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Dynamic Active Sites in Bi_(5)O_(7)I Promoted by Surface Tensile Strain Enable Selective Visible Light CO_(2)Photoreduction

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Research 2023年第1期2022卷 301-311页

作者： Xian Shi Xing'an Dong Yanjuan Sun Shihan Zhang Fan Dong Research Center for Environmental and Energy Catalysis Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu 611731China School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of EnvironmentZhejiang University of TechnologyHangzhou 310014China

Surface defects with abundant localized electrons on bismuth oxyhalide catalysts are proved to have the capability to capture and activate CO_(2).However,bismuth oxyhalide materials are susceptible to photocorrosion,making the surface defects easily deactivated and therefore losing their function as active *** of deactivation-resistant surface defects on catalyst is essential for stable CO_(2)photoreduction,but is a universal *** this work,the Bi_(5)O_(7)I nanotubes with surface tensile strain are synthesized,which are favorable for the visible light-induced dynamic I defects *** CO_(2)molecules absorbed on I defects are constantly reduced by the incoming photogenerated electrons from I-deficient Bi_(5)O_(7)I nanotubes and the successive protonation of CO_(2)molecules is thus highly promoted,realizing the selective CO_(2)conversion process via the route of CO_(2)-COOH^(-)-*** efficient and stable photoreduction of CO_(2)into CO with 100%selectivity can be achieved even under visible light(>420 nm)irradiation benefited from the dynamic I defects as active *** results presented herein demonstrate the unique action mechanism of light-induced dynamic defects during CO_(2)photoreduction process and provide a new strategy into rational design of deactivation-resistant catalysts for selective CO_(2)photoreduction.

关键词： visible bismuth rational

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Heteroatomic Modification of Solid-Waste-Based Mesoporous Carbon for Volatile Organic Compound Adsorption

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China Petroleum Processing & Petrochemical technology 2023年第1期25卷 66-78页

作者： Liu Jun Li Zhi Xu Ke Zhang Xinyang Li Yunpeng Wang Ya Zhang Yongfa Yang Song Liu Shoujun Li Junhua College of Chemistry Taiyuan University of TechnologyTaiyuan 030024 State Key Joint Laboratory of Environment Simulation and Pollution Control National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and EquipmentSchool of EnvironmentTsinghua UniversityBeijing 100084 State Key Laboratory of Clean and Efficient Coal Utilization College of Chemical Engineering and TechnologyTaiyuan University of TechnologyTaiyuan 030024 Shandong Pengda Ecological Technology Co. Ltd.ZiboShandong 255420 Taiyuan Green Coke Energy Co. Ltd.Taiyuan 030006

Solid-waste-based activated carbon(AC)was utilized as a carbon source to synthesize a series of carbon-based functional material RAC-X(X=P and S,where P and S denote phosphoric and sulfuric acids,respectively).The toluene adsorption capacities of the regeneration AC(RAC)samples can be significantly improved by adopting the heteroatomic modification ***-P and RAC-S have the same specific surface area(1156 m^(2)/g)and similar porous ***,they have different toluene adsorption capacities,with 316.22 mg/g for RAC-P and 460.12 mg/g for RAC-S,which are 1.6 and 2.4 times greater than that for *** X-ray photoelectron spectroscopy measurements showed that the increase in the amount ofπ–π^(2)chemical bond over the AC surface results in the improvement of the toluene adsorption *** density functional theory results showed that the S-containing functional groups loaded near the defect sites of RAC-S promote toluene ***,reusability tests showed that RAC-S still retains 86%of its adsorption activity after four consecutive adsorption–desorption *** indicates that the heteroatomic modification method affords excellent toluene adsorption performance and recycling practicability,which not only is beneficial for achieving the rational utilization of solid waste resources but also provides a practical method for the efficient elimination of volatile organic compounds.

关键词： waste activated carbon toluene adsorption heteroatomic modification functional groups DFT analysis

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Balancing the piezoelectric coefficient and carrier concentration of Bi_(2)WO_(6−x) for ultrahigh piezocatalysis

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Journal of Advanced Ceramics 2024年第11期13卷 1737-1747页

作者： Ying Wang Xiaoli Xu Lingbo Xiao Lutao Li Qiuhua Xu Zhenhai Wen Laishun Qin Yanmin Jia Dong-Liang Peng Wanping Chen Da Chen College of Materials and Chemistry China Jiliang UniversityHangzhou 310018China Key Laboratory of Jiangxi Province for Persistent Pollutants Control National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization and Resources RecycleNanchang Hangkong UniversityNanchang 330063China Department of Physics Zhejiang University of Science and TechnologyHangzhou 310008China Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast UniversityNanjing 211189China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province College of EnergySoochow UniversitySuzhou 215006China State Key Laboratory of Structural Chemistry and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen EnergyFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710121China State Key Laboratory of Physical Chemistry of Solid Surface Fujian Key Laboratory of Surface and Interface Engineering for High Performance MaterialsCollege of MaterialsXiamen UniversityXiamen 361005China School of Physics and Technology Wuhan UniversityWuhan 430072China

Balancing the piezoelectric coefficient and carrier concentration of materials is key in the field of *** this work,Bi_(2)WO_(6) material with both piezoelectric and semiconductor properties was chosen as a model material.A one-step ethylene glycol(EG)-assisted solvothermal method was used to synthesize Bi2WO6 with oxygen *** controlling the solvothermal time and temperature,the oxygen vacancy concentration(COV)was *** COV increases,the piezoelectric coefficient decreases,the carrier concentration increases,and the hydrogen production rate first increases but then *** COV reaches 1.45×10^(12) spins·mg^(−1),the corresponding piezoelectric coefficient and carrier concentration are 13.9 pm·V^(−1) and 2.90×10^(20) cm^(−3),*** optimal hydrogen production rate per power of 2.21μmol·g^(−1)·h^(−1)·W^(−1) is equivalent to or even better than that of most reported *** piezoelectric coefficient and carrier concentration,as two factors,jointly determine the piezocatalytic *** findings of this research can provide important and deep-seated insights for better piezocatalysts in the future.

关键词： piezocatalysis oxygen vacancy carrier concentration piezoelectric coefficient hydrogen evolution

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High energy storage performance in AgNbO_(3) relaxor ferroelectric films induced by nanopillar structure

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Journal of Materials science & technology 2023年第24期155卷 160-166页

作者： Xiang Li Jing Wang Xingyuan San Ning Wang Lei Zhao Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province College Physics Science and Technology Hebei University Baoding 071002 China State Key Laboratory of Mechanics and Control of Mechanical Structures College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China Huangpu Hydrogen Energy Innovation Center School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 China

Inspired by the increasing demand for energy-storage capacitors in electrical and electronic systems, dielectrics with high energy-storage performance have attracted more and more attention. AgNbO_(3) -based lead-free ceramics serve as one of the most promising environmental-friendly candidates. However, their energy storage optimization is seriously limited by the low breakdown strength. Fortunately, thin film as a form of AgNbO3 materials can effectively improve the breakdown strength. In this work, AgNbO_(3)film with ∼550 nm in thickness was deposited on SrRuO_(3 )/(001)SrTiO_(3) using pulsed laser deposition. The AgNbO_(3) film reveals typical relaxor ferroelectric hysteresis loops due to the new nanopillar structure, which contributes to high breakdown strength of up to 1200 kV cm^(-1) . Benefiting from the high breakdown strength, a recoverable energy storage density of 10.3 J cm^(-3) and an energy efficiency of 72.2% are obtained in the AgNbO_(3) film, which demonstrates the promising prospect of AgNbO_(3) film for energy storage applications.

关键词： AgNbO3 film Relaxor ferroelectrics Energy storage performance Nanopillar structure

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Degradation of odorous 2,4,6-trichloroanisole in chlorinated water by UV-LED/chlorination: kinetics and influence factors

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Environmental science and Pollution Research 2023年第15期30卷 44325-44336页

作者： Zhang, Yun-Lu Lin, Yi-Li Zhang, Tian-Yang Lu, Yong-Shan Zhou, Xiao-Yang Liu, Zhi Zheng, Zheng-Xiong Xu, Meng-Yuan Xu, Bin State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai200092 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China Department of Safety Health and Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung824 Taiwan

2,4,6-Trichloroanisole (2,4,6-TCA) has aroused a special concern for their odor problem and potential threats. In this study, the degradation of 2,4,6-TCA by UV/chlorination with different UV sources was compared, including low-pressure mercury lamp (LPUV, 254 nm) and ultraviolet light-emitting diode (UV-LED, 275 and 285 nm). The maximum removal of 2,4,6-TCA can be achieved by 275-nm UV-LED/chlorination in neutral and alkaline conditions which was 80.0%. The reaction, kinetics, and water matrix parameters on 2,4,6-TCA degradation were also evaluated. During UV-LED (275 nm)/chlorination, 2,4,6-TCA degradation was mainly caused by direct UV photolysis and indirect hydroxyl radical (HO·) oxidation, while reactive chlorine radicals (RCSs) had a negligible contribution. The second-order rate constant between HO· and 2,4,6-TCA was determined as 3.1 × 109 M−1 s−1. Increasing initial chlorine dosage and decreasing 2,4,6-TCA concentration or pH value significantly promoted 2,4,6-TCA degradation during UV/chlorination process. The presence of natural organic matter (NOM) and bicarbonate (HCO3−) can inhibit 2,4,6-TCA degradation, while chloride ion (Cl−) had a negligible effect. The kinetic model for 2,4,6-TCA degradation was established and validated, and the degradation pathways were proposed based on the identified intermediates. Furthermore, UV-LED (275 nm)/chlorination also exhibited a promising effect on 2,4,6-TCA removal in real water, which can be used to control 2,4,6-TCA pollution and odor problems. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

关键词： Alkalinity

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A Method for Filtering Data-Driven Predictive control Aimed at Vehicle Lateral Stabilization in Compacted-Snow Rutted Road Conditions 8

A Method for Filtering Data-Driven Predictive Control Aimed ...

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8th CAA International Conference on Vehicular control and Intelligence, CVCI 2024

作者： Zhao, Xu Guo, Hongyan Shi, Wanqing College of Communication Engineering Jilin University Changchun China Jilin Institute of Chemical Technology Department of Aircraft Control and Information Engineering Changchun China College of Communication Engineering Jilin University State Key Laboratory of Automotive Simulation and Control Changchun China

ISBN: (纸本)9798331504892

Designing a data-driven predictive controller for lateral stability of vehicles on compacted-snow rutted roads, especially when the data is subjected to non-stationary noise disturbances, is a significant challenge. This paper introduces a novel subspace predictive equation construction method that incorporates filtering using the inverse of a first-order disturbance model. Based on this, a filtering data-driven predictive controller is designed. The proposed method is tested through numerical simulations and MATLAB/CarSim co-simulation. Simulation results show that the proposed subspace predictive equation with filtering effectively mitigates the variance and bias introduced by non-stationary noise. The co-simulation results demonstrate that the controller ensures the stability and robustness of the vehicle system. © 2024 IEEE.

关键词： Predictive control systems

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Trajectory Tracking control for Autonomous Parking Based on Adaptive Reduced-horizon Model Predictive control 19

Trajectory Tracking Control for Autonomous Parking Based on ...

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19th IEEE International Conference on Networking, Sensing and control, ICNSC 2022

作者： Cai, Minghan Wu, Weimin Zhou, Xiaoling Technology Institute of Cyber-Systems and Control Zhejiang University The State Key Laboratory of Industrial Control Hangzhou310027 China College of Control Science and Engineering Zhejiang University Hangzhou310027 China

ISBN: (纸本)9781665472432

In this paper, an adaptive reduced-horizon model predictive control is proposed for autonomous parking trajectory tracking. Given the reference trajectory, the discrete linear time varying model is obtained by linearizing and discretizing along the reference trajectory point. Furthermore, the model is reformulated into a combined incremental form. Then, a standard quadratic programming problem is established, and the optimal control strategy is obtained by solving the problem online at every time instant. Meanwhiles, the prediction horizon will reduce adaptively by solving the constrained optimization problem, and it will minimize the computation time complexity of the MPC-based controller. The actual parking scenarios are co-simulated in Simulink and Carsim, which shows the effectiveness and feasibility of the proposed method. © 2022 IEEE.

关键词： Model predictive control

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Cloud-based smartphone-assisted chemiluminescent assay for rapid screening of electroactive bacteria

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science China(Technological sciences) 2023年第3期66卷 743-750页

作者： WEN JunLin HE DaiGui LUO SongQing ZHOU ShunGui YUAN Yong Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China College of Artificial Intelligence Guangdong Mechanical&Electrical PolytechnicGuangzhou 510550China Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China

Electroactive bacteria(EAB)can transfer electrons to exocellular solid acceptors and have widespread applications in the fields of pollutant degradation,biosynthesis,and hydrogen *** EAB screening methods can precisely measure the bacterial extracellular electron transfer ability,but they suffer from time-consuming and labor-intensive *** chemiluminescence technique is effective for the rapid detection of hemoglobin but has not been applied for EAB ***,we utilized a chemiluminescent assay to identify EAB through a multiheme c-type cytochrome(c-Cyt)triggered chemiluminescent *** multiheme c-Cyts-triggered chemiluminescence was conveniently determined by taking photographs with commercial smartphones and cloud-based *** acquired image signal shows a significant and linear relationship with the bacterial *** results of the chemiluminescence intensity triggered by different bacterial species with the proposed method are strongly associated with those of the microplate reading method(Pearson’s r of 0.9795;P<0.01)and dissimilatory Fe(Ⅲ)reduction method(Pearson’s r of 0.9628;P<0.01).Furthermore,this cloud-based and smartphone-assisted chemiluminescent assay is instrument-free and easy to operate,and results can be obtained within 2 *** findings demonstrate that the proposed method can effectively detect ***,it will be an alternative approach for EAB screening and can have promising applications in microbiology,environmental science,and bioenergy.

关键词： electroactive bacteria c-type cytochrome chemiluminescence cloud computing smartphone

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Recent advances,challenges,and perspectives on carbon capture

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Frontiers of Environmental science & engineering 2024年第6期18卷 75-104页

作者： Shihan Zhang Yao Shen Chenghang Zheng Qianqian Xu Yifang Sun Min Huang Lu Li Xiongwei Yang Hao Zhou Heliang Ma Zhendong Li Yuanhang Zhang Wenqing Liu Xiang Gao Institute of Energy and Sustainable Development Zhejiang University of TechnologyHangzhou 310014China College of Environment Zhejiang University of TechnologyHangzhou 310014China Baima Lake Laboratory Hangzhou 310051China Institute of Carbon Neutrality College of Energy EngineeringZhejiang UniversityHangzhou 310027China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China

Carbon capture,utilization and storage(CCUS)technologies play an essential role in achieving Net Zero Emissions *** the lack of timely reviews on the recent advancements in promising CCUS technologies,it is crucial to provide a prompt review of the CCUS advances to understand the current research gaps pertained to its industrial *** that end,this review first summarized the developmental history of CCUS technologies and the current large-scale ***,based on a visually bibliometric analysis,the carbon capture remains a hotspot in the CCUS *** that the materials applied in the carbon capture process determines its *** a result,the state-of-the-art carbon capture materials and emerging capture technologies were comprehensively summarized and *** between state-of-art carbon capture process and its ideal counterpart are analyzed,and insights into the research needs such as material design,process optimization,environmental impact,and technical and economic assessments are provided.

关键词： Carbon capture,utilization and storage Visualization analysis Research hotspots and trends CO_(2)capture technology

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Tailored energy absorption for a novel auxetic honeycomb structure under large deformation

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science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 63-80页

作者： Xiuhui Hou Bin Wang Zichen Deng School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710129China MIIT Key Laboratory of Dynamics and Control of Complex Systems Northwestern Polytechnical UniversityXi'an 710072China School of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentDalian University of TechnologyDalian 116024China

In comparison to conventional hexagonal honeycomb structures,auxetic metamaterials with re-entrant configurations have exhibited superior mechanical properties in terms of energy *** further enhance the energy absorption capacity of these materials,a novel re-entrant honeycomb configuration,named novel auxetic re-entrant honeycomb(NARH),is developed by incorporating“<>”-shaped cell walls into the conventional auxetic re-entrant honeycomb(ARH).Two analytical models for the plateau stress are formulated to consider the plastic deformation of NARH during quasi-static compression and the dynamic impact using the linear momentum ***-static compression tests on 3D printed NARH honeycomb specimens and finite element simulations are performed to verify the effectiveness of the theoretical *** exhibits higher plateau stresses compared with ARH during compression,which can be attributed to the presence of more plastic hinges formed in *** hinges,the embedded parts with inclined cell walls,not only improve stability by forming stable triangles during compression but also enhance the energy absorption capacity.A parametric study is conducted to analyze the effect of impact velocity,thickness,and incline angle of cell walls on *** simulations demonstrate higher sensitivity of the mechanical properties to impact velocity and cell wall *** ribs to the“<>”-shaped cell walls in NARH further reduces the initial peak force during dynamic crushing while maintaining high energy *** research provides valuable guidelines for the design of energy absorption metamaterials.

关键词： absorption walls shaped

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