Article
Materials Science, Multidisciplinary
Samuel J. Lounder, Ayse Asatekin
Summary: There is an urgent need for new polymer chemistries to develop nanofiltration membranes with improved fouling and chlorine resistance. This study introduces charged zwitterionic amphiphilic copolymers (CZACs), which self-assemble to form membranes with anionic nanopores. These CZAC membranes exhibit enhanced salt rejection and exceptional fouling resistance, addressing key performance limitations of current nanofiltration membranes.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Engineering, Chemical
Amanda Grylewicz, Sylwia Mozia
Summary: Polymeric membranes are commonly used in water and wastewater treatment, but pressure-driven membranes are prone to fouling and biofouling. On the other hand, forward osmosis membranes are less affected by fouling but have limited potential in wastewater treatment due to low permeation. The use of various nano-materials has been proposed to enhance membrane performance in terms of permeability, antifouling/antibiofouling resistance, and separation properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Roland Schopf, Ulrich Kulozik
Summary: Microfiltration using hollow fiber membranes is not commonly applied in dairy technology, but in this study, it was found to be an effective alternative to other module systems such as ceramic tubular membranes and spiral-wound membranes. The efficiency of fractionation and pre-concentration of the casein fraction before starting diafiltration was optimized at certain process conditions, achieving 80% whey protein depletion after 2.5 diafiltration steps at a concentration factor of 3.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zhihao Jin, Yajing Shen, Xianfu Chen, Minghui Qiu, Yiqun Fan
Summary: The introduction of Ce effectively inhibited the phase transformation of TiO2 and prevented cracks, resulting in excellent performance and anti-fouling properties for the Ce-doped TiO2 membrane in protein separation.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Thomas C. France, Francesca Bot, Alan L. Kelly, Shane Crowley, James A. O'Mahony
Summary: Changes in physicochemical properties and distribution of constituents in skim milk during low temperature MF affect filtration performance and product composition. Processing temperature within the cold MF range significantly impacts energy consumption, protein distribution, and membrane fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Junjie Zhang, Xuemeng Tian, Xihui Cui, Aqun Zheng, Jianjun Li, Yanhong Bai, Yuansuo Zheng
Summary: The separation and purification of proteins is crucial for proteomics research. This study presents a facile method to synthesize magnetic nanomaterials with dendritic structure and unique electrostatic effect, enabling selective adsorption of proteins. The materials exhibit stable crystal shape, superparamagnetic properties, fast adsorption kinetics, high adsorption capacity, and reusability, showing great potential for special protein adsorption.
Article
Chemistry, Physical
Saumya Ranjan Pradhan, Buchaiah Gollapelli, Ramadevi Suguru Pathinti, Ramesh Kandimalla, Jayalakshmi Vallamkondu
Summary: Monodispersed micrometer-sized Cholesteric liquid crystal (CLC) droplets were prepared using a flow-focusing microfluidic device for the detection of protein bovine serum albumin (BSA). The PVA/SC12S stabilized micro-sized CLC droplets (CLCPVA/SC12S) exhibited flashing spots with red reflection, and the configurational change from red reflection flashing spots to a central spot of red reflection was effective in detecting BSA in an aqueous solution with a limit of detection of 0.15 μM. The electrostatic interaction caused by the adsorption of negatively charged BSA on the positively charged CLC droplets was found to change the arrangement of CLC molecules in droplets from flashing spot to central spot reflection.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Thanigaivelan Arumugham, Mariam Ouda, Rambabu Krishnamoorthy, Abdul Hai, Nirmala Gnanasundaram, Shadi W. Hasan, Fawzi Banat
Summary: Bimetallic oxide nanoparticles, particularly Fe2O3-Mn2O3, were synthesized and used as nanomodifiers for PES ultrafiltration membranes, significantly enhancing water contact angle, surface roughness, porosity, and pure water flux for the membrane containing 0.25 wt% nanoparticles. The modified PES membranes exhibited improved antifouling ability and higher flux recovery ratios in protein-based filtration tests.
ENVIRONMENTAL RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Mei-Ling Liu, Chun-Xu Zhang, Ming-Jian Tang, Shi-Peng Sun, Weihong Xing, Young Moo Lee
Summary: Nanochannel membranes are crucial for water recycling, molecular purification, and separation in various industries. The development of functional nanochannel membranes (FNMs) integrates selective separation and environmental self-adaptiveness through external stimuli. This review discusses the recent advancements, nanostructure design strategies, applications, challenges, and opportunities of FNMs.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Engineering, Environmental
Wenxiu Hu, Yichen Chen, Xinfei Dong, Qing-Wei Meng, Qingchun Ge
Summary: The PA-Fe-Bet membrane, designed for efficient chromium removal in low-concentration heavy metal wastewater, shows promise with its environmentally friendly synthesis approach, high CrO42- removal efficiency, and resistance to fouling.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Kanchan Sharma, Nawshad Akther, Youngwoo Choo, Pengfei Zhang, Hideto Matsuyama, Ho Kyong Shon, Gayathri Naidu
Summary: A positively charged nanofiltration membrane was fabricated to enhance the separation of Mg2+ ions over Na+ ions in seawater.
Article
Engineering, Environmental
Liuqing Yang, Ximeng Zhang, Jalal Rahmatinejad, Bahareh Raisi, Zhibin Ye
Summary: Zwitterionic loose nanofiltration (Z-NF) membranes with enhanced hydrophilicity and fouling-resistant ability were successfully fabricated by rapid co-deposition of dopamine and diamine-zwitterion (Z-DNMA) via covalent bonds. The identified optimum membrane (Z-NF3) exhibited high pure water permeability and high rejections to organic dyes, as well as superior fouling-resistant performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Chao Wang, Jiajia Zhang, Chao Liu, Xipeng Song, Chunhua Zhang
Summary: A negatively charged nanofilm was fabricated via interfacial polymerization for the separation of anionic dyes, showing efficient removal of dyes under various pH conditions and excellent anti-fouling performance. The nanofilm has high potential in purifying dye wastewater even under harsh conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Masataka Nakagawa, Yui Tomioka, Chiaki Sakuma, Ryo Sato, Takashi Shibata, Yasunori Kurosawa, Yoshinori Sato, Yasuo Ono, Tsutomu Arakawa, Teruo Akuta
Summary: In this study, silver staining of proteins and nucleic acids separated by agarose gel electrophoresis was examined using five commercial kits. The Silver Stain Plus from Bio-Rad was found to be the most suitable due to its minimal background staining and reasonable band staining. Additionally, silver staining showed the ability to stain nucleic acids and worked well on vertical agarose gels prepared with technological modifications. This optimized silver staining method could enable future analysis of biological samples with limited quantity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Green & Sustainable Science & Technology
Esperanza M. Garcia-Castello, Antonio D. Rodriguez-Lopez, Sergio Barredo-Damas, Alicia Iborra-Clar, Jairo Pascual-Garrido, Maria Isabel Iborra-Clar
Summary: Consumers are increasingly aware of the importance of incorporating functional and nutritional foods into their diet, leading to a higher demand for protein and peptide-rich food extracts. Soy protein and its derivatives are particularly emphasized in this trend. Ultrafiltration membranes are used for protein fractionation and concentration, but membrane fouling remains a key limitation caused by the accumulation of macromolecules near the membrane surface.
Article
Engineering, Chemical
T. Sampedro, C. Tristan, L. Gomez-Coma, J. Rioyo, M. Sainz, I Ortiz, R. Ibanez
Summary: Developing efficient upgrading alternatives of treated waters by recovering energy within the treatment process is a promising way to alleviate pressure on natural water basins, achieve freshwater savings, and decarbonize the water industry.
Article
Chemistry, Medicinal
Cristina Gonzalez-Fernandez, Christoph Ohlknecht, Matthias Diem, Yerko Escalona, Eugenio Bringas, Gabriel Moncalian, Chris Oostenbrink, Inmaculada Ortiz
Summary: The development of new strategies to combat Gram-negative bacterial infections, particularly those resistant to antibiotics, is crucial due to the global increase in antibiotic resistance. This study focuses on the use of extracorporeal blood cleansing devices with affinity sorbents for capturing bacterial lipopolysaccharide (LPS), which stimulates an exacerbated immune response during infection. Molecular dynamics simulations were conducted to investigate the interaction mechanism between an anti-LPS factor (ALF) isoform 3 from Penaeus monodon (AL3) and lipid A (LA, a component of LPS). The results revealed the binding mechanism and key interacting residues, which can guide the design of LPS-sequestrating molecules for blood detoxification.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Review
Engineering, Chemical
Carlota Guati, Lucia Gomez-Coma, Marcos Fallanza, Inmaculada Ortiz
Summary: In response to the demand for cost-effective monitoring, glucose sensing devices have made significant progress in recent years. Enzyme-based devices face challenges such as poor stability and time-consuming purification procedures, leading to the development of enzyme-free sensors using different components. Several reviews have been published addressing sensor materials and synthesis methods, but the information has not yet translated into commercial devices. This review critically analyzes existing information on non-enzymatic glucose electrodes from an engineering perspective, linking sensitivity, stability, and response under physiological conditions to electrode characteristics.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Deva Pelayo, Maria J. Rivero, GermAn Santos, Pedro Gomez, Inmaculada Ortiz
Summary: Disinfection is commonly used in wastewater treatment plants to reduce the presence of pathogens. However, the emergence of micropollutants has become a serious concern, and it is worth investigating tertiary treatments that can remove both pathogens and micropollutants. UV-C photo-degradation processes are widely used for disinfection due to their simplicity and easy operation, and they have shown potential for the removal of contaminants. This study compared the performance of several photo-degradation technologies for the removal of two targeted micropollutants, and found that UV-C photolysis and UV-C photocatalysis were the most suitable technologies for degradation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Lucia Gomez-Coma, Diogo L. Silva, Alfredo Ortiz, Carmen M. Rangel, Victor Manuel Ortiz-Martinez, Alexandra M. F. R. Pinto, Inmaculada Ortiz
Summary: Finding stable solutions for hydrogen storage is crucial for its widespread usage as an energy source and to reduce carbon emissions. This study examines the effects of non-toxic and environmentally friendly additives on the hydrolysis process for releasing hydrogen. Sodium carboxymethyl cellulose and polyacrylamide show promising results as additives for efficient hydrogen production.
APPLIED SCIENCES-BASEL
(2023)
Article
Biochemistry & Molecular Biology
Carmen Barquin, Aranza Vital-Grappin, Izumi Kumakiri, Nazely Diban, Maria J. Rivero, Ane Urtiaga, Inmaculada Ortiz
Summary: This study demonstrates the photocatalytic degradation of organic pollutants in water using TiO2 and TiO2/Ag membranes immobilized on ceramic porous tubular supports. The membranes showed high water fluxes and low rejection rates against model pollutants. The photocatalytic performance for the degradation of DCA was similar to suspended TiO2 particles, but significantly improved when the aqueous solution permeated through the pores of the photocatalytic membrane.
Article
Biochemistry & Molecular Biology
Joost Veerman, Lucia Gomez-Coma, Alfredo Ortiz, Inmaculada Ortiz
Summary: Salinity gradient energy, especially using reverse electrodialysis (RED) technology, has attracted attention as a renewable energy source. However, the influence of divalent ions on the technology's performance has not been extensively studied. This study focuses on estimating the resistance of RED membranes in water flows containing divalent ions, both theoretically and experimentally. Results show that calcium and magnesium ions have a greater impact on energy generation compared to sulfate.
Article
Biochemistry & Molecular Biology
Tamara Sampedro, Carolina Tristan, Lucia Gomez-Coma, Marcos Fallanza, Inmaculada Ortiz, Raquel Ibanez
Summary: This study assesses the scale-up of reverse electrodialysis (RED) for the harvesting of renewable salinity gradient energy (SGE) in two selected coastal wastewater treatment plants in Europe. The research utilizes an optimization model to quantify the net present value (NPV), and finds that the industrial scale-up of SGE-RED is feasible in Ierapetra, Greece, due to higher flow rates and temperature. However, in Comillas, Spain, it could be cost-competitive with conventional alternatives under certain conditions.
Article
Pharmacology & Pharmacy
Belen Garcia-Merino, Eugenio Bringas, Inmaculada Ortiz
Summary: In recent decades, there has been increasing interest in using functionalized mesoporous nanomaterials as stimuli-responsive drug carriers. However, there is currently no standardized methodology to evaluate their performance. This study proposes a novel microfluidic platform as a new, simple, and cost-effective alternative for testing the behavior of nanocarriers. The platform was used to assess the performance of amino-functionalized MCM41 nanoparticles, which demonstrated a pH-responsive mechanism.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Agriculture, Dairy & Animal Science
Clara Casado-Coterillo, Pedro Diaz-Guridi, Jose Antonio Otero, Raquel Ibanez
Summary: The integration of membrane technology in the dairy industry can improve sustainability by avoiding the use of chemicals and waste generation. In this study, a commercial membrane with high lactose rejection and moderate lactic acid rejection was used for lactic acid and lactose separation. The performance of the membrane was validated and showed potential for the treatment of dairy effluents.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Javier Fernandez-Gonzalez, Marta Rumayor, Antonio Dominguez-Ramos, Angel Irabien, Inmaculada Ortiz
Summary: The development of emerging decarbonization technologies requires advanced tools such as Life Cycle Assessment (LCA) for decision-making and promoting sustainability. Most environmental studies in this field have focused on carbon footprint and have not explored global sustainability implications. The recently proposed Planetary Boundaries (PBs) methodology can be used to determine the distance to the ideal reference state. This study highlights the role of LCA in developing emerging technologies and showcases its potential through a case study.
Article
Engineering, Environmental
Sophie Schroder, Inmaculada Ortiz, Ma-Fresnedo San-Roman
Summary: The COVID-19 pandemic has led to increased consumption of pharmaceuticals, resulting in higher levels of these drugs in wastewater and the environment. Electrochemical oxidation (ELOX) is an effective remediation technology commonly used to eliminate pharmaceuticals. This study focuses on the application of ELOX to remove drugs used in the fight against COVID-19 and assesses the degradation rate and the formation of toxic by-products. The presence of highly toxic by-products, such as PCDD/Fs, and their precursors was observed, highlighting the importance of selecting proper oxidation processes and variables to minimize toxicity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Rehabilitation
Lauren Rosen, Teresa Plummer, Andrina Sabet, Michelle L. L. Lange, Roslyn Livingstone
Summary: This paper updates the RESNA Position on the Application of Power Wheelchairs for Pediatric Users with current and additional scientific literature. It provides clinical applications and evidence supporting the use of power mobility for young children, assisting practitioners in decision-making and justification. RESNA states that age, limited vision or cognition, behavioral issues, and the ability to walk or propel a manual wheelchair should not be used as discriminatory factors against providing power mobility for children. RESNA recommends early utilization of power mobility for children with mobility limitations to promote integration, development, independence, and participation.
ASSISTIVE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Andrea Arguillarena, Maria Margallo, Axel Arruti-Fernandez, Javier Pinedo, Pedro Gomez, Inmaculada Ortiz, Ane Urtiaga
Summary: The selective zinc separation and purification of spent pickling acids by non-dispersive solvent extraction (NDSX) in hollow fiber membrane contactors (HFMCs) was successfully demonstrated on a pilot scale. The resulting iron chloride solution was valorized as a hydrogen sulfide suppressor in wastewater treatment. Additionally, the NDSX mathematical model was validated using pilot scale experimental data, providing a design tool for process scale-up and industrial implementation.
Article
Engineering, Environmental
Belen Garcia-Merino, Eugenio Bringas, Inmaculada Ortiz
Summary: This study proposes a microfluidic system for continuous, rapid and effective testing of selective capture agents of aqueous pollutants using magnetic nanoparticles. The results demonstrate the advantages of the proposed system in terms of continuous synthesis, selective capture, process scale-up, easy regeneration, and magnetic separation of nanoparticles from fluid media if needed.
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)