Article
Chemistry, Multidisciplinary
Soochan Lee, Dongsik Nam, David ChangMo Yang, Wonyoung Choe
Summary: This study efficiently identifies synthesizable candidate topologies for zeolitic imidazolate frameworks (ZIFs) from a zeolite database containing over 2,000,000 hypothetical structures, using structural descriptors extracted from known ZIFs. Intuition-based structural descriptors, such as ring patterns, node numbers, and T-O-T bridging angles, are used as data filters to eliminate infeasible topologies for ZIF formation. The carefully chosen structural descriptors facilitate the prediction of plausible ZIF topologies. Hydrogen adsorption screening is performed to investigate potential applications as porous ZIFs, leading to the suggestion of notable target ZIFs. The collection of new plausible ZIFs, derived from the combined descriptors, will serve as a structural blueprint for synthetic chemists.
Review
Chemistry, Physical
Shuyue Jia, Dongxiao Ji, Liming Wang, Xiaohong Qin, Seeram Ramakrishna
Summary: This review introduces the research progress in the fabrication of metal-organic framework (MOF) membranes, including the preparation of pure MOF membranes and the incorporation of MOFs into polymer matrix. Through the analysis of classic cases, the advantages and disadvantages of different preparation strategies and products are compared, providing general knowledge for the needs of different application scenarios. The important role that MOF membranes play in the applications of separation, adsorption, and catalysis is highlighted, along with the opportunities and challenges in this new era.
Article
Chemistry, Physical
Shubhadeep Nag, Prabal K. Maiti, Subramanian Yashonath
Summary: The novel method proposed in this study utilizes modified intermolecular interaction potentials and hot zones in specific zeolite materials to achieve efficient separation of hydrocarbon mixtures with high separation factors. The method requires minimal energy and is suitable for green chemistry applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Annika F. Moslein, Jin-Chong Tan
Summary: In this study, the complex physical phenomena and structural dynamics of ZIF-71 were investigated through experimental and computational techniques. The vibrational modes of ZIF-71 were assigned and low-energy terahertz dynamics were discovered. Nanoscale analytical methods were used to explore the local chemical and mechanical properties of ZIF-71 single crystals.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Multidisciplinary Sciences
Yan Su, Ken-ichi Otake, Jia-Jia Zheng, Satoshi Horike, Susumu Kitagawa, Cheng Gu
Summary: Efficient separation of water isotopologues at room temperature has been achieved by constructing porous coordination polymers with flip-flop molecular motions to regulate the diffusion rates of water isotopologues. This method shows promise for high-performance vapor separation.
Article
Green & Sustainable Science & Technology
Philipp Brandt, Alexander Nuhnen, Secil Ozturk, Gulin Kurt, Jun Liang, Christoph Janiak
Summary: The search for adsorbents for flue gas desulfurization processes is a current interest. The experimental study found that microporous materials with pore sizes in the range of 4-8 angstrom or with nitrogen heterocycles are optimal for SO2 uptake in the low-pressure range. Zeolite Y and SAPO-34 were found to be stable toward humid SO2, and Zeolite Y and CTF-1(600) showed the most promising SO2/CO2 selectivity results.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Shuangshuang Jiang, Xinli Shi, Yucong Zu, Fuxing Sun, Guangshan Zhu
Summary: The study introduced a simple and environmentally-friendly method for preparing high-quality metal-organic framework membranes through the contra-diffusion method, demonstrating excellent CO2 selective permeability and long-term stability.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Febrian Hillman, Mohamad Rezi Abdul Hamid, Panagiotis Krokidas, Salvador Moncho, Edward N. Brothers, Ioannis G. Economou, Hae-Kwon Jeong
Summary: The delayed linker addition (DLA) synthesis strategy allows for efficient incorporation of Im linkers into ZIF-8 framework, improving gas separation performance. The Im/ZIF-8 synthesized via DLA demonstrates outstanding performance in gas separation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Yaqi Wu, Bert M. Weckhuysen
Summary: This Minireview focuses on the developments of the adsorptive separation of methane/nitrogen, ethene/ethane, propene/propane mixtures as well as on the separation of C-8 aromatics with various materials. The advantages and disadvantages of each material category are discussed, and guidelines for the design of improved materials are proposed. Furthermore, challenges and future developments of each material type and separation processes are discussed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Primoz Poredos, He Shan, Chenxi Wang, Fangfang Deng, Ruzhu Wang
Summary: Sorption and radiative sky cooling technologies have the potential to provide decentralized fresh water, but continuous operational devices are needed. Current energy materials and system designs have limitations that hinder continuous AWH. By addressing these challenges, 24-hour continuous fresh water generation can be achieved.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Oksana Smirnova, Subham Ojha, Ankita De, Andreas Schneemann, Frederik Haase, Alexander Knebel
Summary: This article discusses the current state of reticular chemistry in the synthesis of highly porous nanomaterials for gas separation, with a focus on membrane technology. It explores the design of narrow pore windows for high-resolution molecular sieving and presents promising concepts such as neat materials and mixed matrix membranes. The article sheds light on the potential use of reticular materials as membrane components and provides strategies and guiding principles for the future development of reticular nanomaterials-based membranes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Environmental Sciences
J. M. Queiros, H. Salazar, A. Valverde, G. Botelho, R. Fernandez de Luis, J. Teixeira, P. M. Martins, S. Lanceros-Mendez
Summary: This study developed a water filtering technology that is easily reactivable and reusable by immobilizing sorbents into a polymeric substrate. The immobilized sorbents exhibited excellent Cr(VI) adsorption capacity and the technology showed promising performance in treating real water effluents.
Article
Chemistry, Multidisciplinary
Adrian Fuchs, Fabian Knechtel, Haoze Wang, Zhe Ji, Stefan Wuttke, Omar M. Yaghi, Evelyn Ploetz
Summary: Metal-organic frameworks (MOFs) are porous materials that can easily absorb and release water, making them ideal for atmospheric water harvesting applications. In this study, a new method using Raman spectroscopy was used to investigate the behavior of MOF-801 at the single-crystal level, providing valuable insights into its water adsorption capabilities. The results revealed significant differences in water uptake between the single-crystal and bulk material.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xiaoqian Zhu, Tian Ke, Jingyi Zhou, Yifei Song, Qianqian Xu, Zhiguo Zhang, Zongbi Bao, Yiwen Yang, Qilong Ren, Qiwei Yang
Summary: Developing adsorbents with multiple merits in capacity, selectivity, mass transfer, and stability is crucial for producing high-purity C2H2 for advanced polymers and the electronic industry. We demonstrate a vertex strategy to create adsorbents with these merits through rationally designing the vertex groups of a wavy-shaped framework in 2D metal-organic frameworks.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Arijit Halder, Ryan A. Klein, Sarah Shulda, Gavin A. McCarver, Philip A. Parilla, Hiroyasu Furukawa, Craig M. Brown, C. Michael McGuirk
Summary: Step-shaped adsorption-desorption of gaseous payloads by flexible metal-organic frameworks can facilitate the delivery of large usable capacities with reduced energetic penalties. The multivariate linker approach is a powerful tool for tuning the phase change behavior of flexible frameworks. In this work, a multivariate framework was developed with a considerably reduced threshold pressure and desirable adsorption-desorption profile for efficient storage and delivery of weakly physisorbing species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Kishore K. Jena, K. Suresh Kumar Reddy, Georgios N. Karanikolos, Daniel S. Choi
Summary: In this study, zeolite-Ag2S nanohybrid material was synthesized and its structure and morphology were characterized. The adsorption property of the material was investigated by studying the mercury adsorption. The results showed that the nanohybrid material had higher adsorption capacity compared to pure zeolite, and the adsorption capacity increased with increasing temperature.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Shafali Garg, Vandana Mishra, Lourdes F. Vega, Radhey Shyam Sharma, Ludovic F. Dumee
Summary: The implementation of hydrogen as a renewable and clean energy source has the potential to replace fossil fuels and decarbonize hard-to-abate sectors, but safety measures are required due to hydrogen's flammability. Current commercial hydrogen sensors are expensive and complex, but emerging biosensing technologies show promise with their high sensitivity and ability to operate in complex environments. This review highlights recent developments in hydrogen biosensing and compares them to conventional sensors, presenting opportunities and challenges in this field.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Review
Engineering, Chemical
Gabriele Scandura, Priyanka Kumari, Giovanni Palmisano, Georgios N. Karanikolos, Julius Orwa, Ludovic F. Dumee
Summary: The development of porous metal materials with nanoscale pore geometries and sizes has promising potential for smart responsive interfaces, separation and catalytic applications, and complex composite materials. Dealloying is an innovative technique that selectively removes sacrificial metals from alloys to engineer surface textures and pores. Dealloyed structures can be processed at large scales and offer unprecedented manufacturing opportunities. This review discusses the operations, challenges, and potential applications of dealloying, highlighting future prospects for surface reactivity control and pore architecture development.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Yuting Li, Daniel Bahamon, Mutasem Sinnokrot, Lourdes F. Vega
Summary: In this study, the adsorption and dissociation of H2S on CdS surfaces were investigated using dispersion-corrected density functional theory (DFT-D3). The most stable surface was found to be the (110) facet, while the most active surface (100) was quickly covered by sulfur, which was unfavorable for catalyst stability and reuse. Moreover, CdS surfaces with an S vacancy demonstrated enhanced catalytic performance by reducing energy barriers and reaction energies for the hydrogen evolution process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Biomedical
Aibobek Seitak, Aya Shanti, Kenana Al Adem, Nouran Farid, Shaohong Luo, Javad Iskandarov, Georgios N. Karanikolos, Kin Liao, Vincent Chan, Sungmun Lee
Summary: MXenes are a new class of 2D nanomaterials with unique properties, and their potential for biomedical applications has been explored in this study. The researchers developed a drug delivery system using MXene and found that it had good biocompatibility and controlled release capabilities for therapeutic proteins.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2023)
Article
Environmental Sciences
Gerardo D. J. Guerrero Pena, K. Suresh Kumar Reddy, Anish Mathai Varghese, Azhagapillai Prabhu, Aasif A. Dabbawala, Kyriaki Polychronopoulou, Mark A. Baker, Dalaver Anjum, Gobind Das, Cyril Aubry, Mohamed I. Hassan Ali, Georgios N. Karanikolos, Abhijeet Raj, Mirella Elkadi
Summary: Carbon dioxide (CO2) and soot particles are major contributors to global warming. In this study, diesel soot nanoparticles were chemically treated with hydrogen peroxide (H2O2) and potassium hydroxide (KOH) to produce activated carbons with enhanced CO2 adsorption capacity. The synthesized activated carbons showed promising CO2 adsorption capacities and selectivity, indicating their potential for efficient carbon dioxide capture.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Hassan A. Salih, Ismail I. I. Alkhatib, Mohammad Abu Zahra, Lourdes F. Vega
Summary: Novel hybrid slurries containing solid adsorbents were formulated for CO2 capture, and they showed better performance than benchmark solvents in terms of absorption energy and CO2 uptake. The hybrid slurry based on PEI-MCM41 exhibited the highest CO2 uptake and lowest regeneration energy. These results encourage further development and optimization of hybrid slurry systems for efficient CO2 capture.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Engineering, Chemical
Fahmi Anwar, K. Suresh Kumar Reddy, Anish Mathai Varghese, Maryam Khaleel, Kean Wang, Georgios N. Karanikolos
Summary: Paraffin-selective adsorbents for ethane/ethylene separation were developed using surface-functionalized mesoporous silica adsorbents. The adsorbents exhibited reverse selectivity, becoming paraffin-selective due to enhanced van der Waal's interactions between the grafted ionic liquids and ethane. Various silica-based adsorbents functionalized with different loadings, anion, and cation types were synthesized and characterized. The adsorbents showed stable performance in pressure swing adsorption and breakthrough cyclic testing, with a breakthrough ethylene productivity of up to 1.2 mmol/g and a breakthrough selectivity of 2.4.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Qiangshun Guan, Aikifa Raza, Samuel S. Mao, Lourdes F. Vega, TieJun Zhang
Summary: Passive radiative cooling is an efficient and eco-friendly method to cool objects by dissipating heat to outer space. Colored radiative cooling (CRC) has gained attention for its advantages over conventional cooling methods, but existing CRC films are opaque and generate waste heat. In this study, a transmissive CRC film is proposed, consisting of a solar transparent selective emitter and a nanocavity-based color filter, allowing light transmission and vivid colors. A mixed-integer memetic algorithm is used to optimize the top emitter for subambient cooling and sunlight penetration, while a tandem neural network is employed to determine the bottom nanocavity structure for on-demand color generation. This methodology has the potential to broaden the applications of passive radiative coolers in energy-efficient buildings, power-generating windows, and sustainable greenhouses.
Article
Engineering, Environmental
Samar N. Abd Elwadood, K. Suresh Kumar Reddy, Yasser Al Wahedi, Ali Al Alili, Andreia S. F. Farinha, Geert-Jan Witkamp, Ludovic F. Dumee, Georgios N. Karanikolos
Summary: Water shortage has a severe impact on drought-stricken regions, affecting nearly half a billion people annually. Composites of Salt and Porous Matrix (CSPMs) show promise for water vapor sorption. In this study, CSPMs were synthesized by loading highly hygroscopic salts (LiCl and CaCl2) onto SAPO-34 porous crystals. The resulting composites exhibited higher water uptake and improved cyclability compared to the parent SAPO-34.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Mariam Ouda, Fawzi Banat, Shadi W. Hasan, Georgios N. Karanikolos
Summary: Microplastics and nanoplastics are emerging water and wastewater pollutants with high toxicity and low degradation. Nanotechnology-based strategies using nanomaterials offer efficient methods for the removal of these pollutants through adsorption, photocatalysis, and membrane filtration. This review critically assesses the relationship between properties and performance, highlights challenges such as quantification and the impact of other contaminants, and suggests process-specific considerations and limitations for further research and development.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Prabhu Azhagapillai, K. Suresh Kumar Reddy, Gerardo D. J. Guerrero Pena, Rukayat S. Bojesomo, Abhijeet Raj, Dalaver H. Anjum, Mirella Elkadi, Georgios N. Karanikolos, Mohamed I. Ali
Summary: This study utilized waste biowaste (crude glycerol residue from waste cooking oil transesterification) to fabricate mesoporous crude glycerol-based porous carbons (mCGPCs) using a template method, and compared them with commercial activated carbon and CMK-8 prepared using sucrose. The results showed that mCGPCs exhibited superior CO2 adsorption capacity, slightly lower than CMK-8 but higher than activated carbon. This study successfully synthesized a mesoporous carbon material using biowaste and demonstrated its application as a CO2 adsorbent.
Article
Engineering, Environmental
Fatema Khamis, Mahendra Kumar, Petros G. Koutsoukos, Fawzi Banat, Hassan A. Arafat, Georgios N. Karanikolos
Summary: In recent years, membrane technologies, particularly ultrafiltration, have emerged as a promising solution for water treatment. However, fouling remains a significant challenge in membrane applications, leading to a decline in membrane performance over time. To address this issue, the development of antifouling membranes has garnered considerable attention.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Materials Science, Multidisciplinary
Gabriele Scandura, Sana Eid, Ali A. Alnajjar, Twinkle Paul, Georgios N. Karanikolos, Dinesh Shetty, Khalid Omer, Rami Alqerem, Alaa Juma, Huanting Wang, Hassan A. Arafat, Ludovic F. Dumee
Summary: Stimuli-responsive metal-organic frameworks (MOFs) are versatile porous materials that can respond to external stimuli such as temperature, pressure, pH, and light. This review focuses on the design strategies for obtaining photo-responsive MOFs, including the encapsulation of photo-switchable molecules, fabrication of MOF composites, post-synthesis modification, and synthesis of MOFs with photo-responsive ligands. The review analyzes recent literature reports in terms of material chemistry and performance, compares different strategies, discusses future challenges, and addresses the fatigue issue of photo-responsive MOFs in prolonged irradiation cycling.
MATERIALS ADVANCES
(2023)
Article
Engineering, Chemical
Safique Anwer, Ismail I. I. Alkhatib, Hassan A. Salih, Lourdes F. Vega, Inas Alnashef
Summary: This study investigates the effect of water on novel amine-based deep eutectic solvents (DES) for CO2 capture. Experimental results show that water reduces the viscosity of the solvents, affects CO2 solubility and heat of absorption, and optimal water content is identified for best performance. Molecular models are developed to predict the solvents' properties at various conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
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)
