-Viet N. Vo, T. M. Mahlia
Summary: Membrane technology is gaining popularity in wastewater treatment due to its cost-effectiveness and environmentally friendly characteristics. This review addresses the key techniques for improving membrane performance and highlights the challenges and solutions associated with the membrane process. Hybrid techniques are also explored for enhancing membrane performance. The control strategies for membrane fouling still require optimization, and more research is needed for long-term direct membrane filtering operation.
Article
Engineering, Chemical
Yihe Sui, David Wollan, Jacqui McRae, Richard Muhlack, Jonathan Tuke, Kerry Wilkinson
Summary: This study demonstrates the effectiveness of ultrafiltration (UF) in removing astringent compounds from wines, resulting in clarified and stabilized permeate with reduced negative impacts from excess phenolics and proteins.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Dagmar Olafsdottir, Bing Wu
Summary: The study found that humic acid can accelerate alginate fouling under both dead-end and crossflow conditions with different filtration mechanisms. Intermittent relaxation during crossflow can alleviate medium viscosity alginate fouling. High temperature clean water flushing is the most effective way to maintain membrane performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Lukka Thuyavan Yogarathinam, Kirubakaran Velswamy, Arthanareeswaran Gangasalam, Ahmad Fauzi Ismail, Pei Sean Goh, Anantharaman Narayanan, Mohd Sohaimi Abdullah
Summary: The study compared the influence of different process variables on whey protein recovery from synthetic and industrial cheese whey, revealing that pH has the biggest impact on membrane flux and protein rejection performances. The cross-flow filtration system exhibited good whey rejection value and flux. The dynamic behavior of whey effluent flux was effectively modeled using machine learning tool convolutional neural networks, showing potential for wider applications in sensor tuning.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Houkai Wu, Kuo Fang, Chuan Shi, Kaijun Wang
Summary: In order to preconcentrate domestic sewage and control membrane fouling, a novel anaerobic membrane-based preconcentration (AnMPC) system was proposed in this study. The effect of polyaluminium chloride (PACl) dosage on membrane fouling control and methane potential of preconcentrated domestic sewage was also investigated. The addition of PACl resulted in a decrease in membrane fouling resistance and an increase in preconcentration ratio, but also led to a decrease in methane potential.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Joshua Peles, Benjamin Cacace, Christina Carbrello, Sal Giglia, Andrew L. Zydney
Summary: This study investigated the effect of low operating pressure on protein fouling during virus removal filtration. The results showed that increasing pressure led to a decline in flux, and the fouling mechanisms involved intermediate pore blockage and cake formation. Protein diffusion on the membrane surface also played a significant role in fouling.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Environmental Sciences
Utjok W. R. Siagian, Khoiruddin Khoiruddin, Anita K. Wardani, Putu T. P. Aryanti, I. Nyoman Widiasa, Guanglei Qiu, Yen Peng Ting, I. Gede Wenten
Summary: High-performance UF membranes have shown remarkable performance in wastewater treatment, achieved through various methods. Recent UF membranes with high fouling resistance and selectivity have the potential to simplify the treatment process by removing a wide range of pollutants effectively.
CURRENT POLLUTION REPORTS
(2021)
Article
Engineering, Chemical
Junwei Zhang, Shiyang Huang, Hao Guo, Anthony G. Fane, Chuyang Y. Tang
Summary: The configurations of crossflow filtration cells play an important role in determining membrane separation performance. This study investigated the effects of cell designs, including sealing approaches and back support configurations, on water flux, salts rejection, and fouling behavior. It was found that the definition of effective filtration area in the O-ring sealed cell could lead to an overestimation or underestimation of membrane water flux compared to the benchmark data. Additionally, using a highly porous back support resulted in higher water flux, salts rejection, and better antifouling performance compared to a perforated plate support.
Article
Engineering, Chemical
Elia Arnese-Feffin, Pierantonio Facco, Daniele Turati, Fabrizio Bezzo, Massimiliano Barolo
Summary: In this study, a hybrid modeling strategy is proposed to characterize reversible and irreversible fouling in multi-module biorefinery membrane separation systems. The combination of a data-driven model and a knowledge-driven model allows monitoring of membrane fouling and valuable insight to be obtained through simple visual inspection.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Polymer Science
Alexandra S. M. Wittmar, Marcus Ropertz, Michael Braun, Ulrich Hagemann, Corina Andronescu, Mathias Ulbricht
Summary: Carbon-based electrocatalysts for oxygen reduction reaction (ORR) are prepared using a two-step thermal treatment process. The nitrogen content in the catalyst can be increased by blending cellulose with chitosan. The optimized thermal treatment and pyrolysis conditions result in a catalyst with high ORR activity.
Article
Engineering, Chemical
Qirong Ke, Mathias Ulbricht
Summary: This study focuses on the in situ modification of commercial polyethersulfone (PES) microfiltration membranes to efficiently remove boron in seawater desalination. By coating the pore surface with a boron affinity polymer-based hydrogel, the modified membranes showed superior adsorber properties. The trade-off between permeance and boron binding capacity was studied to identify promising materials for competitive overall separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Yan Wang, Baiwen Ma, Mathias Ulbricht, Yingchao Dong, Xu Zhao
Summary: This review provides a comprehensive overview of alumina membranes, including recent developments, strategies for lowering cost and improving performance, and future research prospects. The review also highlights emerging methods and engineering applications.
Article
Polymer Science
Haniyeh Najafvand Drikvand, Mitra Golgoli, Masoumeh Zargar, Mathias Ulbricht, Siamak Nejati, Yaghoub Mansourpanah
Summary: Poly(N-isopropylacrylamide) (PNIPAAm) was introduced into a polyethylene terephthalate (PET) nonwoven fabric to develop a novel support for polyamide (PA) thin-film composite (TFC) membranes without a microporous support layer. By adjusting the pore size of the nonwoven fabric using PNIPAAm hydrogel, a hydrophilic support was created. PA TFC membranes were fabricated on the PET-based support through interfacial polymerization. The resulting membrane exhibited good separation performance and temperature-responsive behavior.
Article
Chemistry, Multidisciplinary
Md. Akhtarul Islam, Mathias Ulbricht
Summary: This study applies the Hagen-Poiseuille equation to experimental flow data of various gases through capillaries and porous media. By treating gas viscosity as an adjustable parameter, the study finds an unambiguous relationship between gas viscosity, average pressure, and capillary diameter at a constant temperature. Additionally, a universal linear relation exists for different gases between the parameter Pav*D and μ/M-0.5 (where M is molecular mass) when Pav*D < 0.01. This new interpretation of gas viscosity avoids the differentiation of flow regimes and has potential applications in fields such as microfluidic systems and pore size analysis of filters and membranes.
Article
Biochemistry & Molecular Biology
Philipp Jahn, Michael Zelner, Viatcheslav Freger, Mathias Ulbricht
Summary: The standard treatment for wastewater is unable to remove salinity or certain organic micropollutants. Membrane processes, especially nanofiltration (NF), may be a promising solution. However, current NF membranes reject multivalent ions due to the dielectric effect. This study presents a new method that combines two polyelectrolytes with opposite charge to prepare NF membranes with adjustable selectivity and improved performance compared to existing membranes.
Article
Engineering, Environmental
Lukas Fischer, Anna Volz, Ulrich Hagemann, Mathias Ulbricht
Summary: A polymer-based membrane platform was used to immobilize nickel nanoparticles and enhance the catalytic activity for the reduction of p-nitrophenol. The optimized membrane fabrication method resulted in high loading of nickel nanoparticles, carbon nanoparticles, and cationic ionomer, as well as high porosity. The addition of carbon and ionomer improved the nickel microenvironment in the membranes and doubled the catalytic frequency of p-nitrophenol reduction. The multi-composite membranes exhibited exceptional stability and enabled continuous wastewater treatment at high p-nitrophenol concentrations.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Baiwen Ma, Mathias Ulbricht, Chengzhi Hu, Hongwei Fan, Xu Wang, Yi-Rong Pan, Seyed Saeid Hosseini, Stefan Panglisch, Bart Van der Bruggen, Zhiwei Wang
Summary: Membrane science and technology is rapidly growing worldwide, offering high separation efficiency with low energy consumption. While most research focuses on membrane fabrication and modification to enhance properties and performance, less attention has been given to membrane life cycle management, particularly at the end of service. This study highlights the importance of life cycle assessment (LCA) and specifically discusses membrane recycling to achieve green development and sustainability goals.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Polymer Science
Amir Hossein Mostafavi, Ajay Kumar Mishra, Fausto Gallucci, Jong Hak Kim, Mathias Ulbricht, Anna Maria Coclite, Seyed Saeid Hosseini
Summary: This review introduces various promising chemical and physical surface modification techniques for tailoring the characteristics of thin films and membranes. It focuses on the application of chemical vapor deposition (CVD) techniques and discusses the impact of process parameters on the quality and properties of deposition. The review highlights the significance of CVD-based membranes and thin films for industrial applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Lukas Fischer, Sven Soren Hartmann, Artjom Maljusch, Christian Daeschlein, Oleg Prymak, Mathias Ulbricht
Summary: We fabricated dense anion-exchange membranes and rationally controlled the nanostructure by designing fabrication conditions and adding ionic liquid. We optimized the macroscopic properties and ion transport rates by tailoring the solidified membranes through heat or solvent annealing.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Duc Hoa Tran, Mathias Ulbricht
Summary: Research and development towards sustainable chemistry involves the development of new materials and exploration of new fabrication methods. In this study, composite membranes made from biodegradable cellulose were fabricated using a simple and scalable process. The use of dimethylsulfoxide as impregnation liquid improved the membrane separation performance and lamination strength. The thickness of the barrier layer could be reduced to a few micrometers, and the membrane performance could be adjusted by varying the cellulose concentration and co-solvent fraction. The cellulose-cellulose composite membranes showed potential as a sustainable alternative material for various separations.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Zhijun Ren, Siyang Wang, Qiuwen Wang, Longyi Lv, Dongyu Xu, Yilin Dong, Jinlong Han, Mathias Ulbricht, Li Sun, Xiaoyang Liu
Summary: Moderate KMnO4/Fe(II) pre-oxidation is a promising technique to alleviate membrane fouling and minimize environmental risks caused by the breakage of algae cells. This study investigates the performances of various components and their influences on fouling characteristics.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Siqi Wu, Baiwen Ma, Chengzhi Hu, Xin Hua, Hongwei Fan, Mathias Ulbricht, Jiuhui Qu
Summary: Coagulation pretreatment can improve the efficiency of membrane filtration. By regulating the 3D structure of the cake layer and the water channel characteristics, the optimization of membrane filtration can be achieved.
Article
Nanoscience & Nanotechnology
Lukas Fischer, S. Amir H. Hesaraki, Anna Volz, Mathias Ulbricht
Summary: Porous nanocomposite membranes decorated with high loadings of nickel nanoparticles were successfully fabricated using chelating additives. These additives reduced nickel agglomeration and promoted particle presentation on the membrane surface, resulting in increased water permeance and porosity compared to membranes without additives. Incorporating the hydrophobic additive Fumion allowed for tuning of membrane hydrophobicity. The same nickel nanoparticles showed improved H-2 generation rate and higher p-NP turnover frequencies when presented in membranes with higher water contact angles and additive-directed particle presentation.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Alexandra S. M. Wittmar, Thaarmikaa Vigneswaran, Nikola Rankovic, Ulrich Hagemann, Nils Hartmann, Ricardo Martinez-Hincapie, Viktor Colic, Mathias Ulbricht
Summary: Nitrogen-containing porous carbons with suitable structures and nitrogen content were prepared by pyrolysis of chitosan-coffee blends under nitrogen atmosphere and using KOH for surface activation. The fraction of chitosan in the precursor influenced the porous structure and electrochemical activity of the carbon materials. Nitrogen species derived from chitosan play an important role, with catalysts having higher pyridinic nitrogen content showing the highest faradaic efficiency. The synthesized materials showed comparable performance to commercially available carbons obtained from less renewable precursors.
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)
