Article
Chemistry, Multidisciplinary
Kuang-Jung Hsu, Luis Francisco Villalobos, Shiqi Huang, Heng-Yu Chi, Mostapha Dakhchoune, Wan-Chi Lee, Guangwei He, Mounir Mensi, Kumar Varoon Agrawal
Summary: Predictable and tunable etching of angstrom-scale nanopores in single-layer graphene is achieved through the development of two etching regimes, resulting in high-performance nanoporous SLG membranes for efficient gas separation. The etching strategy demonstrates uniformity and scalability, leading to the successful fabrication of high-performance centimeter-scale membranes.
Article
Chemistry, Physical
Jieyan Yuan, Xin Zhou, Shujuan Dong, Jianing Jiang, Longhui Deng, Wenjia Song, Donald B. Dingwell, Xueqiang Cao
Summary: The research on the effects of novel dopants Ta2O5 and Y2O3 on ceramic systems has led to the discovery of new compounds Hf6Ta2O17 and stabilized HfO2 with 18 mol% YO1.5 (YSH). It has been found that cubic YSH ceramics exhibit enhanced phase stability and mechanical properties at high temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xueliang Wang, Yong Liu, Xin Wang, Yaping Wang, Tao Lai, Guofu Ren
Summary: This study successfully tuned the CTE behavior of copper matrix composites filled with multilayer graphene by tailoring the interfacial curvature, making it a promising candidate for thermal management of electronic packaging systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jian Ma, Jian Li, Penglei Guo, Shengyang Pang, Chenglong Hu, Rida Zhao, Sufang Tang, Hui-Ming Cheng
Summary: This study investigates the microstructure evolution of carbon fiber reinforced carbon aerogel-like matrix composites and its influence on their properties. The results show that the carbonization temperature affects the volume shrinkage, micropore amount, particle size, and microstructure of the composites. The resulting composites exhibit higher compressive strengths and low thermal conductivity compared to other reported carbon foams or aerogels with similar bulk densities. The increase in strength and modulus with carbonization temperature is attributed to reduced tensile stress, improved particle packing compactness, larger microcrystallite size, and less residual organo-functional groups.
Review
Materials Science, Multidisciplinary
Amirhossein Pakseresht, Fariborz Sharifianjazi, Amirhossein Esmaeilkhanian, Leila Bazli, Mehdi Reisi Nafchi, Milad Bazli, Kamalan Kirubaharan
Summary: This article provides an overview of the factors influencing the durability of thermal barrier coatings and discusses approaches to mitigate the adverse effects of degradation mechanisms. It also reviews new ceramic materials as potential candidates for thermal barrier coating applications, considering their thermal properties and corrosion resistance characteristics.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Ceramics
Qi Shao, Yongqiang Qiao, Xi Zhen, Juan Guo, Mingju Chao, Erjun Liang, Qilong Gao
Summary: In this work, a series of Cu2-xMnxP2O7 (0 ≤ x ≤ 2) compounds were synthesized by solid state reaction method, and their crystal structure underwent three changes from α-Cu2P2O7 to β-Cu2P2O7 and then to Mn2P2O7 structure. The thermal expansion in Cu2-xMnxP2O7 is gradually regulated from strong negative to near zero, and then to positive with increasing Mn content. First-principles calculation showed that the Mn substitution diminishes structural flexibility and depresses the NTE of Cu2-xMnxP2O7 (0 ≤ x ≤ 2). This study not only achieves controlled thermal expansion, but also deepens the understanding of the correlation between structure and properties of frame-structured negative thermal expansion compounds.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Fangsheng Wu, Xiao Jin, Zhou Guan, Jiaping Lin, Chunhua Cai, Liquan Wang, Yongsheng Li, Shaoliang Lin, Pengfei Xu, Liang Gao
Summary: The study reports a novel phenomenon of nanopore formation achieved through the insertion of polymeric nanotoroids into cellular membranes. Experimental confirmation of this unique biophysical phenomenon and the deepening of understanding on membrane nanopore phenomenon may assist in the design of advanced pore-forming materials.
Article
Engineering, Chemical
Minseong Lee, Gihoon Lee, Yanghwan Jeong, Woong-Jin Oh, Jeong-gu Yeo, Jung Hyun Lee, Jungkyu Choi
Summary: By studying the correlation between membrane and feed stream properties, the researchers proposed critical parameters to describe the representative module properties of the recovery, purity, and process efficiency of CO2. They also found that the process efficiency of the membrane unit was improved in a double-stage configuration, with noticeable improvements in CO2 purity and process efficiency, at a slight expense of CO2 recovery.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Shovan Dan, S. Mukherjee, R. Ranganathan, Chandan Mazumdar
Summary: The article explores the thermal expansion properties of diluted PbTiO3 (PT) based ceramic compounds, aiming to achieve very low thermal expansion coefficient by substituting elements at specific sites. Through selecting substitutional elements with appropriate proportions, materials with very low thermal expansion operating over a wide temperature range have been successfully developed. Additionally, an effective method to determine the operative temperature region of their performance has been demonstrated without actual dilatometric experiments.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Ceramics
Xuanyu Meng, Jie Xu, Jiatong Zhu, Jia Zhao, Mingyue Wei, Runwu Yang, Feng Gao
Summary: This study successfully fabricated LZO porous ceramics with tailored pore structures by adjusting the solid loading of the slurry. The ceramics exhibited high porosity, low thermal conductivity, and relatively high compressive strength. The ceramics with the highest porosity showed significantly lower thermal conductivity compared to counterparts, due to its unique pore structure with smaller size and better thermal insulating performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Qiao Li, Yusuke Onuki, Qingping Sun
Summary: This study explores the manipulation of macroscopic linear thermal expansion in shape memory alloys through microstructure engineering. Through a combination of modeling and experimentation, the research focuses on designing and tuning the coefficient of thermal expansion of polycrystalline martensitic SMAs based on reorientation deformation. The results show intrinsic lattice-level thermal expansion properties in martensite polycrystals, with the overall linear CTE being influenced by both intrinsic lattice properties and extrinsic reorientation-deformation textures. Additionally, ultralow in-plane CTE values were achieved through designed cross-rolling on martensitic NiTi sheets, demonstrating potential applications in various industries.
Article
Nanoscience & Nanotechnology
Ran Chen, Qilong Gao, Yongqiang Qiao, Juan Guo, Erjun Liang
Summary: Control of thermal expansion is crucial for functional materials. In this study, the thermal expansion of Ni2P2O7-based materials was controllable from negative to zero to positive by doping Mn. XRD and Raman analysis revealed that the negative thermal expansion originated from a change in phase proportion. This work provides new insight into improving the negative thermal expansion in phase transition materials.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
L. Wang, J. Li, Y. Xie, L. Hu, F. Liu, W. Ao, J. Luo, C. Zhang
Summary: In this study, a MgB2 alloying strategy was employed to enhance the mechanical and thermoelectric performance of GeTe-based alloys, while eliminating negative coefficient of thermal expansion (CTE) and enhancing compressive strength and hardness. The Mg-substitution induced delocalization of electrons and modulation of band structures were found to facilitate the transport of charge carriers, leading to improved ZT values of the samples.
MATERIALS TODAY PHYSICS
(2021)
Article
Chemistry, Physical
Qiqi Li, Yuting Jiang, Zimu Jiang, Jiayao Zhu, Xuemeng Gan, Fuwei Qin, Tingting Tang, Wanxia Luo, Nannan Guo, Zheng Liu, Luxiang Wang, Su Zhang, Dianzeng Jia, Zhuangjun Fan
Summary: This article proposes an ultrafast strategy to tailor the interconnected porous structure of activated carbon by introducing CO2, enabling the preparation of activated carbon with high volumetric performance in organic electrolyte. The optimized sample exhibits high surface area, compaction density, and shows excellent capacitance and rate performance, achieving high energy densities in symmetric supercapacitors. The ultrafast tailoring strategy holds great potential for practical applications.
Article
Chemistry, Multidisciplinary
Tim Diederichs, Katya Ahmad, Jonathan R. Burns, Quoc Hung Nguyen, Zuzanna S. Siwy, Marc Tornow, Peter Coveney, Robert Tampe, Stefan Howorka
Summary: Synthetic nanopores made from DNA can replicate biological processes of transporting molecular cargo across lipid bilayers. Through experiments and computer simulations, the transport principles of organic molecules through DNA nanopores have been revealed, showing high structural homogeneity and potential for tailored transport selectivity for various biotechnological applications. The findings highlight the impact of cargo charge and size, pore sterics and electrostatics, and lipid bilayer composition on the transport kinetics within the nanopores.
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)