Article
Engineering, Chemical
Xinyu Zhang, Zhenglun Lin, Daoji Wu, Ming Xie, Jingtao Xu, Xian Bao, Xiaoxiang Cheng, Ying Wang, Feiyong Chen
Summary: This research demonstrates the fabrication of a robust antifouling RO membrane using the codeposition of Noria with zwitterionic copolymers. The modified membrane shows improved hydrophilicity, reduced roughness, and lower negative charge, leading to an excellent antifouling property during both simulated and actual water treatment processes.
Article
Chemistry, Physical
Yamin Li, Shengwei Sun
Summary: In this study, a commercial polyamide reverse osmosis membrane was modified by surface gelation using sodium alginate as a coating agent. The modified membrane exhibited improved hydrophilicity, smoothness, negative charge, and slightly improved selectivity and permeability. Additionally, the modified membrane showed good durability and antifouling performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Qianqian Zhao, Shiyu Yu, Yan Zhang, Shaolu Li, Genghao Gong, Yunxia Hu
Summary: Surface modification using organoalkoxysilane grafting on polyamide reverse osmosis membrane improves permeability and antifouling performance. The use of gamma-Aminopropyl triethoxysilane (APTES) and n-decane solvent activation enhances microporosity and maximizes grafting efficiency. The resulting APTES-PA membranes show high water permeability, excellent stability, and improved antifouling properties against both negatively and positively charged foulants.
Article
Engineering, Chemical
Yaxu Guan, Shao-Lu Li, Zhenxing Fu, Yiwen Qin, Juntao Wang, Genghao Gong, Yunxia Hu
Summary: In this study, a zwitterionic polymer PEI-CA was synthesized and grafted onto a polyamide RO membrane, resulting in improved hydrophilicity, decreased negative charge, and enhanced water permeance and NaCl rejection. The modification strategy of mixing reagents with arginine and PEI-CA further improved the antifouling performance against SDS. The novel polymer and modified RO membranes demonstrated excellent potential for water treatment.
Article
Engineering, Chemical
Shao-Lu Li, Juntao Wang, Yaxu Guan, Junping Miao, Runsha Zhai, Jindi Wu, Yunxia Hu
Summary: In this study, a series of antifouling RO membranes were fabricated using layer-by-layer interfacial polymerization method. These membranes demonstrated hydrophilicity, reduced surface charge, increased water permeability, high rejection rate, and antibacterial properties, providing a valuable pattern for designing antifouling PA TFC RO membranes.
Article
Engineering, Chemical
Muhammad Tawalbeh, Liyan Qalyoubi, Amani Al-Othman, Muhammad Qasim, Mohammad Shirazi
Summary: Reverse osmosis (RO) membranes are widely used for their excellent water permeation rates and high salt rejection, but fouling remains a major issue. Various techniques, including pretreatment and cleaning, have been developed to minimize and control fouling. The development of antifouling and self-cleaning RO membranes has received significant attention. This review discusses the types and mechanisms of fouling, highlights factors influencing fouling in RO, and provides an overview of novel techniques for imparting antifouling and self-cleaning properties to RO membranes.
Article
Engineering, Chemical
Qunhui Hu, Yongjie Yuan, Zhonghuan Wu, Hongwei Lu, Nanwen Li, Hailiang Zhang
Summary: This study developed surface modified TFC RO membranes and investigated the effect of different types of ionic groups on membrane fouling and scaling performances. The modified membranes showed improved hydrophilicity and changed zeta potential compared to the pristine membrane. The research provides insights for the development of anti-fouling and anti-scaling membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Huaigang Qi, Yu Peng, Xinghua Lv, Fangyi Xu, Baowei Su, Lihui Han
Summary: In this study, an interlayer of ultra-thin and hydrophilic two-dimensional Covalent organic frameworks (COFs) nanomaterial was constructed on a commercial polysulfone (PSf) substrate surface. This COFs interlayer successfully adjusted the interfacial polymerization (IP) process, helping to fabricate a thin-film nanocomposite (TFN) reverse osmosis (RO) membrane with excellent performance. Further modification with an ultra-low concentration Tp aqueous solution improved the water permeance and NaCl rejection of the TFN RO membrane.
Article
Engineering, Chemical
Soraya Laghmari, Patrick May, Mathias Ulbricht
Summary: A methodology for preparing a polyzwitterionic anti-fouling hydrogel coating for reverse osmosis polyamide membranes has been developed using in situ thiol-ene reaction. By adjusting solution composition parameters and reactant concentrations, hydrogel layers of different thicknesses can be formed on the membrane surface, displaying improved antifouling properties.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Tengteng Xie, Hao Wang, Kuo Chen, Feiyang Li, Shengchao Zhao, Haixiang Sun, Xiujie Yang, Yingfei Hou, Peng Li, Jason Niu, Q. Jason Niu
Summary: In this study, a new approach called spin-coating assisted multilayer interfacial polymerization (SMIP) is proposed for fabricating high-performance reverse osmosis (RO) membranes. The SMIP technology combines the efficient and uniform spin-coating process, the precise control of multilayer interfacial polymerization, and the simplicity of the polymerization process. By using polyethyleneimine (PEI) and 1, 3, 5-benzoyl chloride (TMC), a thin, intrinsically hydrophilic, smooth and almost electro-neutral polyamide (PA) nanofilm is obtained. The optimal RO membrane with controlled thickness exhibits excellent fouling resistance and desirable performance in terms of water permeance and NaCl rejection.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Qunhui Hu, Fengping Zhou, Hongwei Lu, Nanwen Li, Bo Peng, Hui Yu, Yongjie Yuan, Hailiang Zhang
Summary: Antifouling properties of polyamide composite reverse osmosis membranes are crucial for industrial applications. In this study, a new antifouling material, DACMC, was grafted onto a PA RO membrane to improve its hydrophilicity and NaCl retention. The presence of DACMC enhanced the membrane's antifouling performance against anionic and nonionic surfactants, while the pristine membrane showed better performance against cationic surfactants due to stronger electrostatic adsorption at low DACMC concentrations. A high DACMC concentration resulted in the best antifouling performance for all surfactants, highlighting the importance of rational design of charge and hydrophilic properties for RO membranes treating surfactant-containing wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Qibo Jia, Yan Li, Yan Liu, Dongping Duan
Summary: The study synthesized a forward osmosis (FO) membrane using silanol and graphene oxide nanosheets through a surface layer-by-layer self-assembly method, achieving high water flux and salt retention capacity by controlling the number and spacing of composite layers.
Article
Chemistry, Physical
Qi-an Gu, Lifen Liu, Yuling Wang, Chunyang Yu
Summary: Surface modification with small-molecule zwitterions is an effective solution to improve the antifouling performance of polyamide membranes, as it can increase the membrane surface density and electrostatic potential distribution, enhance interactions with water molecules, and exhibit better fouling resistance.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Xiao Xie, Qian Yang, Qiong Sun, Na Song, Liyan Yu, Lifeng Dong
Summary: Researchers have designed and developed a novel RO membrane with high permeability and self-healing chlorine resistance capability by doping alkaline-responsive polymer nanocontainers into the polyamide layer. The membrane releases repair materials during alkaline cleaning, allowing precise repair and restoration of membrane performance. Additionally, the nanocontainer doping enhances surface roughness and antibacterial properties of the membrane.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Chemical
Safoura Bakhodaye Dehghanpour, Fahimeh Parvizian, Vahid Vatanpour
Summary: The study focuses on improving the desalination performance of polyamide membranes by introducing hydrophilic nanoparticles. Surface analysis and performance testing show that the modified membranes have smoother surfaces, better fouling resistance, increased water flux, and improved rejection of NaCl.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Engineering, Environmental
Cao-Ying Yang, Guo-Dong Zhu, Zhuan Yi, Yong Zhou, Cong-Jie Gao
Summary: This paper reviews the additive assisted SNIPS process in fabricating functionalized, high-performance asymmetric isoporous membranes, focusing on the importance of additives in overcoming challenges faced by this strategy. Future directions for advancement in this field are also discussed, highlighting the significance of additives in enabling easier and more reproducible fabrication of advanced isoporous membranes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Shuhao Wang, Shaosuo Bing, Yunhao Li, Yong Zhou, Lin Zhang, Congjie Gao
Summary: This study deconstructs the kinetic pathways of interfacial polymerization (IP) to probe the structure of polyamide (PA) nanofilm, demonstrating that the structure can be controlled by adjusting the monomers’ stoichiometric ratio at the new reaction interface. The resulting nodules with controlled size and surface characteristics offer tunable water-salt transport properties. These insights potentially guide the production of high-performance polyamide-based thin-film composite membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Kaifeng Gu, Kaizhen Wang, Yong Zhou, Congjie Gao
Summary: The study showed that the polyethyleneimine/trimesic acid composite NF membrane has high permeability and good responsiveness to NaCl solution, with the potential for deep water treatment. The ion promoting-penetration effect level is high, leading to a significant increase in flux.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Junjie Yu, Kaifeng Gu, Binbin Yang, Kaizhen Wang, Yong Zhou, Congjie Gao
Summary: This work introduces a nano-composite reverse osmosis (RO) membrane with improved permeability and selectivity, utilizing phenyltrichlorosilane precursor for enhanced chemical stability and resistance. Through in-situ hydrolysis, phenyltrichlorosilane is effectively incorporated into the polyamide film, forming covalent and hydrogen bonds to enhance membrane performance. With increased loading of benzene trichlorosilane, the membrane achieves 300% pure water flux while maintaining a desalination rate of 98.1-98.9%, making it suitable for household water purification.
Article
Engineering, Chemical
Bing-Xin Gu, Zhuang-zhuang Liu, Kai Zhang, Yan-Li Ji, Yong Zhou, Cong-Jie Gao
Summary: This study fabricated novel polymeric OSN membranes with asymmetric structure inspired by the Desert beetle, showing high permeance, rejection rate, and stability. It provides a new approach for developing high-performance OSN membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yan-Li Ji, Bing-Xin Gu, Shi-Jie Xie, Ming-Jie Yin, Wei-Jie Qian, Qiang Zhao, Wei-Song Hung, Kueir-Rarn Lee, Yong Zhou, Quan-Fu An, Cong-Jie Gao
Summary: Nanofluidics derived from low-dimensional nanosheets and protein nanochannels have shown great potential for advanced applications in catalysis, sensing, and separation. This study successfully synthesized modular nanofluidics by confined growth of ultra-thin MOFs in a polymer membrane, improving water permeability and solute selectivity. Experimental and molecular dynamics simulations confirmed that the rigid and continuous nanochannels in MOF@ZNPM shifted water transport from high-friction-resistance conventional viscous flow to ultrafast nanofluidic flow, achieving record-high performance among polymer nanofiltration membranes.
ADVANCED MATERIALS
(2021)
Article
Engineering, Environmental
Yan-Li Ji, Hong-Hao Lu, Bing-Xin Gu, Run-Feng Ye, Yong Zhou, Quan-Fu An, Cong-Jie Gao
Summary: A new strategy of fabricating robust and high-efficient polyamide RO membranes via the self-assembled aromatic nanoparticles (SANs) controlled interfacial polymerization (SANCIP) method is proposed. The membrane exhibits ultra-high water flux and satisfactory OMPs rejection, as well as good stability and anti-fouling performance in long-term RO running process. This cost-effective strategy provides a useful guideline in designing high-performance polyamide membranes for advanced water treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Biqin Wu, Na Zhang, Mengling Zhang, Shuhao Wang, Xiaoxiao Song, Yong Zhou, Saren Qi, Congjie Gao
Summary: In this study, the use of ODA@GO facilitated the confined growth of polyamide nanofilm during interfacial polymerization, allowing for control over morphology and crosslinking degree. The resulting TFN membrane exhibited higher flux and salt rejection at seawater desalination conditions, while also improving boron rejection compared to TFC membrane.
Article
Biochemistry & Molecular Biology
Kaifeng Gu, Sichen Pang, Yong Zhou, Congjie Gao
Summary: Sodium chloroacetate (ClCH2COONa) was used as a modifier to graft onto the membrane surface, improving the antipollution performance of the PEI/TMA membrane. The best conditions were found to be 0.5% ClCH2COONa with a modification time of 10 hours.
Article
Engineering, Chemical
Zhe Shu, Wen-jing Wang, Yuan-yuan Zuo, Zhuan Yi, Yong Zhou, Cong-jie Gao
Summary: In this study, a novel block copolymer membrane was synthesized by incorporating phenylboronic acid groups, and the binding between glucose and boronic acid was found to regulate the separation performance and mechanical strength of the membrane.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Shuhao Wang, Shaosuo Bing, Haoyong Zhang, Yong Zhou, Lin Zhang, Congjie Gao
Summary: In this study, a facile surface engineering design strategy was developed to enhance the boron removal and desalination performance of SWRO membranes. The designed membrane exhibited high boron removal rate, high NaCl rejection rate, and acceptable water flux.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Xin Lu, Yingdong Chen, Wentao Yan, Kaizhen Wang, Yong Zhou, CongJie Gao
Summary: In this study, a novel amphiphobic PTFE membrane for air purification was developed. The membrane with a ring-on-string-like micro/nano structure exhibited high liquid repellency and anti-fouling ability. The experimental results demonstrated that the membrane had high particle removal efficiency and maintained low pressure drop during oil filtration.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Environmental Sciences
Yingdong Chen, Rongze Sun, Wentao Yan, Mengyao Wu, Yong Zhou, CongJie Gao
Summary: In this study, an antibacterial PVA nanofiltration membrane incorporated with Cu(OH)(2) nanowires for the treatment of dye/salt wastewater was developed. The membrane exhibited improved separation performance for dye/salt solutions, with high rejection rate for dyes and low rejection rate for salts. The introduction of Cu(OH)(2) nanowires also enhanced the membrane's antibacterial property, achieving a high sterilization rate for Escherichia coli and Staphylococcus aureus.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biochemistry & Molecular Biology
Mengling Zhang, Xiangyang Hu, Lei Peng, Shilin Zhou, Yong Zhou, Shijie Xie, Xiaoxiao Song, Congjie Gao
Summary: The topmost polyamide nanofilm in a TFC-RO membrane creates the realistic resistance zone for water and salt molecules. The intrinsic thickness of the membrane plays a crucial role in determining water permeability. Adjusting the concentration of reacting monomers can control the intrinsic thickness and affect water permeability constant. The presence of defects on the film surface can hinder water permeation.
Article
Biochemistry & Molecular Biology
Shilin Zhou, Yuzhe Zhou, Jin He, Yuwen Lai, Yanchun Li, Wentao Yan, Yong Zhou, Congjie Gao
Summary: By adding sodium bicarbonate to the aqueous phase, the micro-nano structure of the polyamide rejection layer can be adjusted, leading to a reduction in reverse solute flux and an improvement in salt rejection of the forward osmosis (FO) membrane.
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)
