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Reactive mesoporous silica nanoparticles loaded with limonene for improving physical and mental health of mice at simulated microgravity condition

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Bioactive Materials 2020年第4期5卷 1127-1137页

作者： Zhiguo Lu Jianze Wang Lina Qu Guanghan Kan Tianlu Zhang Jie Shen Yan Li Jun Yang Yunwei Niu Zuobing Xiao Yinghui Li Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China State Key Laboratory of Space Medicine Fundamentals and Application China Astronaut Research and Training CenterBeijing100094China School of Chemical Engineering University of Chinese Academy of SciencesBeijing100049PR China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai200232PR China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai200233PR China

Astronauts are under high stress for a long time because of the microgravity condition,which leads to anxiety,affects their learning and memory abilities,and seriously impairs the health of *** can improve the physical and mental health of astronauts in a way that moisturizes them softly and ***,the strong volatility of fragrances and inconvenience of aroma treatment greatly limit their application in the field of *** this study,reactive mesoporous silica nanoparticles were prepared to encapsulate and slowly release *** limonene loaded nanoparticles were named limonene@mesoporous silica nanoparticles-cyanuric chloride(LE@MSNs-CYC).LE@MSNs-CYC were then applied to wallpaper to improve the convenience of ***@MSNs-CYC could chemically react with the wallpaper,thus firmly adsorbed on the *** the following,the mice were treated with hindlimb unloading(HU)to simulate a microgravity *** results showed that 28-day HU led to an increase in the level of anxiety and declines in learning,memory,and physical health in ***@MSNs-CYC showed significant relief effects on anxiety,learning,memory,and physical health of HU treated ***,the molecular mechanisms were explored by hypothalamic-pituitary-adrenal axis related hormones,immune-related cytokines,learning,and memory-related neurotransmitters and proteins.

关键词： Reactive mesoporous silica nanoparticles Slow release of limonene Simulated microgravity condition Improvement of physical health Improvement of mental health

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Lithium Extraction from High Magnesium Salt Lake Brine with an Integrated Membrane Technology

SSRN

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SSRN 2022年

作者： Ashraf, Muhammad Awais Usman, Muhammad Hussain, Iftikhar Ahmad, Faraz Guo, Shiwei Zhang, Lu State Key Laboratory of Multiphase Complex Systems CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 PR China University of Chinese Academy of Sciences Beijing100049 China Washington State University United States Department of Mechanical Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong Key Laboratory of Coal Science and Technology Taiyuan University of Technology Taiyuan030024 China North China Electric Power University Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering Baoding071000 China Faculty of Economics and Business

Lithium extraction is a great challenge from the high magnesium content salt solution. In this work, an integrated polyamide tight ultrafiltration (UF) and nanofiltration (NF) membranes are systematically investigated to separate Li+ from a high magnesium salt solution. Tight ultrafiltration UA001 and nanofiltration NF270 membranes in the integrated-cascade system not only increased Li+ permeation to 82.5% but also enhanced the high Mg2+ retention to 94.6% from the ternary salt solution of LiCl and MgCl2. The transport model was also developed to calculate the real retention of Li+ and Mg2+, under constant pressure mode. The separation efficiency SFLi/Mg for the ternary salt solution of LiCl+MgCl2+H2O was more than 15 at a constant pressure of 25 bars with an integrated membrane process, which was higher as compared to single-stage UF and NF270 membranes. Moreover, the high Mg2+/Li+ ratio was also reduced from 30 to 1.9 in the integrated-cascade membrane process. © 2022, The Authors. All rights reserved.

关键词： Magnesium compounds

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Comprehensive index prediction of effluent quality and environmental impact for A 2 O-MBR process

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Separation and Purification Technology 2025年 376卷

作者： Yuting Wang Yanyan Hu Jiaqing Wang Zhongqiang Wang Jie Zhang Weichao Xu Zhi Sun Guangming Zhang Wenfang Gao School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 China National Key Laboratory of Biochemical Engineering Beijing Engineering Research Centre of Process Pollution Control Institute of Process Engineering Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing 100190 China

The machine learning (ML) as an indispensable tool has attracted widespread attention in domestic wastewater treatment processes. However, ML have not been widely utilized in comprehensive prediction of effluent quality and comprehensive environmental impact. In this research, under six ML models, 360 samples were collected to predict effluent quality and comprehensive environmental assessment (CEA) for anaerobic-anoxic-oxic-membrane bioreactor (A 2 O-MBR) domestic wastewater treatment process. The typical industrial scenario analysis indicated that the environmental impact could be decreased under the hydraulic retention time of 4–10 h, and nitrox reflux ratio in 50 %-200 %, when the influent total phosphorus in 1–2 mg/L, influent chemical oxygen demand in 100–120 mg/L, influent ammonium in 10–18 mg/L. Meanwhile, a comprehensive index prediction model was developed, demonstrating that the extreme gradient boosting model has better fitting performance coefficient of determination with 0.8053. This research offers the foundation for the efficient and stable operation and environmental impacts of the wastewater treatment process.

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Direct reduction of iron-ore with hydrogen in fluidized beds: A coarse-grained CFD-DEM-IBM study

arXiv

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arXiv 2023年

作者： Lan, Bin Xu, Ji Lu, Shuai Liu, Yige Xu, Fan Zhao, Bidan Zou, Zheng Zhai, Ming Wang, Junwu School of Energy Science and Engineering Harbin Institute of Technology Harbin150001 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences P. O. Box 353 Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

Hydrogen metallurgy technology uses hydrogen as the reducing agent instead of carbon reduction, which is one of the important ways to reduce carbon dioxide emissions and ensure the green and sustainable development of iron and steel industry. Due to the advantages of high gas-solid contact efficiency and outstanding mass and heat transfer, direct reduction of iron ore in fluidized beds has attracted much attention. In this study, a coarse-grained CFD-DEM-IBM solver based on hybrid CPU-GPU computing is developed to simulate the direct reduction process of two kinds of iron ore with hydrogen in fluidized beds, where an unreacted shrinking core model based on multiple reaction paths is used to model the reduction reactions, a coarse-grained model and multiple GPUs enable the significant acceleration of particle computation, and the immersed boundary method (IBM) enables the use of simple mesh even in complex geometries of reactors. The predicted results of particle reduction degree are in good agreement with the experimental values, which proves the correctness of the CFD-DEM-IBM solver. In addition, the effects of reaction kinetic parameters and operating temperature on particle reduction degree are also investigated. Present study provides a method for digital design, optimization and scale-up of ironmaking reactors. Copyright © 2023, The Authors. All rights reserved.

关键词： Iron ores

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Poisoning mechanism of Ti 0.8 Zr 0.2 Cr 0.75 Mn 1.25 Ce 0.02 hydrogen storage alloy by trace H 2 S, CO, and CH 4

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green Chemical engineering 2025年

作者： Tianmeng He Xiaoyi Xue Ke Wang Honghua Zhang Ao Li Yajie Zhang He Zhang Hao Wang Yanrong Liua Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial Technology Henan University Zhengzhou 450000 China Energy Engineering Division of Energy Science Luleå University of Technology Luleå 97187 Sweden CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Beijing Key Laboratory of Solid State Battery and Energy Storage Process Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 China

TiMn 2 -based alloys hold significant application potential due to their moderate hydrogen storage operating conditions and exceptional volumetric hydrogen storage density. Industrial by-product hydrogen, which is widely available and relatively cheap, often contains components such as H 2 S, CO, and CH 4 , whose poisoning mechanism on TiMn 2 -based alloys in the process of hydrogen absorption and desorption remains to be elucidated. In this work, the poisoning mechanisms of H 2 S, CO, and CH 4 on Ti 0.8 Zr 0.2 Cr 0.75 Mn 1.25 Ce 0.01 hydrogen storage alloy were investigated by isothermal adsorption curve, X-ray photoelectron spectroscopy (XPS), and scanning electron microscope-energy dispersive spectroscopy (SEM-EDS). The results show that the toxicity of impurity gases on the alloy is CO > H 2 S > CH 4 , and the regeneration difficulty is H 2 S > CO > CH 4 . The hydrogen absorption of the Ti 0.8 Zr 0.2 Cr 0.75 Mn 1.25 Ce 0.02 alloy was restored to 58% after five groups of H 2 S poisoning-regeneration cycles. The hydrogen storage capacity retention rate decreased to 4.03% after five groups of CO poisoning, but the alloy recovered to 96.62% of the hydrogen absorption capacity after regeneration with pure hydrogen. The retention rate of the alloy was 100% after 100 cycles of CH 4 poisoning. According to the results of XPS analysis, two metal sulfides (TiS and ZrS 2 ) and one metal sulfate Zr(SO 4 ) 2 were formed after the Ti 0.8 Zr 0.2 Cr 0.75 Mn 1.25 Ce 0.02 alloy was poisoned by H 2 S. Therefore, H 2 S poisoning belongs to irreversible adsorption and CO belongs to reversible adsorption. The poisoning mechanism may guide the design of alloys for the absorption/desorption of industrial by-product hydrogen.

关键词： TiMn 2 -based hydrogen storage Alloys Poisoning mechanism Hydrogen Storage performance Impurity gas source

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Efficient and selective oxidative coupling of methane over a Na 3 PO 4 /Mn 2 O 3 -TiO 2 catalyst via lattice oxygen looping

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Fuel 2025年 402卷

作者： Tian Lan Zhongchen Ma Wenli Gu Yong Lu State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China Institute of Eco-Chongming Shanghai 202162 China

A promising oxygen-carrier catalyst of Na 3 PO 4 /Mn 2 O 3 -TiO 2 was developed for the chemical looping-oxidative coupling of methane (CL-OCM) process by facile impregnation of a Mn 2 O 3 -TiO 2 mixture with Na 3 PO 4 . A volcano-shaped evolution of C 2 selectivity against the mass content of Na 3 PO 4 ( x = 0.3∼9.6, wt%) was observed in the x Na 3 PO 4 /2Mn 2 O 3 -1TiO 2 (2Mn 2 O 3 -1TiO 2 , Mn 2 O 3 /TiO 2 mass ratio of 2/1) catalysts. The oxygen consumption rate via the ‘Mn 2 O 3 + TiO 2 → MnTiO 3 + O’ was dependent on the content of Na 3 PO 4 . An optimum Na 3 PO 4 content of 0.6 wt% was identified, which demonstrated the ability to suppress the excessive oxidation of methane and C 2 products due to the lower surface oxygen potential. The 0.6 Na 3 PO 4 /2Mn 2 O 3 -1TiO 2 was always highly selective over the whole temperature range (720 to 800 °C) with C 2 yields ranging from 5.1% to 18.2%, for example, achieving 87.9% (or 75.8%) C 2 selectivity with 5.8% (or 24.0%) CH 4 conversion at 720 °C (or 800 °C) and a low catalyst/CH 4 weight ratio of 13.5. Note that a high ethylene selectivity of > 54% could be achieved. As experimentally and theoretically revealed, a suitable amount of Na 3 PO 4 enabled the reaction of PO 4 3− with surface Mn 2+ ions to form an appropriate amount of Mn 2 P 2 O 7 , effectively shielding the sites conducive to deep oxidation, while stabilizing the Na + ions preventing their reaction with TiO 2 to form Na 2 Ti 9 O 19 (consuming a large amount of TiO 2 ). As a result, a shift of the redox cycle from ‘Mn 2 O 3 + TiO 2 ↔ MnTiO 3 + O’ to ‘Mn 2 O 3 ↔ Mn 3 O 4 + O’, which would result in a marked deterioration of the CL-OCM performance, was avoided.

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The effects of halide anions on the electroreduction of CO2 to C2H4: a density functional theory study

arXiv

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arXiv 2021年

作者： Ma, Xifei Xing, Lu Yao, Xiaoqian Zhang, Xiangping Liu, Lei Zhang, Suojiang Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex Systems CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Science School of Chemical Engineering Beijing100049 China Dalian National Laboratory for Clean Energy Dalian116023 China School of Chemistry and Chemical Engineering Wuhan Textile University Wuhan430200 China

The halide anions present in the electrolyte gradually improves the Faradaic efficiencies (FEs) of the multi-hydrocarbon (C2+) products for the electrochemical reduction of CO2 over copper (Cu) catalysts in the order of F- - - -. However, the mechanism behind the increased yield of C2+ products with the addition of halide anions still remains indistinct. In this study, we analysed the mechanism by investigating the electronic structures and computing the relative free energies of intermediates formed from CO2 to C2H4 on the Cu (100) facet based on density functional theory (DFT) calculations. The results show that formyl *CHO species from the hydrogenation reaction of the adsorbed *CO acts as the key intermediate, and the C-C coupling reaction occurs preferentially between the *CHO and *CO with the formation of a *CHO-CO intermediate. Subsequently, the free-energy pathway of C2H4 formation has been proposed, and we found that the presence of halide anions significantly decreases the free energy of the *CHOCH intermediate, and enhances the desorption capacity of C2H4 in the order of F- - - -. Lastly, the obtained results are rationalized by the Bader charge analysis. © 2021, CC BY.

关键词： Electrolytic reduction

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Iron oxide-supported InNi 3 C 0.5 intermetallic catalyst for the CO 2 hydrogenation to methanol: Effect of pyrolyzed Fe 2 O 3 support precursors

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Journal of Colloid and Interface Science 2025年 699卷

作者： Wenli Gu Hao Wang Tian Lan Zhongchen Ma Guoqing Chen Yong Lu State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China Institute of Eco-Chongming Shanghai 202162 China

Interest in renewable methanol produced from green hydrogen and CO 2 has given particular momentum to the exploration of efficient catalysts. Although the newly developed InNi 3 C 0.5 /Fe 3 O 4 catalyst, derived from the In 2 O 3 -NiO/α-Fe 2 O 3 system, shows significant potential as a catalyst for the CO 2 hydrogenation to methanol reaction, a comprehensive understanding of the chemical and structural origins that are inherently linked to catalyst synthesis is still insufficient. Herein, the study is focused on the effect of α-Fe 2 O 3 precursors on catalyst performance of as-obtained InNi 3 C 0.5 /Fe 3 O 4 . A series of α-Fe 2 O 3 oxides obtained by directly pyrolyzing 6 routine ferric/ferrous organic acid salts, were used as support precursors for InNi 3 C 0.5 /Fe 3 O 4 catalyst preparation by the impregnation/carburation method. With no exception, the InNi 3 C 0.5 /Fe 3 O 4 could be well formed in all cases while showing strong dependence of catalytic performance on their support source. The catalyst obtained by using the α-Fe 2 O 3 pyrolyzed from (NH 4 ) 3 Fe(C 2 O 4 ) 3 ·3H 2 O came out on top, achieving 12.6% CO 2 conversion and 90.5% methanol selectivity for a feed gas of H 2 /CO 2 = 5/1, at 260 °C, 4.0 MPa and 12,000 mL g cat −1 h −1 . The others showed either low activity or poor selectivity (especially with CH 4 formation). Additional research reveals that the oxygen deficiency in the catalysts prepared through direct pyrolysis of organic acid salts exhibits variations. Concurrently, experimental data indicates a positive correlation between the oxygen deficiency and the strength of the electronic metal-support interaction (EMSI) in these catalysts. Moreover, this approach would be a cleaner way to obtain a qualified InNi 3 C 0.5 /Fe 3 O 4 catalyst, compared to the precipitation method previously used for α-Fe 2 O 3 preparation from iron nitrates with discharge of a large amount of high concentration nitrogen-containing wastewater.

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2D binary transition metal iodides: Advances in synthesis and device applications

Nano Trends

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Nano Trends 2025年 10卷

作者： Kindikah, Ishaya Nnyia, Mary Otuosorochukwu Daniel, Samuel Odebiyi, Oluwasegun Samuel Iliya, Milka CAS Key Laboratory of Standardization and Measurement for Nanotechnology National Center for Nanoscience and Technology Beijing 100190 China Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100190 China National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Department of Public Administration Gombe State University Gombe Nigeria

A subclass of 2D metal halides referred here as binary transition metal iodide of a form MX2 and MX3 (M = transition metal X = iodide) possess electronic, optical and magnetic properties due to their layered structure... 详细信息

A subclass of 2D metal halides referred here as binary transition metal iodide of a form MX₂ and MX₃ (M = transition metal X = iodide) possess electronic, optical and magnetic properties due to their layered structure. In this review, we emphasize the distinct characteristics of BTMIs—such as their tunable bandgaps, multifaceted magnetic behavior, and potential for heterostructure integration—that differentiate them from other 2D materials. This work also provides a detailed comparative analysis of synthesis techniques and device performances, thereby narrowing the scope of previous reviews and offering clear guidance for future research. We systematically examine synthesis methods—including exfoliation, solution-based techniques, and vapor deposition—and evaluate the performance of BTMIs in photodetectors, field-effect transistors, flexible devices, and magnetic applications. Finally, we discuss current challenges, limitations, and prospects for the future development of this promising class of 2D materials. © 2025 The Author(s)

关键词： Devices Layered material Metal halides Transition metal iodides Two-dimensional material

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Cartesian grid simulation of reacting gas-solid flow using CFD-DEM-IBM method

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Powder Technology 2022年 407卷

作者： Zhao, Peng Xu, Ji Zhao, Bidan Li, Dandan Wang, Junwu State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences P.O. Box 353 Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

The computational fluid dynamics-discrete element-immersed boundary method (CFD-DEM-IBM method) is extended to simulate the decomposition of ozone in a cylindrical bubbling fluidized bed, where the effect of complex geometries on the fluid flow is imposed by immersed boundary method. The expanded bed height and the global circulation patterns obtained from CFD-DEM-IBM simulations are in a good agreement with the results reported in literatures. The effects of inlet gas velocity and static bed height on the ozone conversion are also investigated, and the simulation results are consistent with the experimental data of Fryer and Potter (Fryer and Potter, 1976 [1]). Present study proved the feasibility of simulation of catalytic reaction processes in fluidized beds with complex geometries using CFD-DEM-IBM method. © 2022 Elsevier B.V.

关键词： Fluidization

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