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Cu/TiO_(2)adsorbents modified by air plasma for adsorption-oxidation of H_(2)S

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Journal of Environmental sciences 2025年第2期148卷 476-488页

作者： Yongqi Yan Xinyu Yang Ping Ning Chi Wang Xin Sun Fei Wang Peng Gao Kai Li faculty of Environmental science and Engineering Kunming University of Science and TechnologyKunming 650500China National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries Kunming University of Science and TechnologyKunming 650500China faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China City College Kunming University of Science and TechnologyKunming 650500China

In this study,non-thermal plasma(NTP)was employed to modify the Cu/TiO_(2)adsorbent to efficiently purify H_(2)S in low-temperature and micro-oxygen *** effects of Cu loading amounts and atmospheres of NTP treatment on the adsorption-oxidation performance of the adsorbents were *** NTP modification successfully boosted the H_(2)S removal capacity to varying degrees,and the optimized adsorbent treated by air plasma(Cu/TiO_(2)-Air)attained the best H_(2)S breakthrough capacity of 113.29 mg H_(2)S/gadsorbent,which was almost 5 times higher than that of the adsorbent without NTP *** studies demonstrated that the superior performance of Cu/TiO_(2)-Air was attributed to increased mesoporous volume,more exposure of active sites(CuO)and functional groups(amino groups and hydroxyl groups),enhanced Ti-O-Cu interaction,and the favorable ratio of active oxygen ***,the X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS)results indicated the main reason for the deactivationwas the consumption of the active components(CuO)and the agglomeration of reaction products(CuS and SO_(4)^(2−))occupying the active sites on the surface and the inner pores of the adsorbents.

关键词： Non-thermal plasma(NTP) Surface modification Simultaneous adsorption-oxidation Cu/TiO_(2)(TiO_(2)loaded with copper) H_(2)S

Bioinspired smart dual-layer hydrogels system with synchronous solar and thermal radiation modulation for energy-saving all-season temperature regulation

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Journal of Energy Chemistry 2025年第2期101卷 175-190页

作者： Meng-Chen Huang Chao-Hua Xue Zhongxue Bai Jun Cheng Yong-Gang Wu Chao-Qun Ma Li Wan Long Xie Hui-Di Wang Bing-Ying Liu Xiao-Jing Guo College of Bioresources Chemical and Materials Engineering Shaanxi University of Science & Technology School of Manufacture science and Engineering Key Laboratory of Testing Technology for Manufacturing Process Ministry of Education Southwest University of Science and Technology School of life science and Engineering Southwest University of Science and Technology Northwest Institute for Nonferrous Metal Research Shaanxi Key Laboratory of Biomedical Metal Materials

All-season thermal management with zero energy consumption and emissions is more crucial to global decarbonization over traditional energy-intensive cooling/heating ***,the static single thermal management for cooling or heating fails to self-regulate the temperature in dynamic seasonal temperature ***,inspired by the dual-temperature regulation function of the fur color changes on the backs and abdomens of penguins,a smart thermal management composite hydrogel(PNA@H-PM Gel) system was subtly created though an "on-demand" dual-layer structure design *** PNA@H-PM Gel system features synchronous solar and thermal radiation modulation as well as tunable phase transition temperatures to meet the variable seasonal thermal requirements and energy-saving demands via self-adaptive radiative cooling and solar heating ***,this system demonstrates superb modulations of both the solar reflectance(ΔR=0.74) and thermal emissivity(ΔE=0.52) in response to ambient temperature changes,highlighting efficient temperature regulation with average radiative cooling and solar heating effects of 9.6℃ in summer and 6.1℃ in winter,***,compared to standard building baselines,the PNA@H-PM Gel presents a more substantial energy-saving cooling/heating potentials for energy-efficient buildings across various regions and *** novel solution,inspired by penguins in the real world,will offer a fresh approach for producing intelligent,energy-saving thermal management materials,and serve for temperature regulation under dynamic climate conditions and even throughout all seasons.

关键词： Energy-saving Radiative cooling Self-adaptive thermal management Spectral modulation Thermochromic hydrogel

Effect of Cu/HZSM-5 sorbents with different Si/Al ratios on the adsorption and oxidation performance of H_(2)S

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Journal of Environmental sciences 2025年第5期151卷 161-173页

作者： Kaini Ma Kai Li Ping Ning Jiayu Feng Jiacheng Bao Lei Shi Xiangyu Wang Xin Sun faculty of Environmental science and Engineering Kunming University of Science and TechnologyKunming 650500China National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries Kunming University of Science and TechnologyKunming 650500China

This study employed a wet impregnation method to synthesize five types of Cu/HZSM-5 adsorbents with Si/Al ratios of 25,50,85,200,and 300,used for the removal of H_(2)S in lowtemperature,low-oxygen *** impact of different Si/Al ratios on the adsorption oxidative performance of Cu_(30)/HZSM-5–85 adsorbents was *** to the performance test results,Cu_(30)/HZSM-5–85 exhibited the highest breakthrough capacity,reaching 231.75 mg H_(2)S/g_(sorbent).Cu/HZSM-5 sorbent maintains a strong ability to remove H_(2)S even under humid conditions and shows excellent water ***,BET,and XPS results revealed that CuO is the primary active species,with Cu_(30)/HZSM-5–85 having the largest surface area and highest CuO content,providing more active sites for H_(2)S adsorption.H_(2)-TPR and O_(2)-TPD results confirmed that Cu_(30)/HZSM-5–85 sorbent exhibits outstanding redox properties and oxygen storage capacity,contributing to excellent oxygen transferability in the molecular sieve adsorption-oxidation *** notable characteristics such as a large surface area,high desulfurization efficiency,and water resistance,Cu_(30)/HZSM-5–85 sorbents hold significant importance for industrial applications.

关键词： H_(2)S Si/Al ratio Adoration-oxidation Cu/HZSM-5-85(HZSM-5 with Si/Al ratio of 85 loaded Cu)

Dissolved carbon in biochar:Exploring its chemistry,iron complexing capability,toxicity in natural redox environment

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Journal of Environmental sciences 2025年第1期147卷 217-229页

作者： Chaochao Lai Juhong Zhan Qiuyun Chai Changlu Wang Xiaoxia Yang Huan He Bin Huang Xuejun Pan faculty of Environmental science and Engineering Kunming University of Science and TechnologyKunming 650500China Research Institute for Environmental Innovation(Suzhou)Tsinghua Suzhou 215163China

Dissolved black carbon(DBC)plays a crucial role in the migration and bioavailability of iron in ***,the properties of DBC releasing under diverse pyrolysis conditions and dissolving processes have not been systematically ***,the compositions of DBC released from biochar through redox processes dominated by bacteria and light were thoroughly *** was found that the DBC released from straw biochar possess more oxygen-containing functional groups and aromatic *** content of phenolic and carboxylic groups in DBC was increased under influence of microorganisms and light,*** concentration of phenolic hydroxyl groups increased from 10.0~57.5 mmol/gC to 6.6~65.2 mmol/gC,and the concentration of carboxyl groups increased from49.7~97.5 mmol/gC to 62.1~113.3 mmol/*** the impacts of DBC on pyrite dissolution andmicroalgae growth were also *** complexing Fe^(3+)was proved to play a predominant role in the dissolution of ferrous mineral in DBC *** to complexing between iron ion and DBC,the amount of dissolved Fe in aquatic water may rise as a result of elevated number of aromatic components with oxygen containing groups and low molecular weight generated under light ***-DBC complexations in solution significantly promoted microalga growth,which might be attributed to the stimulating effect of dissolved Fe on the chlorophyll *** results of study will deepen our understanding of the behavior and ultimate destiny of DBC released into an iron-rich environment under redox conditions.

关键词： Dissolved black carbon Bacteria Light Iron complexes Toxicity

Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons

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Neural Regeneration Research 2025年第6期20卷 1816-1824页

作者： Jiantao Cui Yueru Shen Zheng Song Dinggang Fan Bing Hu Center for Advanced Interdisciplinary science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina

Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular membrane. Rab5 has been reported to play an important role in the development of the zebrafish embryo;however, its role in axonal regeneration in the central nervous system remains unclear. In this study, we established a zebrafish Mauthner cell model of axonal injury using single-cell electroporation and two-photon axotomy techniques. We found that overexpression of Rab5 in single Mauthner cells promoted marked axonal regeneration and increased the number of intra-axonal transport vesicles. In contrast, treatment of zebrafish larvae with the Rab kinase inhibitor CID-1067700markedly inhibited axonal regeneration in Mauthner cells. We also found that Rab5 activated phosphatidylinositol 3-kinase(PI3K) during axonal repair of Mauthner cells and promoted the recovery of zebrafish locomotor function. Additionally, rapamycin, an inhibitor of the mechanistic target of rapamycin downstream of PI3K, markedly hindered axonal regeneration. These findings suggest that Rab5 promotes the axonal regeneration of injured zebrafish Mauthner cells by activating the PI3K signaling pathway.

关键词： axonal regeneration Mauthner cell nerve regeneration Rab5 zebrafish

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Assessing ground stability of a vertical backfilled stope considering creep behaviors of surrounding rocks

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Journal of Rock Mechanics and Geotechnical Engineering 2025年第1期17卷 187-199页

作者： Ruofan Wang Lang Liu Mengbo Zhu Huafu Qiu Bingbing Tu Huisheng Qu Hao Cui faculty of Energy Engineering Xi’an University of Science and TechnologyXi’an710054China Key Laboratory of Western Mines and Hazards Prevention Ministry of Education of ChinaXi’an710054China faculty of science Xi’an University of Science and TechnologyXi’an710054China PowerChina Huadong Engineering Corporation Limited Hangzhou311122China

Backfill is often employed in mining operations for ground support,with its positive impact on ground stability acknowledged in many underground ***,existing studies have predominantly focused only on the stress development within the backfill material,leaving the influence of stope backfilling on stress distribution in surrounding rock mass and ground stability largely ***,this paper presents numerical models in FLAC3D to investigate,for the first time,the time-dependent stress redistribution around a vertical backfilled stope and its implications on ground stability,considering the creep of surrounding rock *** the Soft Soil constitutive model,the compressibility of backfill under large pressure was *** is found that the creep deformation of rock mass exercises compression on backfill and results in a less void ratio and increased modulus for fill *** compacted backfill conversely influenced the stress distribution and ground stability of rock mass which was a combined effect of wall creep and compressibility of *** the increase of time or/and creep deformation,the minimum principal stress in the rocks surrounding the backfilled stope increased towards the pre-mining stress state,while the deviatoric stress reduces leading to an increased factor of safety and improved ground *** improvement effect of backfill on ground stability increased with the increase of mine depth and stope height,while it is also more pronounced for the narrow stope,the backfill with a smaller compression index,and the soft rocks with a smaller viscosity ***,the results emphasize the importance of minimizing empty time and backfilling extracted stope as soon as possible for ground *** of filling gap height enhances the local stability around the roof of stope.

关键词： Ground stability Time dependency Creep Surrounding rocks Backfilled stope

Post-tunable salt gel electrolytes toward flexible supercapacitor switches

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Journal of Energy Chemistry 2025年第1期100卷 114-124页

作者： Hui Wang Shuang Chen Xuming Liu Qin Zhang Xin Liu Polymeric and Soft Materials Laboratory School of Chemistry and Life Science and Advanced Institute of Materials ScienceChangchun University of TechnologyChangchun 130012JilinChina Polymeric and Soft Materials Laboratory School of Chemical Engineering and Advanced Institute of Materials ScienceChangchun University of TechnologyChangchun 130012JilinChina

Convertible hydrogel supercapacitors have emerged as promising energy storage devices in switches,diodes,and ***,inherent weaknesses in ionic conductivity,mechanical properties,and water retention of hydrogel electrolytes seriously hinder their *** by the hardness conversion of sea cucumber skin,a conductivity and mechanics dual-tunable salt gel electrolyte is successfully *** salt gel presents a reversible switching of conductors-insulators and a mechanical regulation between softness and hardness via the dissolution-crystallization transition of sodium acetate trihydrate(SAT).Meanwhile,the salt gels spontaneously grow a layer of“armor”through saturated phase-change salt crystals effectively reducing water evaporation of hydrogel ***,this phase-change soft-rigid conversion strategy will expand the capabilities of gel-based flexible supercapacitors(area capacitance:258.6 mF cm^(-2)),and the capacitance retention rate could still reach 86.9%after 3000 cycles at high ***,the salt gel supercapacitor is potentially used in over-heat alarm *** is anticipated that the strategy of conductivity and mechanics of dual-tunable salt gel would provide a new perspective on the development of energy storage devices,wearable electronics,and flexible robots.

关键词： Supercapacitors Salt gels Reversible phase transition Post-tuning Conductivity switching

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Polymer-based smart fibers and textiles for wearable electronics

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science China(Technological sciences) 2025年第1期68卷 81-116页

作者： Sanming HU Li WANG Zaixian YUAN Kun CHEN Wei PENG Hai YIN Zhijun SHI Guang YANG School of Biomedical Engineering and Imaging Xianning Medical CollegeHubei University of Science and TechnologyXianning 437100China College of life science and technology Huazhong University of Science and TechnologyWuhan 430074China Wuhan Branch of the National science Library Chinese Academy of SciencesWuhan 430071China

Smart fibers and textiles have attracted considerable interest for application in wearable devices because of their advantages of being human-friendly,lightweight,flexible,and *** addition,they are considered to have potential applications in health monitoring,energy management,and human-machine interaction *** and polymer fibers,with excellent mechanical strength,wrinkle resistance,and heat resistance,are widely used to fabricate smart fibers and ***,a comprehensive overview of polymer-based fibers and textiles is ***,we review the design principles of various polymer-based smart textiles,including textile-based sensors,energy capture and storage textiles,and computation and display ***,materials used for preparing polymer-based smart fibers,such as metals,carbon-based materials,and natural and synthetic polymers,particularly conductive polymers,are *** addition,this review summarizes key technologies used for preparing smart fibers and the conventional structures of smart ***,the applications of smart textiles in personal health monitoring,thermal management,energy capture and storage,and computation and displays are ***,the current challenges,limitations,and future trends of smart fibers and textiles are discussed.

关键词： polymers smart fibers smart textiles wearable electronics health management

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Emerging natural clay-based materials for stable and dendrite-free lithium metal anodes: A review

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Chinese Chemical Letters 2025年第2期36卷 161-172页

作者： Haobo Wang Fei Wang Yong Liu Zhongxiu Liu Yingjie Miao Wanhong Zhang Guangxin Wang Jiangtao Ji Qiaobao Zhang School of Materials science and Engineering Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing Technology Henan University of Science and Technology faculty of Engineering Huanghe Science and Technology University Henan Key Laboratory of Non-Ferrous Materials science & Processing technology Henan University of Science and Technology College of Agricultural Equipment Engineering Henan University of Science and Technology State Key Laboratory of Physical Chemistry of Solid Surfaces College of Materials Xiamen University

Lithium metal is one of the most promising anodes for lithium batteries because of their high theoretical specific capacity and the low electrochemical potential. However, the commercialization of lithium metal anodes(LMAs) is facing significant obstacles, such as uncontrolled lithium dendrite growth and unstable solid electrolyte interface, leading to inferior Coulombic efficiency, unsatisfactory cycling stability and even serious safety issues. Introducing low-cost natural clay-based materials(NCBMs) in LMAs is deemed as one of the most effective methods to solve aforementioned issues. These NCBMs have received considerable attention for stabilizing LMAs due to their unique structure, large specific surface areas, abundant surface groups, high mechanical strength, excellent thermal stability, and environmental friendliness. Considering the rapidly growing research enthusiasm for this topic in the last several years, here, we review the recent progress on the application of NCBMs in stable and dendrite-free *** different structures and modification methods of natural clays are first summarized. In addition, the relationship between their modification methods and nano/microstructures, as well as their impact on the electrochemical properties of LMAs are systematically discussed. Finally, the current challenges and opportunities for application of NCBMs in stable LMAs are also proposed to facilitate their further development.

关键词： Aolid-state electrolyte Li metal anodes Natural clay-based materials Rechargeable batteries Surface modification