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Journal of Environmental Sciences 2025年第3期149卷 314-329页

作者： Lingxia wu Junlin An Key Laboratory for Aerosol-cloud-Precipitation of china Meteorological Administration Nanjing University of Information Science and TechnologyNanjing 210044China

Extensive spatiotemporal analyses of long-trend surface ozone in the Yangtze River Delta(YRD)region and itsmeteorology-related and emission-related have not been systematically *** this study,by using 8-year-long(2015–2022)surface ozone observation data,we attempted to reveal the variation ofmultiple timescale components using the Kolmogorov–Zurbenko filter,and the effects of meteorology and emissions were quantitatively isolated using multiple linear regression with meteorological *** results showed that the short-term,seasonal,and long-term components accounted for daily maximum 8-hr average o_(3)(o_(3–8)hr)concentration,46.4%,45.9%,and 1.0%,*** meteorological impacts account for an average of 71.8%of o_(3–8)hr,and the YRD’s eastern and northern sections aremeteorology-sensitive *** on statistical analysis technology with empirical orthogonal function,the contribution of meteorology,local emission,and transport in the long-term component of o_(3–8)hr were 0.21%,0.12%,and 0.6%,*** spatiotemporal analysis indicated that a distinct decreasing spatial pattern could be observed from coastal cities towards the northwest,influenced by the monsoon and synoptic *** central urban agglomeration north and south of the YRD was particularly susceptible to local *** the cities studied,Shanghai,Anqing,and Xuancheng,located at similar latitudes,were significantly impacted by atmospheric transmission—the contribution of Shanghai,the maximum accounting for 3.6%.

关键词： o_(3)Yangtze River Delta(YRD)Kolmogorov-Zurbenko filter Empirical orthogonal function Long-term trend

Effect of chlorination and ultraviolet on the adsorption of pefloxacin on polystyrene and polyvinyl chloride

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Journal of Environmental Sciences 2025年第3期149卷 21-34页

作者： Yanan Li Yaning wu Kai Guo Weiqin wu Meijing Yao School of Environmental Science and Engineering Taiyuan University of TechnologyShanxi 030600China

During thewater treatment process,chlorination and ultraviolet(UV)sterilization can modify microplastics(MPs)and alter their physicochemical properties,causing various changes between MPs and other *** this study,the impact of chlorination and UV modification on the physicochemical properties of polystyrene(PS)and polyvinyl chloride(PVc)were investigated,and the adsorption behavior of pefloxacin(PEF)before and after modificationwas *** effect of pH,ionic strength,dissolved organicmatter,heavymetal ions and other water environmental conditions on adsorption behavior was *** results showed that PS had a higher adsorption capacity of PEF than PVc,and the modification increased the presence of o-containing functional groups in the MPs,thereby enhancing the adsorption capacity of both *** had a more significant impact on the physicochemical properties of MPs compared to UV irradiation within the same time period,leading to better adsorption performance of *** optimal pH for adsorption was found to be 6,and Nacl,sodium alginate and cu2+would inhibit adsorption to varying degrees,among which the inhibition caused by pH was the *** and UV modification would weaken the inhibitory effect of environmental factors on the adsorption of PEF by *** main mechanisms of adsorption involved electrostatic interaction and hydrogen *** study clarified the effects of modification on the physicochemical properties of MPs,providing reference for subsequent biotoxicity analysis and environmental protection studies.

关键词： Microplastics chlorination Ultraviolet Pefloxacin Adsorption mechanism

PltcRB:a practical distributed randomness beacon with optimal amortized communication complexity

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Science china(Information Sciences) 2025年第2期68卷 269-284页

作者： Zheyi wu Haolin LIU Lei WANG School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University

The distributed randomness beacon(DRB) is a crucial tool for continuously generating unpredictable, bias-resistant,and publicly verifiable random numbers on a regular basis. This is particularly useful for applications such as lotteries, electronic voting, and cryptographic parameter generation. However, existing studies either require complex communication or rely on a public bulletin board to meet security requirements. This brings a performance bottleneck when dealing with a large number of participants. This paper introduces a novel DRB protocol PltcRB based on timed commitments, eliminating the need for a public bulletin board. our approach achieves optimal communication complexity of o(n) while maintaining the desired properties of a DRB protocol. The computation complexity is also o(n) when n is larger than the security parameter κ. These results demonstrate the practicality and performance of PltcRB, supported by our experimental analysis under various configurations.

关键词： timed commitment randomness beacon random number optimal communication complexity permissionlessłinebreak setting

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A quantum-search-based multi-classifier for image recognition

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Science china(Physics,Mechanics & Astronomy) 2025年第1期68卷 17-27页

作者： Lu Liu Xingyu wu Lufan Zhang chuan Wang School of Artificial Intelligence Beijing Normal UniversityBeijing 100875China Applied optics Beijing Area Major Laboratory Beijing Normal UniversityBeijing 100875China

The multi-class classification of images is a pivotal challenge within the realm of image *** the volume of visual data continues to expand,there is a burgeoning interest in harnessing the unique capabilities of quantum computation to augment the efficiency of classification ***,many existing methods for training quantum image multi-classifiers parallel classical machine learning techniques,where the requisite circuit measurements increase linearly with the volume of training *** work introduces a novel approach for training a quantum image multi-classifier based on the quantum search *** have meticulously conducted rigorous experiments on a handwritten digit dataset,a classic benchmark in the *** results have been meticulously compared with previous works,and the comparative analysis not only validates the efficiency of our proposed approach,requiring only o(N/b)measurements during training,but also highlights a significant quadratic speedup of the algorithm.

关键词： quantum computation image recognition quantum search algorithm

Nanostructured Zno/BiVo_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu Yingjie Zhou Yao Lin Ying wu Key Laboratory of the Ministry of Education for Advanced catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVo_(4)porous spheres modified by Zno were designed and synthesized using a facile two-step *** resulting Zno/BiVo_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%Zno/BiVo_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·o_(2)^(-))are proved to be the primary active ***,Zno/BiVo_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

Improving performance of perovskite solar cells enabled by defects passivation and carrier transport dynamics regulation via organic additive

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chinese chemical Letters 2025年第02期36卷 551-556页

作者： Rongjun Zhao Tai wu Yong Hua Yude Wang Department of Physics Center for Optoelectronics Engineering ResearchYunnan University Yunnan Key Laboratory for Micro/Nano Materials&Technology International Joint Research Center for Optoelectronic and Energy MaterialsSchool of Materials and EnergyYunnan University Yunnan Key Laboratory of carbon Neutrality and Green Low-carbon Technologies Yunnan University

Defects at the grain boundaries(GBs) of perovskite film highly restrict both the efficiency and stability of perovskite solar cells(PScs). Herein, organic small molecules of butanedioic acid(BA) and acetylenedicarboxylic acid(AA), containing two carbonyl(c=o) groups and different core-units, were incorporated into perovskite as additives for PScs application. Thanks to the strong coordination interaction between c=o group and under-coordinated Pb2+, the additives can effectively passivate film defects and regulate the perovskite crystallization, yielding high-quality perovskite films with lower defect densities. More importantly, the additives can efficiently regulate the charge transport behaviors in PScs. Benefiting from the defects passivation and the regulation of charge carrier dynamics, the BA and AA-treaded PScs show the power conversion efficiencies of 21.52% and 20.50%, which are higher than that of the control device(19.41%). Besides, the optimal devices exhibit a remarkable enhanced long-term stability and moisture tolerance compared to the pristine devices. Furthermore, the transient absorption spectrum reveals the mechanism of enhanced photovoltaic performances, attributing to the improvement of charge transport capability at the perovskite/Spiro-oMeTAD interfaces. This work affords a promising strategy to improve the efficiency and stability of PScs through regulating the charge-carrier dynamic process in perovskite film.

关键词： Additives carrier dynamics Defects passivation Perovskite solar cells Stability

A functional cathode sodium compensation agent for stable sodium-ion batteries

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Green Energy & Environment 2025年第1期10卷 173-182页

作者： Wei wu Zhenglin Hu Zhengfei Zhao Aoxuan Wang Jiayan Luo Key Laboratory for Green chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China State Key Laboratory of Metal Matrix composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China Shanghai Jiao Tong University Shaoxing Research Institute of Renewable Energy and Molecular Engineering Shaoxing312000China

Hard carbon(Hc)is widely used in sodium-ion batteries(SIBs),but its performance has always been limited by lowinitial coulombic efficiency(IcE)and cycling *** compensation agent is a favorable strategy to make up for the loss of active sodium ions consumed *** it lacks agent that effectively decomposes to increase the active sodium ions as well as regulate carbon defects for decreasing the irreversible sodium ions ***,we propose 1,2-dihydroxybenzene Na salt(NaDB)as a cathode compensation agent with high specific capacity(347.9 mAh g^(-1)),lower desodiation potential(2.4–2.8 V)and high utilization(99%).Meanwhile,its byproduct could functionalize Hc with more c=o groups and promote its reversible ***,the presodiation hard carbon(pHc)anode exhibits highly reversible capacity of 204.7 mAh g^(-1) with 98%retention at 5 c rate over 1000 ***,with 5 wt%NaDB initially coated on the Na3V2(Po4)3(NVP)cathode,the capacity retention of NVP + NaDB|Hc cell could increase from 22%to 89%after 1000 cycles at 1 c *** work provides a new avenue to improve reversible capacity and cycling performance of SIBs through designing functional cathode compensation agent.

关键词： Hard carbon IcE cathode compensation agent Reversible capacity Stability

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu wu Qi chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China china University of Petroleum Beijing 102299China

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH_(3)/o_(2)and the production of N_(2)/H_(2)change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH_(3)by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for oH and o(1S).However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also hel

关键词： Nanosecond pulsed discharge Ammonia oxidative pyrolysis Fluid model Global model

Enhanced dynamics of Al3+/H+ ions in aqueous aluminum ion batteries:construction of metastable structures in vanadium pentoxide upon oxygen vacancies

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Journal of Energy chemistry 2025年第2期101卷 562-569页

作者： Zhibao Wang Hanqing Gu Tianci wu Wenming Zhang Zhanyu Li Hebei Key Laboratory of optic-Electronic Information and Materials National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices College of Physics Science and Technology Hebei University

In recent years,aqueous aluminum ion batteries have been widely studied owing to their abundant energy storage and high theo retical *** in-depth study of vanadium oxide materials is necessary to address the precipitation of insoluble products covered cathode surface and the slow reaction ***,a method using a simple one-step hydrothermal preparation and oxalic acid to regulate oxygen vacancies has been reported.A high starting capacity(400 mAh g-1) can be achieved by ov-V2o5,and it is capable of undergoing 200 cycles at 0.4 A g-1,with a termination discharge capacity of103 mAh *** analysis demonstrated that metastable structures（AlxV2o5and HxV2o5） were constructed through the insertion of Al3+/H+during discharging,which existed in the lattice intercalation with *** incorporation of oxygen vacancies lowers the reaction energy barrier while improving the ion transport *** addition,the metastable structure allows the electrostatic interaction between Al3+and the main backbone to establish protection and optimize the transport *** parallel,this work exploits ex-situ characterization and DFT to obtain a profound insight into the instrumental effect of oxygen vacancies in the construction of metastable structures during in-situ electrochemical activation,with a view to better understanding the mechanism of the synergistic participation of Al3+and H+in the *** work not only reports a method for cathode materials to modulate oxygen vacancies,but also lays the foundation for a deeper understanding of the metastable structure of vanadium oxides.

关键词： Electrochemical activation Metastable structure oxygen vacancies Vanadium pentoxide

Biogenic emission as a potential source of atmospheric aromatic hydrocarbons:Insights from a cyanobacterial bloom-occurring eutrophic lake

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Journal of Environmental Sciences 2025年第5期151卷 497-504页

作者： Hua Fang Ting wu Shutan Ma Yuqing Miao Xinming Wang School of Ecology and Environment Anhui Normal UniversityWuhu 241000China center of cooperative Innovation for Recovery and Reconstruction of Degraded Ecosystem in Wanjiang city Belt Wuhu 241000China School of Geography and Tourism Anhui Normal UniversityWuhu 241000China State Key Laboratory of organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China cAS center for Excellence in Deep Earth Science Guangzhou 510640China

As important precursors of ozone(o_(3))and secondary organic aerosol(SoA),reactive aromatic hydrocarbons(AHs)have typically been classified as anthropogenic air ***,biogenic emission can also be a potential source of atmospheric ***,field observations in a eutrophic lake were combined with laboratory incubation experiments to investigate the biogenic AH *** work showed that the water-air fluxes of AHs measured at sites with high cyanobacteria abundance could reach an order of magnitude greater than those at sites with low cyanobacteria abundance,suggesting that cyanobacteria could be the important contributor to measured *** incubation experiments further confirmed the AH emission of cyanobacteria and revealed that the emission could change significantly over the lifespan of cyanobacteria and varied to their growing *** combining field observations and laboratory incubation experiments,it has been suggested that the emission of different AH species from cyanobacteria could be modulated by variable biogeochemical mechanisms and that the biochemical process of toluene could be different from that of other *** study investigates AH emissions from inland aquatic ecosystem and suggests that biogenic emission could be a potential source of atmospheric AHs.

关键词： Aromatic hydrocarbons Biogenic emission Eutrophic lake cyanobacteria Biosphere-atmosphere exchange