Article
Engineering, Chemical
Qingbo Huang, Song Liu, Yanan Guo, Gongping Liu, Wanqin Jin
Summary: In this study, a graphene oxide (GO) membrane with charged interlayer channels was developed for the separation of mono-/di-valent ions. The membrane achieved selective transport of monovalent ions by utilizing size-sieving and electrostatic repulsion. The introduction of polyethyleneimine (PEI) into the interlayer channels not only controlled the charge property but also increased the hydrophilicity of the membrane surface. The optimal GO-PEI membrane exhibited high permeation rates and selectivity for monovalent ions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Haonan Yang, Guining Chen, Long Cheng, Yun Liu, Yaxiong Cheng, Huijun Yao, Yu Liu, Gongping Liu, Wanqin Jin
Summary: Graphene oxide (GO) has been recognized as an ideal building block for separation membranes due to its unique laminar structures and tunable physicochemical properties. In this study, swift heavy ion irradiation was used to enhance the gas permeation properties of GO membranes by creating through transport channels. The irradiation process induced disorder regions and nanopores in the laminates, and promoted cross-linking between oxygen-containing groups of GO, resulting in reduced interlayer spacing and enhanced molecular sieving capabilities. The irradiated GO membranes exhibited a significant improvement in hydrogen permeance, surpassing the upper-bound of H2/CO2 performance. This work demonstrates the feasibility of using heavy ion irradiation to create and tune interlayer channels.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Honggui Wang, Lang Hu, Huihui Zhou, Ya Zhang
Summary: Various reduced graphene oxide supported CuS composites were prepared via a hydrothermal method, with the optimized 0.1RGO-CuS exhibiting excellent photoelectrocatalytic hydrogen evolution performance in acidic media under near-infrared light. The introduction of RGO effectively enhanced charge transfer resistance, leading to improved charge transport rate and electron-hole separation ability in the photoelectrochemical process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Musen Chen, Maxim Trubyanov, Pengxiang Zhang, Qian Wang, Zelong Li, Kostya S. Novoselov, Daria Andreeva
Summary: Graphene oxide (GO) based multi-layered membranes have exceptional molecular-sieving properties for gas separation, especially for hydrogen decarbonization. However, the mechanism of gas permeation through two-dimensional GO membranes is very different from traditional polymeric membranes due to their multilayer, laminated nature. Understanding and measuring gas transport parameters, such as diffusivity and solubility, are crucial for the strategic design of novel membranes based on two-dimensional materials.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Massimiliano Bartolomei, Marta Hernandez, Jose Campos-Martinez, Ramon Hernandez-Lamoneda, Giacomo Giorgi
Summary: The impermeability of defect-free graphene to all gases has been challenged by recent experimental evidence of hydrogen transmission through a two-dimensional carbon layer. A flipping mechanism involving chemisorbed hydrogen atoms in C-C bonds becomes competitive under specific conditions, leading to a significant exothermic process. The effect of electron doping is found to reduce activation enthalpy and slightly enhance exothermicity for hydrogenated graphene.
Article
Multidisciplinary Sciences
Junhyeok Kang, Yeongnam Ko, Jeong Pil Kim, Ju Yeon Kim, Jiwon Kim, Ohchan Kwon, Ki Chul Kim, Dae Woo Kim
Summary: Layered two-dimensional materials with interlayer structures can be used for organic solvent nanofiltration (OSN) membranes due to their precise molecular sieving ability and stability in harsh conditions. In this study, nanoporous graphene (NG) with a high density of sp(2) carbon domains was synthesized by microwave treatment and showed ultrafast organic solvent permeance and excellent stability. The membrane's molecular weight cut-off (MWCO) can be switched depending on the solvent type, allowing for the separation of multiple organic mixtures using a single membrane.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yihua Li, Jiao Jiao, Qidong Wu, Qi Song, Wancen Xie, Baicang Liu
Summary: Graphene oxide (GO) composite membranes have been widely used in membrane modification due to their excellent properties, such as huge specific surface area, good electrical conductivity, good hydrophilicity, and various functional groups. The addition of GO in membranes has been proven to improve water permeability, molecular selectivity, membrane fouling mitigation, and contaminants decomposition. Recently, the development of laminated GO in membranes has achieved both high selectivity and high water permeability, overcoming the limitations of conventional polymeric or inorganic membranes. This review systematically summarizes the applications of GO composite membranes in three highlighted areas of environmental fields: desalination, gas separation, and wastewater treatment, and discusses the challenges faced with GO composite membranes.
CHINESE CHEMICAL LETTERS
(2022)
Article
Environmental Sciences
Peng Zhang, Yiran Wang, Pengni Li, Xiaomin Luo, Jianyan Feng, Hui Kong, Ting Li, Wenqi Wang, Xubing Duan, Ying Liu, Meng Li
Summary: A GO/Gr nanofiltration membrane with high stability was successfully engineered by post-hot-pressure treatment and forward pressure filtration. The membrane exhibited satisfactory permeability and selectivity, and showed high rejection rates for various solutes, demonstrating the potential of developing GO-based nanofiltration membranes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Mokhtar Ali Amrani, Yara Haddad, Firas Obeidat, Atef M. Ghaleb, Sobhi Mejjaouli, Ibrahim Rahoma, Mansour S. A. Galil, Mutahar Shameeri, Ahmed A. Alsofi, Amin Saif
Summary: This study focuses on maximizing the production of H-2 energy using nanocatalysts from waste aluminum chips. It suggests that the use of waste aluminum chips is cost-free as the by-product can be sold at a higher price, making the production cost efficient. The study recommends the optimum reactor design and reaction parameters to minimize water vaporization and provides an economic feasibility approach to producing H-2 gas.
Article
Engineering, Chemical
Mutsuki Oikawa, Haruka Takeuchi, Daiki Chikyu, Tomonori Ohba, Zheng-Ming Wang, Setsuko Koura
Summary: This study systematically examines the separation behaviors of inorganic cations and dye molecules through GO membrane, and finds that the permeation rate and water flux increase linearly with the strength of cationic power. Furthermore, the study reveals the dominant ion-exchange mechanism and the important role of ionicity of solutes in the separation process. These findings provide valuable insights for membrane material design and water treatment applications.
Article
Engineering, Chemical
Wooyoung Choi, Seung Eun Choi, Jae Seung Seol, Jeong Pil Kim, Minsu Kim, Hyungjoon Ji, Ohchan Kwon, Hanim Kim, Ki Chul Kim, Dae Woo Kim
Summary: A layered composite membrane composed of nanoporous graphene and polyethylene oxide is developed, which demonstrates ultrafast H-2 permeability and moderate selectivity. The presence of nanopores and expansion of interlayer spacing significantly enhance the permeation of gas molecules.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lei Zhang, Zhuo Liu, Chenxing Yang, Victoria Garcia Sakai, Madhusudan Tyagi, Liang Hong
Summary: This study reveals the conductive behavior of a two-dimensional layered proton conductor and finds that the conduction mechanism changes with different water content. The presence of water molecules has a significant impact on the overall conductivity. The study validates the existence of different conduction mechanisms and provides an optimization strategy.
Article
Engineering, Environmental
Li-yue Sun, De-hao Yu, Zhao-ge Juan, Yao Wang, Yan-xin Wang, Matt J. Kipper, Lin-jun Huang, Jian-guo Tang
Summary: Graphene oxide (GO) membranes can be used for water treatment to remove organic molecules. However, the effect of pH on GO's properties leads to poor removal of positively charged model compounds. In this study, pH-responsive polymers were used to modify GO membranes, resulting in improved removal performance, water permeance, and long-term stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Januar Widakdo, Grandprix Thomryes Marth Kadja, Anawati Anawati, T. M. Subrahmanya, Hannah Faye Mercado Austria, Tsung-Han Huang, Edi Suharyadi, Wei-Song Hung
Summary: Technologies that absorb CO2 are crucial for achieving carbon-neutral and carbon-negative goals. Compared to traditional adsorption/absorption processes, membrane separation, specifically graphene oxide (GO) membrane, is more energy-efficient. By introducing the small molecule melamine into the GO layer, the GO-melamine membrane demonstrated improved CO2 transport, with a CO2 permeance of 68.02 Barrer and CO2/N-2 ideal selectivity double that of pure GO.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Kai Haraguchi, Sogo Iwakami, Tomonori Ohba
Summary: In this study, fullerene-pillared porous graphene was prepared and its water vapor adsorption properties were investigated both experimentally and through simulations. The results showed that fullerene-pillared porous graphene with a 25±8% fullerene filling ratio had the highest adsorption capacity and uniform nanopores.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Thermodynamics
Zixin Hong, Junxian Pei, Yipu Wang, Bin Cao, Mingran Mao, Huidong Liu, Haifeng Jiang, Qingsong An, Xiang Liu, Xuejiao Hu
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Chemistry, Physical
Junxian Pei, Xianyin Song, Wenbin Chu, Xiaowei Liu, Wangquan Deng, Ting Cheng, Xuejiao Hu, Peihua Yang, Kang Liu
MATERIALS TODAY ENERGY
(2020)
Article
Engineering, Marine
Jia-Ling Luo, Junxian Pei, Yan Yan, Wen-Quan Wang
Summary: In this study, a numerical computation method combining a high-order compact difference scheme and immersed boundary method is used to simulate the flow around a hyperbolic cylinder. The results reveal that the drag coefficient of the hyperbolic cylinder has a parabolic relationship with the cross-section aspect ratio and hyperboloid eccentricity, respectively. The findings provide strategies for drag reduction and theoretical guidance for the design of hyperbolic structures in flowing fluid.
Article
Chemistry, Physical
Junxian Pei, Yutian Liao, Qian Li, Kui Shi, Jia Fu, Xuejiao Hu, Zhi Huang, Longjian Xue, Xu Xiao, Kang Liu
Summary: The study demonstrates that coating a layer of graphene on structured hydrophobic surfaces can achieve stable Cassie-state wetting, preventing wetting failure caused by trapped water in structure gaps. Graphene maintains the transparency of wettability and keeps moisture away from the gaps. The results provide an effective strategy to prevent Cassie-wetting failure and promote its further application in more complex conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Computer Science, Interdisciplinary Applications
Wen-Quan Wang, Jinling Wang, Guanzhe Cui, Junxian Pei, Yan Yan
Summary: This paper presents a numerical study on the deposition of elliptic particles in a Newtonian fluid at low Reynolds numbers. The study explores the effects of inflow condition, Reynolds number, aspect ratio, initial angle, and density ratio on the dynamic characteristics of the particles. Results show that particle deposition velocity increases with decreasing Reynolds number and is influenced by various factors such as shear flow and frequency of inflow conditions.
COMPUTERS & FLUIDS
(2022)
Article
Engineering, Marine
Xiu Wang, Zhou -Ping Hu, Yan Yan, Junxian Pei, Wen-Quan Wang
Summary: In this study, the acoustic characteristics of the horizontal axis of a micro hydrokinetic turbine were numerically investigated. It was found that the noise mainly occurred at the leading edge and tip of the blade, caused by the appearance and separation of vortices. The noise signal was mainly caused by the blade passing frequency, with low frequency and broad band features. The downstream propagation led to a gradual decrease in sound pressure level. The noise radiation of the blade exhibited obvious dipole characteristics in the flow direction.
Article
Energy & Fuels
Mingran Mao, Chunzao Feng, Junxian Pei, Huidong Liu, Haifeng Jiang
Summary: Passive cooling for thermal comfort improvement has received extensive attention for its low energy consumption. We propose a hybrid evaporative and radiative cooling membrane, consisting of a hygroscopic hydrogel sandwiched by two layers of a porous polyethylene aerogel. The membrane achieves evaporative cooling through the hydrogel and radiative cooling through the high solar reflection of the aerogel and high infrared emissivity of the hydrogel. The membrane also allows direct heat transfer between the hydrogel and human body, instead of the ambient air, due to the high infrared transmittance and low thermal conductivity of the aerogel.
Article
Engineering, Chemical
Tianhui Wu, Jing Luo, Junxian Pei, Lingmiao Xu, Hongtao Liu, Jiguo Tang
Summary: This study investigates the impact of a hydrofluoroether droplet on a smooth surface and develops two models to predict the maximum spreading ratio of various liquids at different impact velocities. Experimental results show that the behavior of hydrofluoroether droplets on a smooth surface differs from that of water and ethanol droplets. The developed models, based on a large database, exhibit high prediction accuracy of over 97.5%.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Tianzhen Wang, Lu Huang, Junxian Pei, Xuejiao Hu, Haifeng Jiang
Summary: This research achieves high water flux and salt rejection rate by utilizing the Bernoulli effect through pressure drop in nanopores, providing a guideline for developing new pumping systems for ion or molecule separation.
DESALINATION AND WATER TREATMENT
(2022)
Article
Chemistry, Physical
Lu Huang, An He, Mengyu Miao, Junxian Pei, Tong Liu, Xiaojuan Lei, Kunpeng Shan, Shuting Lei, Yipu Wang, Pinxuan He, Quan Feng, Zhifeng Huang, Xuejiao Hu, Haifeng Jiang
Summary: A novel hybrid system combining membrane distillation with a microfluidic power generator has been developed to produce clean water and generate electricity simultaneously using low-grade thermal energy. By utilizing temperature difference between low-grade heat sources and the environment, water evaporation and power generation are driven, providing a new perspective for utilizing low-grade thermal energy.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Engineering, Chemical
Tianzhen Wang, Haifeng Jiang, Xingyu Shao, Junxian Pei, Huai Zheng, Xuejiao Hu
Summary: This study investigated the effects of CNTs and slit structure on the filtration efficiency of water and ions through simulation, finding that a slit of 0.7 nanometers between CNTs with a radius of 3 nanometers exhibited a maximum water flow rate of 1,200 L/(m2 h bar) and close to 100% salt rejection.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Physical
Junxian Pei, Bo Chen, Xiaowei Liu, Jun Huang, Xuejiao Hu, Kang Liu
Summary: This study introduces a novel approach to enhance the energy efficiency of electrokinetic devices by engineering the solid-liquid interface with single-layer graphene. Through molecular dynamics simulation and theoretical analysis, it is demonstrated that the graphene engineered interface allows for strong slip flow and high surface charge, leading to a significant increase in energy efficiency of streaming generators.
SUSTAINABLE ENERGY & FUELS
(2021)
Review
Chemistry, Physical
Junxian Pei, Jun Huang, Zhi Huang, Kang Liu
SUSTAINABLE ENERGY & FUELS
(2019)
Correction
Chemistry, Physical
Junxian Pei, Jun Huang, Zhi Huang, Kang Liu
SUSTAINABLE ENERGY & FUELS
(2019)
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)
