Article
Engineering, Environmental
Nayara de Melo Costa-Serge, Rosembergue Gabriel Lima Goncalves, Hernan Dario Rojas-Mantilla, Celso Valentim Santilli, Peter Hammer, Raquel Fernandes Pupo Nogueira
Summary: The catalytic activity of layered double hydroxides, with and without copper insertion, was evaluated for the degradation of sulfathiazole. The insertion of copper increased the specific area of the material and degradation kinetics, achieving complete removal of STZ. The presence of Cu(II) and Cu(I) surface sites contributed to the generation of radicals crucial for the degradation process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yang Guo, Yixin Zhang, Gang Yu, Yujue Wang
Summary: By comparing the conventional scavenger approach with the proposed probe approach, this study found that using probes can accurately reveal catalytic ozonation mechanisms and provide an effective way to assess the contribution of various ROS to pollutant abatement.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Yang Guo, Juhong Zhan, Gang Yu, Yujue Wang
Summary: During ozonation, the concentrations ratios of hydroxyl radicals, superoxide radicals and ozone remain constant, indicating the potential non-negligible role of superoxide radicals in the degradation of certain micropollutants with similar or higher reactivity compared to hydroxyl radicals. The proposed chemical kinetic model accurately simulates the abatement efficiencies of ozone-resistant micropollutants by considering the contribution of superoxide radicals, providing a valuable tool for predicting micropollutant removal during ozonation.
Review
Engineering, Environmental
Wenhong Fu, Jing Yi, Min Cheng, Yang Liu, Gaoxia Zhang, Ling Li, Li Du, Bo Li, Guangfu Wang, Xiaofeng Yang
Summary: The heterogeneous Fenton-like reaction is efficient in removing organic contaminants. Bimetallic oxides and their complexes are gaining attention due to their high catalytic performance and stability. synergistic effect of the two metals in the bimetallic catalysts can enhance the utilization of hydrogen peroxide and improve catalytic performance.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Qiang Bi, Sisi Jiang, Changfeng Hu, Li Zhang, Yilin Zhao, Bo Yang, Guoping Li, Juanqin Xue
Summary: In this study, a N/Co-co-doped graphite gas diffusion electrode (Co-NG GDE) has been prepared and applied in the E-peroxone system. Surprisingly, Co-NG GDE exhibits the highest degradation efficiency for phenol and oxalate, despite its poor performance in the ORR to H2O2. The abundance of O2(center dot-) produced by Co-NG GDE, due to its higher pyridine-N content, can replace H2O2 to form super-active center dot OH.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Jireh Joy D. Sacramento, Therese Albert, Maxime Siegler, Pierre Moenne-Loccoz, David P. Goldberg
Summary: A new ferrous corrole complex [Fe-II(ttppc)](-) has been shown to bind dioxygen to form Fe-O-2, exhibiting an O-16/18(2)-isotope sensitive n(O-O) stretch at 1128 cm(-1) and a single n(Fe-O-2) at 555 cm(-1). This complex can mediate the dioxygenation of an indole derivative and extract hydrogen atoms from activated O-H bonds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Sin-Yi Liou, Michael C. Dodd
Summary: The reaction of hypochlorous acid with superoxide radical can be a novel nonphotochemical advanced oxidation process, generating hydroxyl radical and various reactive chlorine species, with high radical exposures, simplicity, rapid time-scales, and potential for on-site superoxide generation.
Article
Engineering, Environmental
Kefeng Shang, Rino Morent, Ning Wang, Yongxin Wang, Bangfa Peng, Nan Jiang, Na Lu, Jie Li
Summary: The study shows that persulfate can enhance the degradation of sulfamethoxazole in a water falling film dielectric barrier discharge plasma reactor, with PMS performing better than PDS. Increasing the applied voltage, solution pH, and PMS/PDS concentration promotes SMX degradation. The reactive species generated from the activation of PMS/PDS by discharge plasma play a key role in SMX degradation, with center dot OH and SO4 center dot- being particularly important.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Yang Guo, Gang Yu, Urs von Gunten, Yujue Wang
Summary: Superoxide radicals (O-2(center dot-)) are important chain carriers in the radical chain reaction during ozonation, promoting the decomposition of ozone (O-3) to hydroxyl radicals ((OH)-O-center dot). This study used a probe compound and kinetic modeling to evaluate the role of O-2(center dot-) for O-3 decomposition during ozonation of synthetic solutions and natural waters. The results showed that O-2(center dot-) plays a critical role in promoting O-3 decomposition, with its contribution ranging from 45-70% depending on water composition.
Review
Environmental Sciences
Qingya Fan, Lingli Wang, Yu Fu, Qingchao Li, Yunjiao Liu, Zhaohui Wang, Huaiyong Zhu
Summary: The redox cycling of iron (III)/iron (II) in clay minerals plays an important role in the biogeochemical cycles of nutrients and the behavior of environmental contaminants. Different types of iron in clay minerals exhibit distinct reactivity towards contaminants. This review summarizes recent discoveries on the redox reactivity of iron in clay minerals and its links to the fate of environmental contaminants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Zhenran Wang, Jiewen Deng, Yunlan Peng, Shixiang Wang, Yongsheng Fu, Yiqing Liu
Summary: This study demonstrates the effective removal of diclofenac (DCF) using the Cu(II)/hydroxylamine (HAm)/peroxydisulfate (PDS) system under neutral conditions. The introduction of HAm significantly enhances the degradation of DCF by accelerating the Cu(I)/Cu(II) cycle. The study also investigates the effects of various operational parameters and water matrix components on DCF degradation. Additionally, the Cu(II)/HAm/PDS system shows potential for degrading other emerging organic contaminants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Hongyu Li, Yan An, Xue Luo, Jie Gao, Mingyan Yang, Xinmin Li, Xiaohua Li, Wen Shi, Zeli Yuan, Huimin Ma
Summary: The researchers have developed a near-infrared fluorescence probe CDHQ for studying cell death, which reveals the generation of hydroxyl radicals during this process. This probe can detect trace levels of hydroxyl radicals that cannot be detected by other methods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Nacer Belkessa, Youcef Serhane, Abdelkrim Bouzaza, Lotfi Khezami, Aymen Amin Assadi
Summary: This study investigates the photocatalytic oxidation of ethylbenzene vapor using TiO2 catalyst and explores the role of reactive species and degradation pathways. The results show that water vapor content, reaction atmosphere, and UV radiation wavelength significantly affect the degradation of ethylbenzene, with the hydroxyl radical playing a major role in the photocatalytic mechanism.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Meixian Liu, Junliang Liu, Xianmo Gu, Peng Kong, Yehua Han, Xing Wang, Zhanfeng Zheng
Summary: During the photomineralization of phenolic pollutants using carbon nitride, the co-modification of hydroxyl groups and carbon vacancies can enhance the in-situ mineralization of phenol and prevent the formation of refractory polymers.
JOURNAL OF CATALYSIS
(2023)
Article
Engineering, Environmental
Yixin Huang, Jing Zou, Jinbin Lin, Haoyu Yang, Mengyun Wang, Jiawen Li, Wei Cao, Baoling Yuan, Jun Ma
Summary: This study discovers that 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) can serve as both an activator and an electron shuttle to enhance the activation of peroxydisulfate (PDS) and enhance the degradation of diclofenac (DCF). The PDS/ABTS system generates multiple reactive species, with ABTS(center dot+) and (OH)-O-center dot directly contributing to the degradation of DCF. The PDS/ABTS system shows good anti-interference capacity and further improved performance can be achieved by encapsulating ABTS into cellulose.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xiaoqing Lin, Longqian Xu, Zhenyu Zhao, Shanshan Liu, Jiaming Zhang, Deli Wu
Summary: Low electron-transfer efficiency and cumbersome processes greatly hinder the application of Fe-based materials for treating electroplating wastewater. This study successfully synthesized ferrous/ferric hydroxide complex (FHC) which greatly improved the electron-transfer efficiency for Cr(VI) removal. The sulfate interlayer of FHC was found to strongly promote Cr(VI) removal, showing potential for enhancing the reactivity of FHCs in remediating Cr(VI)-contaminated electroplating wastewater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yang Zong, Yufei Shao, Wenjie Ji, Yunqiao Zeng, Jun Xu, Wen Liu, Longqian Xu, Deli Wu
Summary: In this study, it was discovered that trace Mn(II) can effectively catalyze the oxidation of organic contaminants by periodate (PI), outperforming the representative TRSs-dominated AOPs. The formation of colloidal MnO2 was found to be responsible for the enhanced treatment performance, serving as both oxidant and catalyst. The study elucidated the roles of Mn(II) and colloidal MnO2 in PI-mediated contaminant degradation, highlighting the superiority of trace catalyst-assisted process without TRSs involvement in maximizing oxidation efficiency and avoiding undesired side reactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaoqing Lin, Canming Ma, Deli Wu
Summary: This study reveals that Cu(II)-enhanced ozonation greatly promotes the decay of fatty amines by enhancing direct ozone oxidation. Trace Cu(II) amplifies the observed rate constants of dimethylamine and trimethylamine. The formation of center dot OH and O2 center dot- is inhibited rather than promoted, and the enhanced effect of trace Cu(II) is exhibited in both single and complex malodorous compounds.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Bing Zhang, Shiyu Tian, Deli Wu
Summary: In this study, an integrated strategy of P pre-cipitation and N stripping was proposed to harvest high-purity nutrient products from hydrolyzed urine. The results showed that the scheme provides an efficient approach for P and N recovery and advances the knowledge of precipitation transformation mechanism.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Yang Zong, Wenjie Ji, Yu Xie, Deli Wu
Summary: In this study, the presence of 0.5 mM Ni(II) was found to enhance the mineralization efficiency of EDTA by O3 under alkaline conditions. The promoting effect of Ni(II) increased with the increasing loading of Ni(II). It was also discovered that the overlooked Ni(III) species (NiOOH) played an indispensable role in enhancing the mineralization of EDTA.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jinhong Fan, Jia Liu, Ying Cai, Zhigang Liu, Deli Wu
Summary: In this study, mackinawite (FeS) was used to activate persulfate (PS) for the removal of tetracycline (TTC). The effect of coexisting Cu(II) on TTC degradation was investigated at different initial pHs. It was found that at an initial pH of 3, nearly 100% removal of TTC was achieved in 5 minutes, with or without Cu(II). Furthermore, a significant increase in the degradation rates of TTC was observed in the presence of Cu(II) at an initial pH of 9.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yang Zong, Long Chen, Yunqiao Zeng, Jun Xu, Hua Zhang, Xiaomeng Zhang, Wen Liu, Deli Wu
Summary: Hindered amine-based electron paramagnetic resonance (EPR) spectroscopy is widely used to detect singlet oxygen (O-1(2)) generated in advanced oxidation processes. However, false detection of O-1(2) can occur due to the interference of reactive species, such as (OH)-O-center dot and high-valence Fe. This study reveals that EPR-based O-1(2) detection can be remarkably misled by common oxidative species and jeopardize the understanding of O-1(2).
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yunfeng Mao, Huai Qin, Hua Zhang, Weidong Wu, Deli Wu
Summary: Capacitive deionization (CDI) is efficient for removing aqueous Cs ions due to their small size and low hydration energy. However, it is difficult to investigate the influence of key electrode characteristics experimentally. In this study, a dynamic transport model is used to investigate the effect of electrode thickness and porosity on Cs ion removal efficiency and energy efficiency.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Yunfeng Mao, Shunnan Long, Xingyu Kuai, Longqian Xu, Hua Zhang, Weidong Wu, Deli Wu
Summary: Capacitive deionization (CDI) is a promising technology for water deionization. Our study quantitatively reveals the influence of key parameters on CDI performance, including electrode characteristics, operation conditions, and ion properties. We find that pore size distribution and connectivity play a significant role in salt ion diffusion and adsorption, while porosity has a small influence. The current and salt concentration also affect CDI performance by influencing charging time and removal efficiency. Our work highlights the importance of proper electrode and operation conditions for high desalination performance and energy efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Longqian Xu, Deli Wu
Summary: In order to overcome the challenges of limited pH application range, slow cycling of Fe(III)/Fe(II), and low oxidant activation efficiency, we propose a strategy of using molybdenum powder (Mo) cocatalyst combined with sodium tripolyphosphate (STPP) for efficient degradation of acetaminophen (ACT) using peroxymonosulfate (PMS) activation. The high degradation efficiency and rate achieved were attributed to the abundant active sites of Mo that accelerate the formation of dissolved Fe species complexed with STPP. The system showed excellent cocatalytic performance, reusability, and a desirable capability for removing various contaminants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Shanshan Liu, Longqian Xu, Xiaoqing Lin, Jiaming Zhang, Deli Wu
Summary: In this study, an electrochemical oxidation (EO) process using commercial Ti/IrO2-RuO2 anodes was employed to remove ammonia from black water. By adjusting the dosage of chloride, 100% removal of ammonia was achieved. The relationship between ammonia, chloride, and the degradation rate constant (K-obs) was used to determine the optimal chloride dosage and predict ammonia oxidation kinetics. The electrochemical process showed potential as a treatment method for black water, but the high chloride dosage also resulted in the generation of toxic by-products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Longqian Xu, Shuai Peng, Liang Tang, Yang Zong, Yunfeng Mao, Minghong Wu, Deli Wu
Summary: This study introduces a method to remotely manipulate the transport of suspension electrodes by employing a magnetic field, which increases the salt removal rate. The mechanism of magnetic FCDI includes increasing the concentration of active electrodes, increasing contact sites, and shortening ion transport distance. It is also discovered that magnetic carbon can be used as a novel active electrode.
ACS ES&T ENGINEERING
(2023)
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)