Article
Chemistry, Physical
A. Abasi, E. Sadeghi, M. Zahedifar
Summary: This study synthesized CeF3:Ni2+ and CeF3:Dy3+ nanoparticles using the hydrothermal method and investigated their shape, structure, photoluminescence, and thermoluminescence properties.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Zhuang Leng, Xinyu Wang, Weiling Yang, Xiliang Jiang, Dongmei Wang, Chun Li, Hai Lin, Fanming Zeng, Zhongmin Su
Summary: Lu3+, Tb3+: CeF3 nanoparticles were successfully prepared via the hydrothermal method, exhibiting green emission after being doped with Tb3+ ions. The luminous intensity increases with Lu3+ doping concentration, and the magnetic susceptibility is 0.1310 emu/g under a magnetic field of 10,000 Oe. These results suggest the nanoparticles can be widely used in various fields, providing a theoretical basis for combining luminescent and magnetic properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Qiaomu Yang, Yusen Qiao, Alex McSkimming, Liane M. Moreau, Thibault Cheisson, Corwin H. Booth, Ekaterina Lapsheva, Patrick J. Carroll, Eric J. Schelter
Summary: In this study, it was found that the anion H(2)A(-) can stabilize Ce(IV) and form a tridentate complex with cerium, oxidizing Ce-III to Ce-IV under aerobic conditions. UV-Vis spectroscopy, DFT calculations, and X-ray absorption spectroscopy were used to characterize the electronic structure and oxidation state of the cerium complexes. Despite the lack of clear electrochemical signal for cerium reduction, DFT calculations predicted a Ce(iii/iv) redox couple of -1.22 V vs. Fc/Fc(+). These results expand the understanding of the coordination chemistry of glutarimide-dioxime to include tetravalent cerium.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Nan Ma, Yu Huang, Chun-Li Hu, Ming-Zhi Zhang, Bing-Xuan Li, Jiang-Gao Mao
Summary: Two new mixed-anion cerium iodates, Ce(IO3)(3)F and Ce(IO3)(2)(NO3), have been designed through integrating hybrid anionic functional building blocks. Ce(IO3)(3)F exhibits a novel [Ce(IO3)(3)F] bilayer structure with large birefringence, while Ce(IO3)(2)(NO3) features [Ce-3(IO3)(6)](3+) triple layers linked by planar NO3 - units. Ce(IO3)(2)(NO3) shows a moderate SHG response and a high laser-induced damage threshold value. This work demonstrates the tunability of structure in related compounds by modulating anionic FBBs through the rich coordination geometries of cerium cations.
INORGANIC CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
So Jeong Park, Min Hee Joo, Ju Hyun Yang, Sung-Min Hong, Choong Kyun Rhee, Jun-Gill Kang, Youngku Sohn
Summary: Understanding the electrochemical behaviors of Ce(III)/Ce(IV) ions is crucial for the treatment, separation, and recycling of lanthanide and actinide elements. This study successfully demonstrated the electrochemical redox behavior, interconversion, and recovery of Ce(III)/Ce(IV) ions using thio-terpyridine-functionalized Au-modified carbon paper electrodes, providing valuable insights for the recycling and treatment processes of Ln and An ions. The results were fully characterized using various microscopy and spectroscopy techniques, along with density functional theory calculations for the Ce(III) and Ce(IV) ion complexes with thio-terpyridine.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Valentine Camus-Genot, Jerome Lhoste, Romain Moury, Cyrille Galven, Annie Hemon-Ribaud, Sagrario Pascual, Vincent Maisonneuve, Amandine Guiet
Summary: In this paper, a novel and environmentally friendly synthetic route of monodisperse CeF3 nanoparticles with high surface area was reported. The nanoparticles were synthesized through a surfactant-free aqueous precipitation route at room temperature, with a yield of approximately 90%. The nanoparticles were used to prepare for the first time 3D interconnected macroporous CeF3 materials. The characterization of these materials at different synthesis stages was conducted using various analysis techniques. The porous structuration of CeF3 materials significantly slowed down the crystallite growth during thermal treatment under nitrogen.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Crystallography
Denis N. Karimov, Dmitry S. Lisovenko, Anna G. Ivanova, Vadim V. Grebenev, Pavel A. Popov, Natalya L. Sizova
Summary: Bulk c-oriented CeF3 single crystals were successfully grown using the vertical Bridgman technique in a fluorinating atmosphere. The anisotropy of mechanical, thermal, and electrophysical properties were studied for the first time, with maximum values observed in the [0001] direction. The Vickers and Berkovich microhardnesses for different crystallographic planes were investigated, showing higher values for Berkovich and a decrease with increasing load for the hardest plane.
Review
Chemistry, Inorganic & Nuclear
Quan-Bing Chen, Ling-Yue Zhou, Ling-Xin Shi, Yang Cheng, Kui Wu, Qiong Yuan, Zhi-Jun Dong, Hua-Zhi Gu, Xian-Zheng Zhang, Tao Zou
Summary: Many cisplatin analogs have been synthesized and used clinically, but they can cause adverse reactions and drug resistance. To address these issues, researchers are focusing on Pt(IV) complexes with unique chemical structures. Loading Pt(IV) complexes into nanoparticles can enhance targeted therapy and achieve multimodal theranostics through photosensitive activity.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Materials Science, Ceramics
Anees A. Ansari, M. A. Majeed Khan
Summary: Luminescent CeF3 and CeF3:Tb3+ nanoparticles were synthesized at a lower temperature using a wet chemical method. The introduction of Tb3+ ion into the CeF3 crystal lattice was confirmed, and the nanoparticles showed superior luminescent and optical properties. The nanomaterials have potential applications in laser-based biological events.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Tomomi Kawakami, Sota Tamaki, Satoru Shirase, Hayat o Tsurugi, Kazushi Mashima
Summary: A hexanuclear Ce(IV) cluster bridged by oxo and hydroxo groups was synthesized and found to exhibit strong absorption in the ultraviolet A to blue light region. Irradiation with blue LED light induced a chemical reaction, resulting in the formation of a new compound. This study is of great significance for understanding the properties and potential applications of this cluster.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ru-Ling Tang, Wei Xu, Xin Lian, Yue-Qi Wei, Yi-Lei Lv, Wenlong Liu, Sheng-Ping Guo
Summary: The interaction between partially reduced nano-crystallite fluorinated titanium dioxide (TiO2-x(F)) and MgH2 is studied for the first time. The study shows that the addition of fluorinated titanium can significantly decrease the desorption temperature of MgH2 and improve its dehydrogenation kinetics. Structural characterization and theoretical calculations indicate that the synergistic effect between multivalent titanium species and in situ formed MgF2 and MgF2-xHx is beneficial for improving the hydrogen storage performance of MgH2, and oxygen vacancies can accelerate the electron transportation and facilitate hydrogen diffusion.
Article
Chemistry, Physical
Dmitry Zakiryanov
Summary: This study investigates the physicochemical properties of CeF3 - FLiNaK molten mixture with different CeF3 concentrations. Classical molecular dynamics method is used to calculate density, local structure, mean ion pair lifetimes, heat capacity, self-diffusion coefficients and viscosity. Most properties are studied in the temperature range of 950-1200 K. By combining data from this study and previous ab initio simulations, the dynamics of local structure are quantitatively described. The stability of [CeFn] groupings is discussed in detail. Pair potentials for Ce3+-Ce3+ and Ce3+-F- pairs are fitted with accuracy using a two-stage algorithm.
MOLECULAR SIMULATION
(2023)
Article
Chemistry, Physical
Jacob D. Hostert, Maura R. Sepesy, Christine E. Duval, Julie N. Renner
Summary: Rare earth elements (REEs) are important in various technologies, especially in the renewable energy sector. Finding environmentally friendly and sustainable ways to recover and recycle REEs from waste is crucial. This study developed REE adsorbing polymer scaffolds by introducing poly(glycidyl methacrylate) (GMA) brushes onto porous polyvinylidene fluoride (PVDF) surface and subsequently conjugating REE-binding peptides using copper catalyzed azide alkyne cycloaddition (CuAAC) click chemistry. The functionalized polymer scaffolds showed high specificity for cerium. The conjugation strategy used in this work can be applied to other polymeric surfaces and tailored for different ions and molecules.
Article
Chemistry, Organic
Yu-Heng Wang, Qiaomu Yang, Patrick J. Walsh, Eric J. Schelter
Summary: This article describes a photochemical C(sp(3))-H oxygenation reaction of alkane and arene substrates catalyzed by [NEt4](2)[(CeCl6)-Cl-IV] under mild conditions (1 atm, 25 degrees C). The hydrocarbons are oxidized stepwise to alcohols, aldehydes, ketones, and carboxylic acids. The approach is not only applicable to alkane and arene substrates, but also capable of directly activating light alkanes such as methane and ethane.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Acoustics
Glyus L. Sharipov, Bulat M. Gareev, Kristina S. Vasilyuk, Dim I. Galimov, Airat M. Abdrakhmanov
Summary: The study revealed that the luminescence intensity of moving single-bubble sonoluminescence of Ce3+ in solutions of CeCl3 and (NH4)(2)Ce(NO3)(6) increases with the cerium ion concentration and saturates at a certain level. Additionally, sonophotoluminescence also contributes to the luminescence of Ce3+ at higher concentrations.
ULTRASONICS SONOCHEMISTRY
(2021)
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)