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Removal of Organochlorine from Model Oil Using Mg-Modified ZSM-5 Zeolite:Dechlorination Performance,Regeneration,and Thermodynamics

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China Petroleum Processing & Petrochemical technology 2023年第2期25卷 24-32页

作者： Cheng Xingyuan Gu Jie Huang Bingtian Bing Liancheng Han Dezhi Wang Guangjian Wang Fang State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering Qingdao University of Science and TechnologyQingdaoShandong 266042China

Various metal-modified ZSM-5 zeolite adsorbents prepared by the impregnation method were applied to the removal of organic chlorides from model *** adsorption performance and regeneration stability were investigated by static adsorption *** morphologies,structural features,and physicochemical properties of the adsorbents were characterized by X-ray diffraction,Brunauer-Emmett-Teller analysis,NH3 temperature-programmed desorption,scanning electron microscopy,transmission electron microscopy,and pyridine adsorption infrared *** Mg/ZSM-5 zeolite adsorbent possessed a relatively high specific surface area and good metal dispersion and exhibited the best dechlorination and regeneration *** characterization results revealed that introduction of the metal exerted a significant influence on the acidic properties of the catalyst surface.A decrease in the ratio of Brønsted acidic sites to Lewis acidic sites and an increase in the amount of moderately acidic sites were confirmed to be responsible for the excellent adsorption performance of the Mg-modified ZSM-5 ***,the Langmuir adsorption isotherm model was applied to study the adsorption equilibrium and thermodynamics of the Mg/ZSM-5 adsorbent under mild *** results revealed that the removal of 1,2-dichloroethane by the Mg/ZSM-5 adsorbent was endothermic,spontaneous,disordered,and primarily involved physical adsorption.

关键词： adsorption dechlorination ZSM-5 zeolite metal modification thermodynamics

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Recent advances in elaborate interface regulation of BiVO_(4)photoanode for photoelectrochemical water splitting

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Materials Reports(Energy) 2023年第4期3卷 3-18页

作者： Liming Wang Yaping Zhang Weibing Li Lei Wang Key Laboratory of Eco-chemical Engineering International Science and Technology Cooperation Base of Eco-chemical Engineering and Green ManufacturingCollege of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao266042PR China

Bismuth vanadate(BiVO_(4))is an excellent photoanode material for photoelectrochemical(PEC)water splitting system,possessing high theoretical photoelectrocatalytic conversion ***,the actual PEC activity and stability of BiVO_(4)are faced with great challenges due to factors such as severe charge recombination and slow water oxidation kinetics at the ***,various interface regulation strategies have been adopted to optimize the BiVO_(4)*** review provides an in-depth analysis for the mechanism of interface regulation strategies from the perspective of factors affecting the PEC performance of BiVO_(4)*** interface regulation strategies improve the PEC performance of BiVO_(4)photoanode by promoting charge separation and transfer,accelerating interfacial reaction kinetics,and enhancing *** research on the interface regulation strategies of BiVO_(4)photoanode is of great significance for promoting the development of PEC water splitting *** the same time,it also has inspiration for providing new ideas and methods for designing and preparing efficient and stable catalytic materials.

关键词： Photoelectrochemical water splitting BiVO_(4)photoanode Charge recombination Water oxidation reaction kinetics Interface regulation strategy

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Amorphous NiO_(n)coupled with trace PtO_(x)toward superior electrocatalytic overall water splitting in alkaline seawater media

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Nano Research 2023年第5期16卷 6517-6530页

作者： Wenli Yu Hongru Liu Ying Zhao Yunlei Fu Weiping Xiao Bin Dong Zexing Wu Yongming Chai Lei Wang State Key Laboratory of Heavy Oil Processing College of ScienceChina University of Petroleum(East China)Qingdao 266580China Key Laboratory of Eco-chemical Engineering Ministry of EducationInternational Science and Technology Cooperation Base of Eco-chemical Engineering and Green ManufacturingCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China College of Science Nanjing Forestry UniversityNanjing 210037China

Developing corrosion resistance bifunctional electrocatalysts with high activity and stability toward both hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),especially electrolysis in seawater,is of prime significance but still pressingly ***,in-situ introduced PtO_(x)on the derivative amorphous NiO_(n)is prepared via heat treatment of Ni ZIFL nanosheets on nickel foam under low temperature(PtO_(x)-NiO_(n)/NF).The synthesized PtO_(x)-NiO_(n)/NF possesses suprahydrophilic and aerophilic surface,then in favor of intimate contact between the electrode and electrolyte and release of the generated gas bubbles during the *** a result,the in-situ PtO_(x)-NiO_(n)/NF electrode presents outstanding bifunctional activity,which only requires extremely low overpotentials of 32 and 240 mV to reach a current density of 10 mA·cm^(-2)for HER and OER,respectively,which exceeds most of the electrocatalysts previously developed and even suppresses commercial Pt/C and RuO_(2)*** for two-electrode cell organized by PtO_(x)-NiO_(n)/NF,the voltages down to 1.57 and 1.58 V are necessary to drive 10 mA·cm^(-2)with remarkable durability in 1 M KOH and alkaline seawater,respectively,along with remarkable ***,a low cell voltage of 1.88 V is needed to achieve 1,000 mA·cm^(-2)toward water-splitting under industrial *** study provides a new idea for designing in-situ amorphous metal oxide bifunctional electrocatalyst with strong Pt–support interaction for overall water splitting.

关键词： hydrogen/oxygen evolution reaction alkaline seawater splitting amorphous structure ultralow Pt electrocatalyst

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Conductive fibers for biomedical applications

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Bioactive Materials 2023年第4期22卷 343-364页

作者： Leqian Wei Shasha Wang Mengqi Shan Yimeng Li Yongliang Wang Fujun Wang Lu Wang Jifu Mao Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai201620China Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology Donghua UniversityShanghai201620China School of Health and Life Sciences University of Health and Rehabilitation SciencesQingdao CityShandong Province266071China

Bioelectricity has been stated as a key factor in regulating cell activity and tissue function in electroactive ***,various biomedical electronic constructs have been developed to interfere with cell behaviors to promote tissue regeneration,or to interface with cells or tissue/organ surfaces to acquire physiological status via electrical *** from the outstanding advantages of flexibility,structural diversity,customizable mechanical properties,and tunable distribution of conductive components,conductive fibers are able to avoid the damage-inducing mechanical mismatch between the construct and the biological environment,in return to ensure stable functioning of such constructs during physiological ***,this review starts by presenting current fabrication technologies of conductive fibers including wet spinning,microfluidic spinning,electrospinning and 3D printing as well as surface modification on fibers and fiber *** provide an update on the biomedical applications of conductive fibers and fiber assemblies,we further elaborate conductive fibrous constructs utilized in tissue engineering and regeneration,implantable healthcare bioelectronics,and wearable healthcare *** conclude,current challenges and future perspectives of biomedical electronic constructs built by conductive fibers are discussed.

关键词： Conductive fibers Conductive biomaterials Tissue repair Implantable bioelectronics Wearable bioelectronics

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Ignition dynamics of radio frequency discharge in atmospheric pressure cascade glow discharge

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Chinese Physics B 2023年第2期32卷 354-357页

作者：张亚容韩乾翰方骏林郭颖石建军 College of Science Donghua UniversityShanghai 201620China Textile Key Laboratory for Advanced Plasma Technology and Application Donghua UniversityShanghai 201620China

A cascade glow discharge in atmospheric helium was excited by a microsecond voltage pulse and a pulse-modulated radio frequency(RF) voltage, in which the discharge ignition dynamics of the RF discharge burst was investigated experimentally. The spatio-temporal evolution of the discharge, the ignition time and optical emission intensities of plasma species of the RF discharge burst were investigated under different time intervals between the pulsed voltage and RF voltage in the experiment. The results show that by increasing the time interval between the pulsed discharge and RF discharge burst from 5 μs to 20 μs, the ignition time of the RF discharge burst is increased from 1.6 μs to 2.0 μs, and the discharge spatial profile of RF discharge in the ignition phase changes from a double-hump shape to a bell-shape. The light emission intensity at 706 nm and 777 nm at different time intervals indicates that the RF discharge burst ignition of the depends on the number of residual plasma species generated in the pulsed discharges.

关键词： pulsed voltage modulated radio frequency radio frequency(RF)discharge burst residual plasma species

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Luminescence properties of composite material Sr_(2)MgSi_(2)O_(7):Eu^(2+),Dy^(3+)/light conversion agent with multilayer structure

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Journal of Rare Earths 2022年第1期40卷 34-40页

作者： Liubin Zheng Yanan Zhu Zengyuan Pang Mingqiao Ge College of Textile Science and Engineering Jiangnan UniversityWuxi 214122China Key Laboratory of Eco-Textiles Ministry of EducationJiangnan UniversityWuxi 214122China

In order to improve the red luminescent properties,Sr_(2)MgSi_(2)O_(7):Eu^(2+),Dy^(3+)was selected as a blue persistent luminescent donor phosphor,while light conversion agent was utilized to tune the persistent luminescent spectra from blue to *** red luminescent material Sr_(2)MgSi_(2)O_(7):Eu^(2+),Dy^(3+)/light conversion agent(SMED/LCA)was fabricated with light conversion agent and Sr_(2)MgSi_(2)O_(7):Eu^(2+),Dy^(3+)at a certain mass ***_(2)(Al2 O_(3) or MgF2)were coated on the surface of SMED/LCA through heterogeneous deposition *** structural and optical characteristics of the resulting samples were launched in terms of X-ray diffraction and emission spectrum as well as afterglow *** results demonstrate that the emission spectrum exhibits two emission bands,and the peaks are located at around 470 and 615 ***_(2),Al_(2)O_(3) and MgF_(2) are coated on the surface of SMED/LCA like a protective shell to maintain its stability and luminescent properties,the afterglow initial brightness is still up to 0.37 cd/m^(2) and the afterglow color purity calculated from CIE color coordinates is basically unchanged.

关键词： Sr_(2)MgSi_(2)O_(7):Eu^(2+),Dy^(3+) Light conversion agent Stability Multilayer structure Composite material Rare earths

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pH-Sensitive Anti-oxidation Composite Cotton Yarn Loaded with TPU/CUR Nanoparticles

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Fibers and Polymers 2025年第4期26卷 1605-1615页

作者： Li, Xinran Zhou, Yuyang Zheng, Guangming Guo, Jinke Shang, Shanshan Xin, Binjie School of Textiles and Fashion Shanghai University of Engineering Science Shanghai201620 China Key Laboratory of Textile Science and Technology Ministry of Education College of Textiles Donghua University Shanghai201620 China

This study investigates the use of easily accessible nano-biological materials with color change capabilities, antioxidant properties, and antibacterial characteristics. Utilizing electrospinning technology, curcumin-loaded composite elastic polyurethane nanoparticles were prepared and successfully integrated into pre-combed cotton web through a spraying and bonding process. Subsequently, the yarn was produced using traditional spinning methods, including coarse and fine yarn spinning. Cotton webs loaded with varying curcumin contents (1%, 2%, 3%, and 4% by mass) were successfully formed at a feed rate of 60 mm/s. The micro-morphology, macro properties, and functional characteristics of these webs were examined post-yarn spinning at 25 °C and a relative humidity of 60%. Scanning electron microscopy observations indicated that as the curcumin loading content increased, the distribution of curcumin nanoparticles on the cotton fiber surface became more uniform. This research seeks to address the effective loading of curcumin nanoparticles into yarn and to explore the impact of curcumin content on the properties of the resultant yarn. © The Author(s), under exclusive licence to the Korean Fiber Society 2025.

关键词： Biological materials

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Distribution and influencing factors of microeukaryote in different water layers of the southwestern Indian Ocean Ridge

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Journal of Oceanology and Limnology 2024年第5期42卷 1525-1539页

作者： Zhong LI Chao YUAN Ping SUN Mingzhu FU Xuelei ZHANG Zongling WANG Qinzeng XU College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China

Microeukaryotes play a vital role in shaping marine ecosystems,especially in marine productivity,the microbial food web,and carbon *** Indian Ocean is one of the largest oligotrophic areas in the world,but little is known about the biodiversity of microeukaryotes in the *** community composition and geographical distribution of microeukaryotes collected from the surface(SUR)and deep chlorophyll maximum(DCM)layers in the southwestern Indian Ocean were studied using high-throughput sequencing of the 18S rRNA *** metagenomic data helped quantify the impact of environmental factors on microeukaryotic *** relative abundance of different taxa groups exhibited distinct patterns between SUR and DCM layers,except for the most dominant Dinoflagellata that accounted for more than 40.6%abundance in each *** was much more abundant in the nutrient-rich DCM layer than the SUR *** community similarity of microeukaryotes decreased with increasing of geographic distance,whereas the temperature and inorganic nitrogen were the most important environmental parameters to community *** communities were more influenced by dispersal limitations and rare communities were more responsive to environmental *** network analyses revealed strong biotic interactions indicative of parasitism,predation and competition,and their contribution to microeukaryotic population in diverse ***,this study provided insights into the biodiversity of microeukaryotes by characterizing the differences between water layers and identifying the driving factors in the ocean.

关键词： microeukaryote southwestern Indian Ocean community structure environmental factor biotic interaction Dinoflagellata

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Unusual uranium biomineralization induced by green algae: Behavior investigation and mechanism probe

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Journal of Environmental sciences 2023年第2期124卷 915-922页

作者： Yanxia Cheng Ting Zhang Shunzhang Chen Feize Li Renwei Qing Tu Lan Yuanyou Yang Jiali Liao Ning Liu Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China Key Laboratory of Bio-Resource and Eco-Environment of the Ministry of Education College of Life SciencesSichuan UniversityChengdu 610065China

As a biosorbent,algae are frequently used for the biotreatment or bioremediation of water contaminated by heavymetal or ***,it is unclear that whether or not the biomineralization of these metal or radionuclides can be induced by algae in the process of bioremediation and what the mechanism *** this work,Ankistrodsemus *** been used to treat the uranium-contaminated water,and more than 98%of uranium in the solution can be removed by the alga,when the initial uranium concentration ranges from 10 to 80 mg/***,an unusual phenomenon of algae-induced uranium biomineralization has been found in the process of uranium bioremediation and its mineralization mechanism has been explored bymultiple *** is worth noticing that the biomineralization of uranium induced by Ankistrodsemus *** significantly affected by contact time and *** is captured rapidly on the cell surface via complexation with the carboxylate radical,amino and amide groups of themicroalgae cells,which provides nucleation sites for the precipitation of *** stimulates Ankistrodsemus *** metabolize potassium ions(K+),which may endow algae with the ability to biomineralize uranium into the rose-like compreignacite(K_(2)[(UO_(2))6O_(4)(OH)_(6)]•8H_(2)O).As the time increased,the amorphous gradually converted into compreignacite crystals and a large number of crystals would expand over both inside and outside the *** the best of our knowledge,this is the first investigated microalgae with a time-dependent uranium biomineralization ability and superior tolerance to *** work validates that Ankistrodsemus *** a promising alga for the treatment of uranium-contaminated wastewater.

关键词： Uranium algae Ankistrodesmus sp. Biomineralization

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Population characteristics of the dominant cold-water brittle star Ophiura sarsii vadicola(Ophiurida,Ophiuroidea)in the Yellow Sea

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Journal of Oceanology and Limnology 2025年第3期43卷 865-877页

作者： Xuying HU Yixuan LI Yue DONG Xiaomei LIAO Qian ZHANG Anning MOU Xinlong LI Xuelei ZHANG Qinzeng XU Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory for Marine Ecology and Environmental Science Qingdao Marine Science and Technology CenterQingdao 266100China Department of Biology Hong Kong Baptist UniversityHong Kong SAR 999077China

Global warming has severe effects on cold-water *** Yellow Sea Cold Water Mass(YSCWM)is a typical cold-water habitat in the western Pacific *** southern YSCWM face much more environmental pressure than the northern *** hypothesize that the cold-water Ophiuroid species Ophiura sarsii vadicola,the dominant benthic species in the YSCWM,will be less abundant with an ageing population in the northern *** on a survey in 2018,we found the density of *** vadicola reached 315 inds./m^(2)in the northern Yellow Sea,higher than previous *** and organic mass peaked at 45.5 g/m^(2)and 4.89 g/m^(2).There was a strong linear relationship between wet weight and dry weight/ash-free dry weight(AFDW).Over 48000 individuals were measured(diameter:1.0-17.5 mm)and were notably smaller than related species from higher latitudes.A Gompertz growth model was established by examining ossicle growth *** structures differed between the northern and southern YSCWM,and the former was dominated by younger *** study enriched our understanding on the ecology of brittle star and provides valuable data and insights for future research on the benthic ecosystems of the Yellow Sea.

关键词： Ophiura sarsii vadicola population characteristic growth equation Yellow Sea

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