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Integration of Bio-Enzyme-Treated Super-Wood and AIE-Based Nonwoven Fabric for Efficient Evaporating the Wastewater with High Concentration of Ammonia Nitrogen

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Nano-Micro Letters 2025年第8期17卷 1-16页

作者： Qian Ding Bingqi Jin Yinxia Zheng Huiru Zhao Jun Wang Haoxuan Li Dong Wang Ben Zhong Tang Engineering Research Center of Technical Textiles Ministry of EducationCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620People’s Republic of China State Key Laboratory of Pollution Control and Resources Reuse School of Environmental Science and EngineeringTongji UniversityShanghai 200092People’s Republic of China Nonwoven Technology Laboratory College of Textile Science and EngineeringJiangnan UniversityWuxi 214122People’s Republic of China Centre for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Material Science and EngineeringShenzhen UniversityShenzhen 518061People’s Republic of China School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)Shenzhen 518172People’s Republic of China

The treatment of ammonia nitrogen wastewater(ANW)has garnered significant attention due to the ecology,and even biology is under increasing threat from over discharge *** ANW treatment methods often encounter challenges such as complex processes,high costs and secondary *** progress has been made in employing solar-induced evaporators for wastewater ***,there remain notable barriers to transitioning from fundamental research to practical applications,including insufficient evaporation rates and inadequate resistance to ***,we propose a novel evaporator,which comprises a bio-enzyme-treated wood aerogel that serves as water pumping and storage layer,a cost-effective multi-walled carbon nanotubes coated hydrophobic/hydrophilic fibrous nonwoven mat functioning as photothermal evaporation layer,and aggregation-induced emission(AIE)molecules incorporated as anti-biofouling *** resultant bioinspired evaporator demonstrates a high evaporation rate of 12.83 kg m^(−2) h^(−1) when treating simulated ANW containing 30 wt%NH4Cl under 1.0 sun of ***-doped evaporator exhibits remarkable photodynamic antibacterial activity against mildew and bacteria,ensuring outstanding resistance to biofouling over extended periods of wastewater *** enhanced by natural wind under 1.0 sun irradiation,the evaporator achieves an impressive evaporation rate exceeding 20 kg m^(−2) h^(−1) .This advancement represents a promising and viable approach for the effective removal of ammonia nitrogen wastewater.

关键词： Wood aerogel AIE Anti-biofouling Solar-driven interface evaporation Ammonia nitrogen wastewater treatment

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Distribution, bioaccumulation, trophic transfer and risk assessment of trace elements in fish from a typical shallow outflow lake basin, China

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Frontiers of environmental science & engineering 2024年第7期18卷 141-156页

作者： Miao He Guijian Liu Xiaodan Shi Lei Wu Qiang Chen CAS Key Laboratory of Crust-Mantle Materials and Environment School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Anhui Academy of Environmental Sciences Hefei 230022China School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China

Fish are important food sources for humans,and the availability of appropriate amount of trace elements(TEs)plays a crucial role in fish ***,due to large volumes of sewage discharge,high levels of certain elements are present in aquatic environments,and these elements accumulate in fish and potentially affect human *** this study,the distribution and bioaccumulation capacity of trace elements in six dominant fish species from Chaohu Lake(China)were *** results showed that the bioaccumulation capacity of fish for Zn was greater than other *** the source of the TEs in the fish were explored along with the concentration of the TEs in the aquatic environment,which indicated that TEs in fish were mainly obtained through ingestion and indirectly affected by the industrial activities in the ***,stable carbon and nitrogen isotopes were used to classify the trophic levels and explore the biological magnification of TEs of the *** was found that Sb and Sr showed biomagnification with the increase of trophic level of *** on the above analyses,the environmental biogeochemical cycle model of TEs in the lake was distinguished and established,which can offer valuable insights for sustainable fishery management in the downstream Yangtze River Delta ecosystem.

关键词： Trophic level Bioaccumulation Risk assessment Trace elements

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Polydopamine-mediated phosphoric acid functionalized carbon nano-onions/sulfonated poly (aryl ether sulfone) composite membrane with enhanced proton transport capacity and chemical durability for fuel cell at low humidity

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International Journal of Hydrogen Energy 2025年 144卷 262-274页

作者： Liu, Lili Tian, Yijia Hu, Yujie Wu, Zexin Yang, Pei Yan, Wei Zhang, Yuanyuan Hu, Zhaoxia Chen, Shouwen Shi, Linxing Jiangsu Key Laboratory of Function Control Technology for Advanced Materials School of Science Jiangsu Ocean University Lianyungang222005 China School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China

In this work, phosphorylated carbon nano-onions (PD-CNOs), serving as a preeminent proton-conduction accelerator, are constructed by performing the phosphorylation on polydopamine (PDA) deposited CNOs. The optimized PD-CNOs are subsequently introduced into sulfonated poly (aryl ether sulfone) (SPAES) to obtain high-performance membranes. The characteristic nanosized PD-CNOs possess abundant functional groups, which confer the particles with good hydrophilicity and dispersivity. A series of flexible, tight, and homogeneous SPAES/PD-CNOs membranes are fabricated and evaluated for their microstructure, physicochemical-electrochemical properties and durability. The composite membranes exhibit improved mechanical properties, physicochemical stability, and proton conductivity due to better filler-matrix compatibility, stronger interfacial interactions and more consecutive proton transport pathways. Benefitting from the low zero-point energy, large hydration energy, and amphoteric character of -PO3H2 groups, the low-energy-barrier channels and hydrogen-bonding water bridges could be readily built, which translates into fast proton hopping/diffusion at low relative humidity (RH). SPAES/PD-CNOs-1.5 exhibits excellent proton conductivities of 222 mS cm−1 (90 °C, hydrous state) and 75 mS cm−1 (80 °C, 65 % RH), approximately 1.5 times and 2.0 times than that of SPAES, respectively. The power output values of SPAES/PD-CNOs-1.5 in H2/O2 fuel cells reach 760 mW cm−2 (80 °C, 100 % RH) and 550 mW cm−2 (80 °C, 60 % RH), surpassing those of SPAES (535 and 293 mW cm−2) and Nafion® 112 (722 and 501 mW cm−2);it also demonstrates high enough cell performance stability at 80 °C/60 % RH for 144 h. This work provides an effective proposal for the construction of composite membranes with outstanding proton conductivity and durability at low RH. © 2025 Hydrogen Energy Publications LLC

关键词： Composite membranes

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The Electrothermal Characteristics Under Short-Circuit Stress in Planar Gate SiC MOSFETs 15

The Electrothermal Characteristics Under Short-Circuit Stres...

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15th International Conference on Power, Energy, and Electrical engineering, CPEEE 2025

作者： Song, Xinwei Zhang, Yourun Yang, Xiao Fang, Shuanzhu Wang, Zhizhe School of Integrated Circuit Science and Engineering University of Electronic Science and Technology of China Chengdu China China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou China

ISBN: (纸本)9798331520090

The third-generation wide-bandgap semiconductor, silicon carbide metal-oxide-semiconductor field-effect transistor (SiC MOSFET), has emerged as a focal point in the industry, particularly concerning its robustness under short-circuit conditions. This study presents experimental validations and simulation analyses of the short-circuit failure mechanism, along with the behavior of silicon carbide planar gate power MOSFETs under short-circuit stress. A prevalent phenomenon observed in the short-circuit failures of numerous SiC power devices is the positive feedback of current due to thermal runaway, which typically manifests as an inability to effectively suppress the drain current of the SiC MOSFET after the gate voltage is turned off. In planar gate structures, this phenomenon represents the principal cause of short-circuit failure. Moreover, the degradation of the gate oxide subjected to short-circuit stress can also lead to short-circuit failure of the gate-source, constituting an additional factor. Building upon this foundation, practical tests were conducted on the VDMOS devices to validate the results of the simulation analysis, and a theoretical examination was performed to elucidate the actual failure mechanisms involved. Investigating the short-circuit stability of these devices yields critical insights for the application of power components. © 2025 IEEE.

关键词： Leakage currents

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IGBT Performance Degradation Feature Construction and Real-Time Prediction Based on Machine Learning 17th

IGBT Performance Degradation Feature Construction and Real-T...

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17th Annual Conference of China Electrotechnical Society, CES 2022

作者： Wang, Xin Zhou, Zhenwei He, Shilie Jia, Hanguang Huang, Yun The Science and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Institute Guangzhou510610 China School of Automation and Engineering South China University of Technology Guangzhou510641 China

ISBN: (纸本)9789819903566

Insulated gate bipolar transistor (IGBT) has developed rapidly in recent years, and its performance is excellent in high voltage, high current and high frequency applications, which makes it been regarded as an ideal power module. However, due to the long-term operation in harsh conditions, the degradation of IGBT occurs from time to time, which will cause irreversible damage to electronic equipment and even affect the normal operation of the whole system. Therefore, it is necessary to establish a reliable IGBT anomaly detection system and apply the performance degradation prediction technology to the prediction of IGBT in the whole life cycle. In this paper, based on the data-driven method of degradation characteristic parameters, combined with grey correlation degree, Mahalanobis distance, Kalman filter, support vector regression and other methods, the performance degradation prediction of IGBT is completed and the above methods are verified and analyzed based on NASA public data. © 2023, Beijing Paike Culture Commu. Co., Ltd.

关键词： NASA

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Analyzing the spatiotemporal evolution and driving forces of gross ecosystem product in the upper reaches of the Chaobai River Basin

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Frontiers of environmental science & engineering 2024年第8期18卷 117-132页

作者： Jiacheng Li Qi Han Liqiu Zhang Li Feng Guihuan Liu Beijing Key Laboratory for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research Center for Water Pollution Source Control&Eco-remediation College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Center of Eco-compensation Chinese Academy of Environmental PlanningMinistry of Ecology of EnvironmentBeijing 100041China

The Chaobai River Basin,which is a crucial ecological barrier and primary water source area within the Beijing-Tianjin-Hebei region,possesses substantial ecological *** gross ecosystem product(GEP)in the Chaobai River Basin is a reflection of ecosystem conditions and quantifies nature’s contributions to humanity,which provides a basis for basin ecosystem service management and *** study investigated the spatiotemporal evolution of GEP in the upper Chaobai River Basin and explored the driving factors influencing GEP spatial *** patterns from 2005 to 2020 were analyzed,and GEP was calculated for 2005,2010,2015,and *** driving factors influencing GEP spatial differentiation were identified using the optimal parameter-based geographical detector(OPGD)*** key findings are as follows:(1)From 2005 to 2020,the main ecosystem types were forest,grassland,and *** areas experienced significant changes,and conversions mainly occurred among urban,water,grassland and agricultural ecosystems.(2)Temporally,the GEP in the basin increased from 2005 to 2020,with regulation services *** the county(district)scale,GEP exhibited a north-west-high and south-east-low pattern,showing spatial differences between per-unit-area GEP and county(district)GEP,while the spatial variations in per capita GEP and county(district)GEP were similar.(3)Differences in the spatial distribution of GEP were influenced by regional natural geographical and socioeconomic *** these factors,gross domestic product,population density,and land-use degree density contributed *** among different driving forces noticeably impacted GEP spatial *** findings underscore the necessity of incorporating factors such as population density and the intensity of land-use development into ecosystem management decision-making processes in the upper reaches of the Chaobai River *** policies

关键词： Ecosystem pattern Gross ecosystem product(GEP) Spatiotemporal evolution Optimal parameter-based geographical detector(OPGD) Chaobai River Basin

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Semi-Supervised Contrastive Domain Adaptation Network for Fault Diagnosis of Rotating Machinery Under Cross-Working Conditions

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IEEE Internet of Things Journal 2025年第12期12卷 21552-21564页

作者： Lu, Xingchi Song, Liuyang Han, Changkun Jiang, Quansheng Xu, Weiyang Wang, Huaqing Beijing University of Chemical Technology College of Mechanical and Electrical Engineering Beijing100029 China Suzhou University of Science and Technology School of Mechanical Engineering Suzhou215009 China Jilin University Key Laboratory of CNC Equipment Reliability Ministry of Education School of Mechanical and Aerospace Engineering Changchun130022 China

Existing domain adaptation (DA) methods, which focus on realizing the class-level alignment for cross-domain features to solve the problem of fuzzy classification boundaries in feature learning process, however, it is difficult to deal with samples located at the classification boundary in this way, resulting in diagnosis performance being limited. To solve the problem, this article proposes a semi-supervised contrastive DA network (SSCDAN) for realizing the cross-working condition rotating machinery fault diagnosis method. Specifically, an in-domain semi-supervised contrastive learning (SSCL) strategy is designed, with the supervision of class information, which guides the discriminative learning of different classes in each domain to eliminate the fuzzy classification boundaries, and facilitates the DA of cross-domain features which utilizes the local maximum mean discrepancy (LMMD). Meanwhile, the negative impact from poor-quality target domain pseudo-labels on SSCL and DA is mitigated by dynamically limiting the associated contrastive learning loss and DA loss gain, and introducing domain adversarial. Finally, the effectiveness of SSCDAN is validated by the ablation and comparison experiments on the Paderborn University (PU) and wind turbine gearbox (WTG) datasets. Compared with deep subdomain adaptation (DSAN), SSCDAN improves the overall average accuracy by 22.43% and 7.36% on the cross-working condition diagnosis tasks of PU and WTG datasets, respectively, and outperforms other popular DA methods. © 2014 IEEE.

关键词： Contrastive Learning

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Research of Travel Time reliability Evaluation Method for Road Network Considering Vehicle Coordination Under Unexpected Events

Research of Travel Time Reliability Evaluation Method for Ro...

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International Symposium on System and Software reliability (ISSSR)

作者： Baoqi He Ruiying Li School of Reliability and Systems Engineering Beihang University Beijing China Science and Technology on Reliability and Environmental Engineering Laboratory Beijing China

ISBN: (数字)9798331501242

ISBN: (纸本)9798331501259

Unexpected events can significantly affect the travel time of vehicles, however intelligent driving technology improves vehicle coordination, thereby mitigating these impacts. To evaluate the travel time reliability of road network in such scenarios, this paper designs a traffic modeling and simulation method to obtain the travel time of road section with the consideration of both unexpected events and vehicle cooperation. Based on the simulation results, a VC-BPR function is proposed to modify the traditional BPR function, and the Monte Carlo method is used to evaluate the travel time reliability of the road network. An urban road network is used as a case to demonstrate the effectiveness of this method, and the results show that the travel time reliability under unexpected events increases along with that of vehicle coordination. Notably, after the degree of vehicle coordination falls below 70%, the travel time reliability experiences a significant decline.

关键词： Monte Carlo methods Roads Simulation Fitting reliability engineering Data models Safety reliability Security

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Research progress on catalysts for organic sulfur hydrolysis: Review of activity and stability

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Chinese Journal of Chemical engineering 2024年第7期71卷 203-216页

作者： Bingning Wang Xianzhe Wang Song Yang Chao Yang Huiling Fan Ju Shangguan State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024China Shanxi Engineering Center of Civil Clean Fuel Taiyuan University of TechnologyTaiyuan 030024China College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Environmental Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China

The removal of organic sulfur through catalytic hydrolysis is a significant area of research in the field of *** review provides an overview of recent advancements in catalytic hydrolysis technology of organic sulfur,including the activity,stability,and atmosphere effects of hydrolysis *** emphasis is on strategies for enhancing hydrolysis activity and anti-oxygen poisoning property of *** modification,metal doping and nitrogen doping have been found to improve the activity of *** components modification is the most commonly used method,the formation of oxygen vacancies through metal doping and creation of nitrogen basic sites through nitrogen doping also contribute to the hydrolysis of organic *** strategies for anti-oxygen poisoning are discussed in a systematic *** structural regulation of catalysts is beneficial for the desorption and diffusion of hydrogen sulfide(H_(2)S),thereby effectively inhibiting its *** doping and the addition of electronic promoters such as transition metals can protect active sites and decrease the number of active oxygen *** methods have been proven to enhance the anti-poisoning performance of ***,this article summarizes how different atmospheres affect the activity of hydrolysis *** objective of this review is to pave the way for the development of efficient,stable and widely used catalysts for organic sulfur hydrolysis.

关键词： Organic sulfur Hydrolysis Catalysts Activity Stability

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Exploration of the interaction mechanism in the synergistic degradation of benzene and toluene over MnCoO_(x) catalysts

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Frontiers of environmental science & engineering 2025年第2期19卷 119-134页

作者： Xin Xing Zhe Li Yixin Wang Zonghao Tian Jie Cheng Zhengping Hao College of Environment and Resources Taiyuan University of Science and TechnologyTaiyuan 030024China National Engineering Laboratory for VOCs Pollution Control Material&Technology Research Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing 101408China

The catalytic degradation of single-component VOCs has been widely ***,several types of VOCs may be present in an actual industrial emission *** synergistic removal of multicomponent VOCs is currently a popular research ***,Mn–Co samples with various Mn/Co ratios(1:2,1:1,and 2:1)were successfully prepared,and the catalytic oxidation performance characteristics toward benzene and toluene over these samples under single and binary VOC oxidation conditions were *** with pure MnO_(x) and CoO_(x),the prepared Co–Mn composite oxide samples exhibited significantly improved catalytic ***_(x) and MnCo_(2)O_(x) showed optimum catalytic performance,with 100%benzene and 100%toluene conversion in the mixtures at 300 and 350°C,100%CO_(2) *** methods were employed to elucidate the relevance of the catalytic activity to the structures,acidity,redox properties,Mn–Co valence state and oxygen ***,the interactions between benzene and toluene during their synergistic degradation,as well as the intermediates and potential reaction mechanisms of their simultaneous elimination,were *** Mn–Co oxide compounds for cooperative catalytic oxidation of benzene and toluene represents a viable and effective technique for the practical and synergist elimination of multicomponent VOCs.

关键词： Mn-Co oxides Synergetic catalytic oxidation Benzene and toluene Reaction mechanism

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