Article
Engineering, Chemical
Zhenggang Wang, Jianwei Yuan, Renhao Li, Haipeng Zhu, Jingui Duan, Yanan Guo, Gongping Liu, Wanqin Jin
Summary: This study utilized ZIF-301 MOF as filler to fabricate mixed-matrix membranes for CO2/CH4 separation, resulting in membranes with excellent transport properties obtained through a solvent exchange approach. The incorporation of ZIF-301 enhanced both CO2 permeability and CO2/CH4 selectivity, surpassing the 2008 Robeson upper-bound and showing potential for application in natural gas purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Michael Teixeira, Renata A. Maia, Sangaraju Shanmugam, Benoit Louis, Stephane A. Baudron
Summary: Deep eutectic solvents (DES) based on different urea derivatives have been shown to be efficient alternatives for the ionothermal synthesis of Mg-MOF-74, with significant impact on the material's morphology and sorption properties. The choice of solvent and synthesis conditions leads to the formation of intermediate crystalline phases and influences the final morphology, thus affecting the material's characteristics.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Applied
Xuan Zhang, Qing-rong Zheng, Hong-zhou He
Summary: In this study, a new type of porous material for hydrogen purification from COG was developed by synthesizing M-MOF-74 and incorporating super activated carbon. It was found that Mg-MOF-74 has the highest selectivity value, and blending with AX-21 significantly increased the adsorption capacity and selectivity values.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Haifei An, Weijian Tian, Xin Lu, Huanmei Yuan, Liyun Yang, Hao Zhang, Haoming Shen, Hao Bai
Summary: In this study, a defect-rich hierarchical porous Mg-MOF-74 was synthesized, which showed ligand deletion, increased mesopores and improved CO2 adsorption capacity. The hierarchical porous Mg-MOF-74 has great potential for application in carbon capture technology for industrial flue gas.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Xiaoqian Peng, Jing Zhang, Jinqiang Sun, Xiaochan Liu, Xinfu Zhao, Shimo Yu, Zhipeng Yuan, Sijia Liu, Xibin Yi
Summary: Solid physical adsorption is a promising method for capturing CO2. In this study, a composite aerogel was prepared to achieve efficient CO2 capture. The composite aerogel exhibited a hierarchical porous structure with sodium alginate promoting diffusion and contact, and Mg-MOF-74 facilitating strong adsorption and rapid transfer of CO2.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Agustin A. Godoy, Dimar Villarroel-Rocha, Jose Joaquin Arroyo-Gomez, Celeste Bernini, Griselda Narda, Karim Sapag
Summary: This study investigated the influence of degassing temperature and urea functionalization on the CO2 adsorption performance of CPO-27-Mg. Four samples with different degrees of urea functionalization were obtained through post-synthesis modification treatments. The influence of degassing temperature on the non-functionalized MOF was also evaluated. The resulting compounds were characterized and the thermally treated and functionalized CPO-27-Mg was evaluated for CO2 capture.
Article
Chemistry, Inorganic & Nuclear
Muhammad Abbas, Amanda M. Maceda, Zhifeng Xiao, Hong-Cai Zhou, Kenneth J. Balkus
Summary: A new mixed linker metal-organic framework (MOF), CuMOF-Bipy, has been synthesized using a copper-based MOF and 2,2'-bipyridine. The crystal structure of CuMOF-Bipy consists of a stacked two-dimensional framework with one-dimensional sinusoidal channels. CuMOF-Bipy shows selective diffusion of CO2 but not N-2.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Chemical
Ke Chen, Linhan Ni, Xin Guo, Chengming Xiao, Yue Yang, Yujun Zhou, Zhigao Zhu, Junwen Qi, Jiansheng Li
Summary: This study demonstrates the successful incorporation of pyrazole-based metal-organic frameworks (MOF-303) into polymer of intrinsic microporosity (PIM-1) through a physical blending approach, resulting in mixed matrix membranes (MMMs) with remarkable separation performance. The MMMs exhibit improved CO2 permeability and well-maintained CO2/CH4 selectivity compared to unfilled PIM-1 membranes. Notably, the MMMs also display excellent stability, resistance against physical aging, and reinforced resistance to plasticization compared to the control PIM-1 membranes. This research provides a novel approach for the rational design of MMMs in CO2 separation applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaolei Cui, Zixi Kang, Weidong Fan, Jia Pang, Yang Feng, Caiyan Zhang, Liting Yu, Shuo Liu, Xiuxian Tang, Lili Fan, Rongming Wang, Daofeng Sun
Summary: The introduction of ionic liquids (ILs) can enhance the selective adsorption and separation of CO2, improving the performance of MOF monomer based membranes. By utilizing a simple post-modification strategy, ILs are used to fill the interspaces of MOF monomer based membranes, resulting in improved CO2/CH4 sieving performance. The interaction between ILs and the membrane contributes to the stability of the separation process.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Biochemistry & Molecular Biology
Harun Kulak, Raymond Thur, Ivo F. J. Vankelecom
Summary: This study investigates the impact of various synthesis parameters on the preparation process and CO2/CH4 separation performance of mixed-matrix membranes (MMMs). The results highlight the critical role of solvent evaporation rate in influencing the performance and appearance of the membranes. Additionally, polymer concentration and solution volume play important roles in controlling solution viscosity, particle agglomeration, and settling rate. Chloroform-based MMMs exhibit the highest performance among the studied solvents.
Review
Chemistry, Multidisciplinary
Jong Hyeak Choe, Hyojin Kim, Chang Seop Hong
Summary: Carbon capture and storage (CCS) aims to deal with the carbon dioxide (CO2) emitted by power plants, and next-generation adsorbents like metal-organic framework (MOF) adsorbents are gaining attention for their high surface area, tunable pore size, and low heat capacity. Among MOFs, MOF-74 type analogs are known for their high CO2 adsorption performance due to open metal sites, and research is focused on enhancing their CO2 capacity and selective adsorption through modifications of organic linkers and metal sites.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Engineering, Environmental
Mengdan Ma, Anning Zhou, Tao Hong, Xinyu Jia, Moxuan Liu
Summary: In this study, the effect of solvent polarity on the structure and CO2 adsorption performance of Mg-MOF-74 was investigated by applying the Kamlet-Taft method. It was found that the crystal structure and morphology of Mg-MOF-74 could be controlled by adjusting the β/α value of the solvent. The size of solvent molecules also played a crucial role in determining the pore size of Mg-MOF-74.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Chunling Xin, Yang Ren, Zhaofei Zhang, Lili Liu, Xia Wang, Jinmei Yang
Summary: The hierarchical porous composite Mg-MOF-74/MCFs were successfully synthesized with a simple and facile method under in situ solvothermal conditions. The composites exhibit improved CO2 adsorption performance, especially after hydrothermal treatment, showing enhanced total CO2 adsorption capacity. The results suggest that the composites have potential applications in CO2 capture and storage due to their enhanced stability and adsorption properties compared to pristine Mg-MOF-74.
Article
Engineering, Chemical
Panagiotis Krokidas, Marcelle B. M. Spera, Lamprini G. Boutsika, Ioannis Bratsos, Georgia Charalambopoulou, Ioannis G. Economou, Theodore Steriotis
Summary: In this study, the researchers demonstrated how molecular-scale modifications of zeolitic-imidazolate frameworks (ZIFs) can greatly improve the CO2/CH4 separation performance of mixed-matrix membranes (MMMs) when used as additives. Through molecular simulations and experiments, they identified modified ZIF fillers that exhibit unprecedented CO2/CH4 separation performance, surpassing any reported MMM. This work highlights the effectiveness of ZIF nanoengineering in developing highly selective CO2 membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Qihui Qian, Ashley M. Wright, Hyunhee Lee, Mircea Dinca, Zachary P. Smith
Summary: Mixed-matrix membranes containing CO2-selective metal-organic frameworks have shown potential in improving energy efficiency for natural gas and biogas separation. A specific MMM system with a 6FDA-Durene polymer and an MFU-4 MOF demonstrated enhanced CO2/CH4 gas separation performance at low temperatures, primarily due to the higher polarizability and smaller size of CO2 compared to CH4. Additionally, the hybrid membrane showed competitive performance for H2S separation compared to literature materials designed specifically for this purpose.
CHEMISTRY OF MATERIALS
(2021)
Review
Food Science & Technology
Roberto Castro-Munoz, M. Zamidi Ahmad, Alfredo Cassano
Summary: Pervaporation is a selective membrane process for extracting aromas, fragrances, and essentials. Researchers are exploring various techniques to efficiently separate and recover these organic compounds from agricultural products and waste. This review provides an overview of the ongoing development approaches and establishes key criteria and guidelines for the implementation of pervaporation.
FOOD REVIEWS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Shahida Anusha Siddiqui, Nur Alim Bahmid, Ahmed Taha, Abdel-Moneim Eid Abdel-Moneim, Abdelrazeq M. Shehata, Chen Tan, Mohammad Saeed Kharazmi, Yuan Li, Elham Assadpour, Roberto Castro-Munoz, Seid Mahdi Jafari
Summary: This study reviews the application of nanoencapsulation in animal feedings and relevant drugs. Nanoencapsulation design can protect feed bioactives and improve their absorption and release in animals. Chitosan is found to be the most effective carrier. Nanoparticles and nanocapsules are commonly used nanocarriers. Nanofibers, nanohydrogels, and nanoemulsions have not been applied in feeds yet. For ruminants, nano-minerals, vitamins, phytochemicals, essential fatty acids, and drugs are encapsulated using nanoparticles for improved delivery and bioavailability. Safety and regulatory issues, as well as advantages and disadvantages of nanoencapsulation in animal feeds, are also discussed.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Sana Ullah, Hameed Ul Haq, Muhammad Salman, Faheem Jan, Faisal Safi, Muhammad Balal Arain, Muhammad Shahzeb Khan, Roberto Castro-Munoz, Grzegorz Boczkaj
Summary: In this study, deep eutectic solvents were used for the extraction of neutral red dye, and their interaction was studied using density functional theory calculations. The optimized method showed high sensitivity and rapid determination for neutral red dye.
Article
Materials Science, Multidisciplinary
K. Hamalova, V Neubertova, M. Vostinakova, V Fila, Z. Kolska
Summary: In recent years, mixed matrix membranes (MMMs) have become increasingly popular in separation processes due to their outstanding properties. These membranes combine the advantages of both polymer continuous and nanoparticle dispersion phases. Block copolymers like poly(ether-block-amide, PEBA) are considered excellent materials for membrane synthesis. This study provides an overview of PEBA membranes doped with two different aminocompounds at various concentrations and their impact on CO2 sorption and separation. Most samples showed improved CO2 sorption compared to pristine PEBA, with the effect strongly dependent on concentration. The most significant changes were observed in the MMM doped with 2.5% TEPA or 1% HDA. Samples were also tested for the separation efficiency of a binary CO2/CH4 mixture.
Review
Food Science & Technology
Roberto Castro-Munoz, Grzegorz Boczkaj, Rene Cabezas
Summary: Melissa officinalis L. is a medicinal plant with high content of phytochemical compounds, which are responsible for its biological activities. It is used worldwide for ethno-medical purposes and has potential applications in the treatment of various diseases and symptoms. Research efforts have focused on the extraction and fractionation of the phytochemicals from this plant.
Article
Biochemistry & Molecular Biology
Roberto Castro-Munoz, Maksymilian Plata-Gryl, Grzegorz Boczkaj
Summary: The research focuses on combining a new deep eutectic mixture (DES) with a biopolymer-based membrane to dehydrate ethanol using pervaporation. An L-proline:xylitol (at 5:1) eutectic mixture was synthesized and blended with chitosan (CS). The hybrid membranes were thoroughly characterized in terms of morphology, solvent uptake, and hydrophilicity. When tested for water separation from ethanolic solutions through pervaporation, the blended membranes demonstrated higher water permeation (ca. 0.46 kg m(-2) h(-1)) compared to pristine CS membranes (ca. 0.37 kg m(-2) h(-1)) at the highest temperature (50 degrees C). Therefore, the blending of CS membranes with the hydrophilic L-proline:xylitol agent enhanced their water permeation, making them suitable for separating polar solvents.
Review
Chemistry, Physical
Shahida Anusha Siddiqui, Shubhra Singh, Nur Alim Bahmid, Taha Mehany, Douglas J. H. Shyu, Elham Assadpour, Narjes Malekjani, Roberto Castro-Munoz, Seid Mahdi Jafari
Summary: This paper systematically analyzes the identification of original articles using Scopus and Google Scholar on active packaging as a novel technology for controlling the release of antimicrobial agents in food packaging systems. The encapsulation of bioactives enhances their bioavailability and stability, and mathematical models play an important role in understanding and predicting their release behavior during transportation and storage. However, few studies have formulated parameters for mathematical models to achieve specific release mechanisms for the quality and safety of foods.
COLLOIDS AND INTERFACES
(2023)
Article
Biotechnology & Applied Microbiology
Jose J. Arriaga-Morales, Cynthia Ordaz-Pichardo, Roberto Castro-Munoz, Enrique Duran-Paramo
Summary: Cell immobilization could be a significant vector for delivering a high quantity of viable probiotics to the gut, helping attenuate hyperglycemia in diabetic rats and reducing organ damage caused by diabetes.
PROBIOTICS AND ANTIMICROBIAL PROTEINS
(2023)
Editorial Material
Food Science & Technology
Roberto Castro-Munoz
Review
Food Science & Technology
Shahida Anusha Siddiqui, Iskandar Azmy Harahap, Priyanka Suthar, Yuan Seng Wu, Nibedita Ghosh, Roberto Castro-Munoz
Summary: This study investigates traditional diets for treating obesity and examines the efficacy and safety of phytochemicals in preventing and treating obesity. It also introduces new food formulations incorporating these phytonutrients that can help reduce the prevalence of obesity.
Review
Biochemistry & Molecular Biology
Muhammad Imad, Roberto Castro-Munoz
Summary: This review provides an overview of the recent advancements in the application of PV membranes, including polymeric membranes, inorganic membranes, mixed-matrix membranes, and emerging two-dimensional-material membranes, for ethanol purification. The challenges and opportunities in material design, fabrication techniques, and the establishment of structure-performance relationships are discussed, aiming to propel the development of next-generation pervaporation membranes with enhanced separation efficiency.
Article
Biotechnology & Applied Microbiology
Brenda Aranda-Jaramillo, Elizabeth Leon-Becerril, Oscar Aguilar-Juarez, Roberto Castro-Munoz, Octavio Garcia-Depraect
Summary: This study investigates the feasibility of producing hydrogen from acid cheese whey via lactate-driven dark fermentation (LD-DF). The results show that it is technically feasible to produce hydrogen from undiluted cheese whey through lactate oxidation-mediated fermentation. Microbial community analysis reveals that Lactobacillus, Clostridium, and Klebsiella were the dominant bacterial genera when the hydrogen production rate peaked. It is suggested that LD-DF can be a strategic hydrogen-producing pathway to be implemented with cheese whey.
FERMENTATION-BASEL
(2023)
Article
Chemistry, Physical
Jack W. Jordan, Ganesh Vailaya, Conrad Holc, Max Jenkins, Rory C. Mcnulty, Constantin Puscalau, Begum Tokay, Andrea Laybourn, Xiangwen Gao, Darren A. Walsh, Graham N. Newton, Peter G. Bruce, Lee R. Johnson
Summary: Li-air batteries have high practical energy densities, but gas handling and electrode designs need to be improved.
FARADAY DISCUSSIONS
(2023)
Article
Computer Science, Interdisciplinary Applications
Archibald Frank Ankrah, Begum Tokay, Colin E. Snape
Summary: Effective regeneration of adsorbents is crucial for their commercial use. This study evaluated the regenerability and reusability of fly-ash derived zeolite (FADZ) and its effectiveness in recovering copper (Cu2+) ions from water. The results showed that up to 90% recovery was achieved through three successive regenerations using acid and salt solutions. The desorption kinetics could be described by a pseudo-second order model, and the Freundlich model better represented the desorption of Cu2+ ions.
ENGINEERING REPORTS
(2023)
Article
Engineering, Environmental
Mohd Zamidi Ahmad, Pavel Izak, Vlastimil Fila
Summary: This study compares the gas separation performance of a high free volume fluorinated 6FDA-polyimide, 6FDA-bisP, with a well-investigated, lower free volume 6FDA-ODA in the form of mixed matrix membranes (MMMs) with zeolitic imidazolate framework (ZIF-8) nanoparticle addition. The MMMs showed superior performances, with the optimum loading at 15 wt% for 6FDA-bisP and 10 wt% for 6FDA-ODA. Different gas permeability models were used to analyze the obtained data.
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)
