Review
Chemistry, Analytical
Alvaro Santana-Mayor, Ruth Rodriguez-Ramos, Antonio Herrera-Herrera, Barbara Socas-Rodriguez, Miguel Angel Rodriguez-Delgado
Summary: The development of sustainable chemistry has led to the emergence of new materials, with deep eutectic solvents (DESs) as a promising non-toxic alternative to toxic organic solvents, seeing a significant increase in their applications in analytical chemistry in recent years. The vast amount of information generated from studies associated with DESs needs continuous revision.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Aditi Prabhune, Ranjan Dey
Summary: Deep Eutectic Solvents (DESs) have emerged as potential alternatives to conventional solvents in many industrial applications due to their safety, greenness, ease of preparation and wide range of applications.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Analytical
Luana Bastos Santos, Rosivan Santos Assis, Jeferson Alves Barreto, Marcos Almeida Bezerra, Cleber Galvao Novaes, Valfredo Azevedo Lemos
Summary: In recent years, there has been a significant increase in the search for green chemistry principles in analytical methods. Solvents play a crucial role in green analytical chemistry, and certain criteria must be met for a solvent to be considered green, including availability, low toxicity, biodegradability, and low cost. However, the availability of green solvents is currently limited. Deep eutectic solvents (DESs) have emerged as a new and promising alternative to traditional solvents, attracting attention for their eco-friendly, inexpensive, and easily obtainable characteristics. This work provides a critical review of the use of DESs in liquid-phase microextraction (LPME) and their contributions to green chemistry.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Yu Chen, Fuguang Zhang, Haiyang Sun, Yi Chang, Ziyang Zhang, Zhenghui Liu, Mingshuai Yang
Summary: A new concept of green solvents called superlong supercooling solvents (SSSs) is proposed, which are metastable liquid solvents that can be used at temperatures around or slightly higher than room temperature before condensing after a superlong time. SSSs can serve as green alternatives to water, supercritical fluids, ionic liquids, and deep eutectic solvents (DESs).
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Organic
Noe Fanjul-Mosteirin, Vicente del Amo
Summary: There is a significant use of volatile organic compounds (VOCs) nowadays, which have serious disadvantages. Developing alternative reaction media to replace VOCs is crucial. Deep eutectic solvents (DESs) have garnered attention as surrogates, with this review summarizing organocatalytic transformations carried out in DESs for comparison with traditional VOC solvents.
Article
Energy & Fuels
Aleksandra Grudniewska, Natalia Pastyrczyk
Summary: In this study, a simple and green method using deep eutectic solvents (DESs) was developed to simultaneously extract proteins and xanthohumol (XN) from spent hops (SH). Protein and XN-rich precipitates were obtained, with the protein content being up to 87% higher than in the SH. This research demonstrates the potential of SH and DESs for environmentally friendly extraction of protein and XN-rich products.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Maninder Meenu, Vasudha Bansal, Sudha Rana, Nitya Sharma, Vinod Kumar, Vaishali Arora, Monika Garg
Summary: Anthocyanins are extracted using alternative solvents such as ionic liquids, deep eutectic solvents, and natural deep eutectic solvents, which are more environmentally friendly and efficient compared to conventional solvents. Acid-based deep eutectic solvents with 20-30% water content showed the highest anthocyanin extraction yield. Ultrasonic-assisted extraction was the most common and efficient method, and DES-based extracts exhibited the highest stability and antioxidant activity. Fruits and their by-products are the most commonly used samples, while cereal and legumes are less explored.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Review
Chemistry, Multidisciplinary
Lifang Chen, Yuhang Xiong, Hao Qin, Zhiwen Qi
Summary: This review summarizes the recent progress in experimental and theoretical studies on the dehydration of carbohydrates to produce 5-hydroxymethylfurfural (HMF) using ionic liquids (ILs) and deep eutectic solvents (DESs) as catalysts or solvents. It also provides an overview of catalytic transformations of HMF to downstream products using ILs and DESs. The challenges and prospects of ILs and DESs for the production of HMF and its derivatives from biomass are discussed.
Article
Biochemistry & Molecular Biology
Aina Mir-Cerda, Merce Granados, Javier Saurina, Sonia Sentellas
Summary: Agri-food industries produce a large amount of waste, which can be effectively reutilized within the circular economy. A study optimized the extraction of phenolic compounds from olive tree leaves using natural deep eutectic solvents (NADES), a more environmentally friendly alternative to conventional solvents. The NADES extraction showed improved efficiency compared to ethanol/water extraction, as confirmed by high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) analysis. The main polyphenols identified in the NADES extract were Luteolin-7-Oglucoside, Oleuropein, 3-Hydroxytyrosol, Rutin, and Luteolin.
Article
Chemistry, Physical
Yu Chen, Di Zhao, Yue Bai, Yaoting Duan, Cong Liu, Jiaming Gu, Xin Wang, Xuanchao Sun, Yuting Li, Lijuan Zhang
Summary: This study systematically investigates the refractive index of typical deep eutectic solvents (DESs) and analyzes the effects of hydrogen-bonding donor, hydrogen-bonding acceptor, mole ratio, and temperature. The results show that these factors have a significant impact on the refractive index, and the presence of water decreases the refractive index of all DESs studied.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Plant Sciences
Lisetta Ghiselli, Lorenzo Marini, Cosimo Taiti, Luca Calamai, Donatella Paffetti, Elisa Masi
Summary: Wild hops in Northern and Central Italy have attracted interest due to their potential use in beer production and herbal/pharmaceutical purposes. This study compared the chemical composition of 14 wild hops with 2 commercial varieties and found that wild hops are more suitable for aroma beer production and may have potential in the herbal and pharmaceutical industries due to their antioxidant content.
Article
Green & Sustainable Science & Technology
Jun Cao, Erzheng Su
Summary: The discovery of hydrophobic deep eutectic solvents (HDESs) with good solvation abilities has expanded their application scope. HDESs show promising applications in fields such as food safety, environmental protection, biocatalysis, energy utilization, material modification, and pharmaceuticals.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Chemistry, Physical
Shaina Joarder, Divyam Bansal, Harshvardhan Meena, Neha Kaushik, Jaya Tomar, Kamlesh Kumari, Indra Bahadur, Eun Ha Choi, Nagendra Kumar Kaushik, Prashant Singh
Summary: In the past decade, deep eutectic solvents (DESs) have been widely used as green solvents due to their advantages over traditional organic solvents and ionic liquids. DESs have been applied in various fields such as biotechnology, nanotechnology, synthesis, and catalysis. However, there is still uncertainty about their toxicity and conflicting reports on their biocompatibility. This review focuses on the catalytic potential of DESs and discusses their biocompatibility on different organisms.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Willyan Araujo da Costa, Vanessa Freire de Franca, Layanny Samara da Silva Souza, Adrielly Silva Albuquerque de Andrade, Demetrius Antonio Machado de Araujo, Edilene Dantas Teles Moreira, Liliana Fatima Bezerra Lira Pontes
Summary: The search for new analytical methods in green analytical chemistry aims to address environmental issues. Green solvents, particularly deep eutectic solvents (DESs), have been identified as promising substitutes for dangerous organic solvents. This study investigated the physical-chemical and ecotoxicological properties of seven different DESs and found that their properties are influenced by the chemical structure of their precursors. These findings provide new insights into the conscious usage of DESs in green analytical chemistry.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Mingli Mu, Xinfeng Zhang, Gangqiang Yu, Ruinian Xu, Ning Liu, Ning Wang, Biaohua Chen, Chengna Dai
Summary: The efficient treatment of dichloromethane (DCM) is important for environmental protection and human health. This study proposes and investigates the strategy of capturing DCM using deep eutectic solvents (DESs) with different hydrogen bond acceptors (HBAs) and hydrogen bond donors (HBDs). The results show that tetrabutylphosphonium chloride: levulinic acid ([P-4444][Cl]-LEV) has the highest DCM absorption capacity among all DESs studied, and the interaction energy between DES and DCM plays a crucial role in the saturated absorption capacity of DCM.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Mohamed Adel Sayed, Sayed A. Ahmed, Sarah I. I. Othman, Ahmed A. A. Allam, Wail Al Zoubi, Jamaan S. S. Ajarem, Mostafa R. R. Abukhadra, Stefano Bellucci
Summary: Egyptian kaolinite was used to synthesize zeolite-A by conventional hydrothermal and alkali fusion methods, resulting in two forms of zeolite-A: hydrated phase (H.ZA) and dehydrated phase (DH.ZA). DH.ZA phase exhibited enhanced catalytic activity, achieving a biodiesel yield of 96.8% after 60 min at 60 degrees C, while H.ZA phase resulted in a yield of 95.8% after 120 min at 80 degrees C.
Article
Chemistry, Analytical
Maymounah N. Alharthi, Iqbal Ismail, Stefano Bellucci, Mariusz Jaremko, Salah E. M. Abo-Aba, Mohamed Abdel Salam
Summary: The green biosynthesis of zinc oxide nanoparticles (GBS ZnO NPs) using Ziziphus jujuba leaves extract assisted by ultrasonic irradiation was reported. The biosynthesized ZnO NPs were characterized as hexagonal wurtzite crystal with an average size of 90 +/- 10 nm. They showed effective antibacterial activities against S. aureus and E. coli bacteria and outstanding cytotoxic effects on human colon cancer cell lines (HCT-116) and human liver cancer cell lines (HepG2). The cytotoxicity mechanism was enhanced by generating ROS and inducing apoptosis in the cells.
Correction
Physics, Particles & Fields
Gianni Albertini, Fabio Cardone, Stefano Bellucci
ADVANCES IN HIGH ENERGY PHYSICS
(2023)
Article
Chemistry, Physical
Mohamed Adel Sayed, Jamaan S. Ajarem, Ahmed A. Allam, Mostafa R. Abukhadra, Jianmin Luo, Chuanyi Wang, Stefano Bellucci
Summary: The mineral raw Egyptian kaolinite was used as a precursor to synthesize two sodalite phases (Na.SD and K.SD) through low alkali fusion technique. Na.SD phase exhibited higher basicity, surface area, and ion exchange capacity compared to K.SD phase. Catalytic performance of Na.SD was superior to K.SD in biodiesel production, demonstrating higher yields and faster reaction rates.
Article
Geochemistry & Geophysics
Hassan Ahmed Rudayni, Malak Aladwani, Lina M. Alneghery, Ahmed A. Allam, Mostafa R. Abukhadra, Stefano Bellucci
Summary: The kaolinite sheets were delaminated into nanotubes (KNs) through sonication-induced chemical processes. These KNs were used as substrates for ZnO nanoparticles (ZnO/KNs) synthesized through microwave-based techniques. Compared to separate ZnO and KNs phases, as well as commercially used ZnO, the ZnO/KNs structure exhibited enhanced antioxidant and antidiabetic properties due to the positive influence of KNs on surface area, interfaces, charge separation, and agglomeration properties. It demonstrated remarkable scavenging efficiencies for various radicals and strong inhibition effects on enzymes related to diabetes. The antidiabetic activity of ZnO/KNs was comparable to or slightly higher than acarbose, making it a recommended alternative to commercially used drugs.
Article
Materials Science, Composites
Pushpalatha Rajendran, Ramadevi Rathinasabapathy, Somasundaram Chandra Kishore, Stefano Bellucci
Summary: This research focuses on obtaining the behavior of chemical compounds in terms of their molecular weight and optimization energy, based on the variation in properties in organic carbon links. The analysis of compound behavior is used in the application of a metal organic framework to denote high-grade compounds. The stability of the material is depicted by the essential measure of optimization energy and molecular weight.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Engineering, Biomedical
Hassan Ahmed Rudayni, Marwa H. Shemy, Malak Aladwani, Lina M. Alneghery, Gasem M. Abu-Taweel, Ahmed A. Allam, Mostafa R. Abukhadra, Stefano Bellucci
Summary: Green ZnO-decorated acid-activated bentonite-mediated curcumin extract (ZnO@CU/BE) is a multifunctional antioxidant and antidiabetic agent prepared using curcumin extract as a reducing and capping reagent. ZnO@CU/BE exhibits enhanced antioxidant properties and potent inhibition effects on enzymes related to diabetes. The structure shows potential as an antioxidant and antidiabetic agent.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Stefano Bellucci, Hassan Ahmed Rudayni, Marwa. H. H. Shemy, Malak Aladwani, Lina. M. M. Alneghery, Ahmed. A. A. Allam, Mostafa. R. R. Abukhadra
Summary: A green zinc-metal-pillared bentonite mediated curcumin extract (Zn@CN/BE) was synthesized as an enhanced antioxidant and antidiabetic agent with remarkable activities. The structure exhibited higher antioxidant and inhibition activities compared to individual components and commercial drugs. The enhancement effect was attributed to the zinc pillaring process, which improved the stability, dispersion, and solubility of the active compounds.
Article
Biochemistry & Molecular Biology
Mashael D. Alqahtani, May N. Bin Jumah, Abdulrahman Al-Hashimi, Ahmed A. Allam, Mostafa R. Abukhadra, Stefano Bellucci
Summary: In this study, natural bentonite clay was modified to enhance its drug loading capabilities for 5-fluorouracil. The modification process involved exfoliation of the clay into nanosheets and further functionalization with methanol. The modified carrier (Mth/EXBE) showed higher loading site density and faster drug release compared to the raw clay. Additionally, the cytotoxicity of 5-fluorouracil was significantly enhanced by the modified carriers.
Article
Biochemistry & Molecular Biology
Mashael Daghash Alqahtani, Nourhan Nasser, May N. N. Bin Jumah, Saleha A. A. AlZahrani, Ahmed A. A. Allam, Mostafa R. R. Abukhadra, Stefano Bellucci
Summary: Natural kaolinite can be modified into separated single nanosheets (KNs) and scrolled nanoparticles as nanotubes (KNTs). The synthetic nanostructures show advanced oxaliplatin-medication (OXAP) delivery systems. The loading capacity of KNs and KNTs is significantly increased compared to raw kaolinite, and they exhibit classic kinetic and isotherm behaviors. The release of OXAP from KNs and KNTs shows continuous and regulated profiles, with KNTs demonstrating faster release. The cytotoxicity of the synthesized structures is significantly enhanced on cancer cell lines, and they greatly increase the cytotoxicity of OXAP.
Article
Chemistry, Physical
Francesca Limosani, Francesca Tessore, Alessandra Forni, Angelo Lembo, Gabriele Di Carlo, Cecilia Albanese, Stefano Bellucci, Pietro Tagliatesta
Summary: In this study, the second order nonlinear optical (NLO) response of new hybrids with two-dimensional graphene nanoplates (GNP) as the acceptor unit was investigated. The experimental data and calculations indicate that the extended π-conjugation of the carbonaceous acceptor moiety enhances the contribution of the cubic electronic term γ(-2ω; ω,ω,0).
Article
Green & Sustainable Science & Technology
Abdelbaset M. Abudeif, Gamal Abdel Z. Aal, Hatem S. Ramadan, Nassir Al-Arifi, Stefano Bellucci, Khamis K. Mansour, Hossameldeen A. Gaber, Mohammed A. Mohammed
Summary: Due to new discoveries, there is an increased opportunity for development and investment in the Al-Arraba EL-Madfuna region of Abydos, Sohag Governorate, Egypt, which will benefit tourism and boost the national economy. The primary objective of this work is to prospect for potential archaeological features in this site, including the vanished Coptic monastery and tombs, using ground magnetic and ground-penetration radar surveys.
Review
Multidisciplinary Sciences
Stefano Bellucci, Fabio Cardone, Fabio Pistella
Summary: The purpose of this paper is to provide a comprehensive analysis of experimental results in the field of non-conventional phenomena in nuclear matter, aiming to obtain a consistent interpretation of the accumulated data. The paper adopts a comprehensive and integral approach, analyzing different experimental layouts and results to identify common features and logical classifications. The paper also emphasizes the issue of reproducibility in experiments and explores the reasons for its limitation.
Article
Chemistry, Multidisciplinary
Talia Tene, Paola G. Vinueza-Naranjo, Yesenia Cevallos, Fabian Arias Arias, Matteo La Pietra, Andrea Scarcello, Yolenny Cruz Salazar, Melvin Arias Polanco, Salvatore Straface, Cristian Vacacela Gomez, Lorenzo S. Caputi, Stefano Bellucci
Summary: This study investigates the influence of changing important synthesis-related parameters on the optical characteristics of graphene oxide (GO) and reduced graphene oxide (rGO). The impact of drying time and reduction time at two different temperatures on optical transitions, optical bandgap, absorption coefficient, and absorbance spectrum width is analyzed. GO has a bandgap of approximately 4 eV, which is reduced to 1.9 eV through the reduction process. Both GO and rGO exhibit enhanced absorption in the visible spectrum, leading to improved photon capture and increased efficiency in energy conversion applications. The higher absorption coefficients of GO and rGO are attributed to defects and functional oxygen groups. Spectroscopic and morphological studies provide further support for these findings.
Proceedings Paper
Construction & Building Technology
Vincenzo Fioriti, Antonino Cataldo, Ivan Roselli, Alessandro Colucci, Paolo Clemente, Miriam Lamonaca, Luigi Sorrentino
Summary: A preliminary characterization of the input vibrations and dynamic behavior of the Sarcophagus of the Spouses was conducted using advanced digital video analyses. The study aims to develop a protection system to minimize potential damage from traffic and earthquakes. Non-contact video-based techniques, specifically high-speed and high-resolution cameras, were used to analyze the vibrations induced by roads, tramways, and an underground train line. The video footage was analyzed using advanced algorithms, allowing for a preliminary estimation of the Sarcophagus' dynamic characteristics and the optimization of the base-isolation system design.
SEISMIC ISOLATION, ENERGY DISSIPATION AND ACTIVE VIBRATION CONTROL OF STRUCTURES, 17WCSI 2022
(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)
