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Sensitive Detection of Acoustic Vibration at Nanometer Scale

ACS Sensors 2025年

作者： Liu, Hanyu Ma, Jinling Xie, Mingcai Yang, Weiqing Wan, Sushu Hong, Daocheng Wei, Zhihong Tian, Yuxi State Key Laboratory of Analytical Chemistry for Life Science Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical Engineering Nanjing University Nanjing210023 China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China Department of Forensic Science and Technology Zhengzhou Police University Henan Zhengzhou450000 China

The detection of vibrations at nanometer scale is crucial for a variety of applications. The spatial resolution of acoustic detection is limited to micrometers due to its long wavelength. Single-molecule probes with a gold nanorod (GNR) have been proposed to detect an acoustic wave at the nanometer scale at room temperature. However, the detection efficiency is extremely low due to the random distribution of probe molecules and GNRs, and the detection can be used only in solid phases. In this work, we chemically linked the GNR and probe molecules using dsDNA, which provided precise distance control. Compared to the previous work, the detection sensitivity was improved by 2 orders of magnitude, approaching the theoretical detection limit, and the detection efficiency was improved from below 1% to over 95%. Furthermore, such a dsDNA connection allows sensitive detection of acoustic wave under water by a single nanodetector for "listening" to musical sounds covering two octaves. These results suggest that our achievement in precise distance control represents a significant step toward the practical application of single molecule detection of acoustic wave. © 2025 American Chemical Society.

关键词： Probes

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A comprehensive review of dredged marine sediments -multiple roles of utilization in cement-based materials and construction products

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Marine Pollution Bulletin 2025年 217卷 118079页

作者： Ma, Jian Sun, Jinfeng Yu, Zhuqing Hou, Guihua Xia, Bingjie Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China College of Materials Science and Engineering Nanjing Tech University Nanjing211816 China State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing211816 China College of Marine and Bioengineering Yancheng Institute of Technology Yancheng224051 China

Dredged marine sediments (DMS), produced during harbor maintenance and waterway development, pose significant environmental and disposal challenges. Increasingly, research has focused on their potential reuse in construction materials, offering a sustainable alternative to waste disposal and promoting resource conservation. This paper provides a comprehensive review of the potential application of DMS in cementitious systems, exploring their multiple roles as alternative binders or aggregates in sustainable practices. key properties and treatment methods of DMS are summarized, and the mechanical and durability of DMS-incorporated materials are critically evaluated, highlighting their suitability and challenges. The carbon emissions of DMS blended cement are calculated and found to be 16.58 % lower than those of OPC. Further research is needed to standardize processing techniques, evaluate long-term performance, and facilitate large-scale adoption in sustainable construction. © 2025 Elsevier Ltd

关键词： Wastewater disposal

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Surface catalytic degradation of ciprofloxacin by ferrihydrite sulfidation under ambient conditions

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environmental Pollution 2025年 371卷 125945页

作者： Chen, Xiru Bai, Lihua Li, Hongjian Wang, Xinhao Wang, Chao Fang, Yanfen Gu, Cheng State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China Key Laboratory of Environmental Remediation and Ecological Health Ministry of Industry and Information·Technology Jiangsu Province Ecology and Environment Protection Engineering Research Center of Groundwater Pollution Prevention and Control Jiangsu Environmental Engineering Technology Co. Ltd. Nanjing210019 China College of Materials and Chemical Engineering China Three Gorges University Hubei Yichang443002 China

Dissolved sulfide (S(-II)) is abundant in sediments and capable of initiating the sulfidation reactions of iron-bearing minerals, in which the reaction mechanisms have been well documented. However, the impact of the S(-II)/Fe concentration ratio on reactive oxygen species (ROS) formation and the fate of co-existing contaminants upon iron-bearing minerals sulfidation under ambient conditions remains inadequately explored. Herein, the transformation of ciprofloxacin (CIP) by ferrihydrite sulfidation under ambient conditions was systematically investigated. Our findings indicated that the rate of CIP degradation initially increased with rising S(-II)/Fe concentration ratios, but subsequently decreased as the ratio continued to elevate. Evidence from electron paramagnetic resonance, molecular probing and quenching experiments revealed that the superoxide anion radical (O2•-), primarily produced from the reaction between O2 and surface-bound Fe(II), was the dominant contributor to the accelerated transformation of CIP. Upon being attacked by ROS, CIP underwent degradation via carboxyl substitution, defluorination, hydroxylation, piperazine ring ketonization and piperazine ring cleavage. Additionally, common water quality factors, i.e., pH, natural organic matter (NOM) and inorganic anions could also significantly influence the degradation processes of CIP during ferrihydrite sulfidation under ambient conditions. This research offers valuable insights into the significant function of mineral sulfidation in facilitating the formation and reactivity of ROS, which sheds light on enhanced elimination of organic contaminants in sediments. © 2025 Elsevier Ltd

关键词： Reactive oxygen species

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Low-Ir-Content Ir0.10Mn0.90O2 Solid Solution for Highly Active Oxygen Evolution in Acid Media

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Small 2025年 e2412096页

作者： Hu, Hongyan Liu, Shilong Sun, Hongfei Sun, Wenli Tang, Jike Wei, Lingzhi Chen, Xiaowei Chen, Qianwang Lin, Yichao Tian, Ziqi Su, Jianwei Anhui University Hefei230601 China Zhejiang Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China School of Material Science and Engineering Key Laboratory for Ecological-Environment Materials of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China Hefei National Laboratory for Physical Science at Microscale Department of Materials Science & Engineering University of Science and Technology of China Hefei230026 China

Iridium (Ir)-based materials are the most widely used oxygen evolution reaction (OER) electrocatalysts in proton exchange membrane water electrolysis (PEMWE). However, their commercial application suffers from high cost and insufficient activity. To optimize the atom utilization efficiency of Ir, the aim is to engineer and develop a rutile-structured solid solution catalyst with minimal Ir content, which is identified through a phase boundary. Here, Ir0.10Mn0.90O2 represents the lowest Ir content in the desired IrO2-MnO2 solid solution. The Ir0.10Mn0.90O2 catalyst exhibits outstanding OER performance in acidic electrolytes, reaching a remarkable mass activity of 1135 A g−1Ir at an overpotential of 300 mV, which is ≈50 times higher than that of a commercial IrO2 catalyst. Additionally, it demonstrates excellent stability at a current density of 200 mA cm−2 over 120 h during PEMWE operations. Density functional theory (DFT) calculations indicate that the hydroxylation process can be efficiently promoted by the electron-withdrawing on Ir sites in Ir0.10Mn0.90O2, contributing to the enhancement of OER activity. © 2025 Wiley-VCH GmbH.

关键词： Hydroxylation

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Properties of Mno2 and Mn-Based Perovskite Oxides for So2 Captures Under Controlled Temperature and Atmosphere

SSRN

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SSRN 2025年

作者： Xu, Xuanwen Wang, Shuying Shi, Jingwen Yang, Liduo Lu, Yuehao Shiyi, Fengzhang Lu, Yulian Wu, Pengyu Fan, Lele Jiang, Ruiyu Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China School of Chemistry and Chemical Engineering Yancheng Institute of Technology Yancheng224051 China School of Mechanics and Safety Engineering Zhengzhou University 100 Kexue Road Henan Zhengzhou450001 China

The sulfur dioxide (SO2) is produced in considerable amounts as an air pollutant during the combustion of fossil fuels. Oxidation capture of SO2 based on metal oxides is a promising strategy for purifying the flue gas. In this work, we synthesized MnO2 and perovskite AMnO3 (A= Mg, Ca, Sr and Ba) adsorbents, through hydrothermal and solid state reactions, for the oxidation captures of SO2. The optimized conditions including temperatures (5-800 °C) and atmospheres (N2, O2, CO2, CO) were performed on the synthesized adsorbents for studying the properties of SO2 removals. The results indicated MnO2 exhibited excellent performances of SO2 removals in regardless of the presence of O2 because of the strong oxidability (400 °C, breakthrough time: 80 vs. 120 min). AMnO3 adsorbents worked effectively only with the existence of O2 in the atmosphere (400 °C, breakthrough time: 0 vs. 40 min). The catalytic oxidation of CO strongly occurred on the surfaces of MnO2 over 400 °C, causing dramatic drops of SO2 capture abilities (breakthrough time: 0 vs. 120 min). AMnO3 (A= Ca and Sr) adsorbents showed better abilities in the anti-toxication to the catalytic oxidation of CO. The abilities of SO2 captures started to decrease when the temperature reached 700 °C. © 2025, The Authors. All rights reserved.

关键词： Sulfur dioxide

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The interpretable deep learning-based coke quality prediction strategy aligned with domain knowledge for sustainable smart cokemaking applications

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Fuel 2025年 398卷

作者： Qiu, Yuhang Hui, Yunze Zhao, Pengxiang Dou, Jinxiao Bhattacharya, Sankar Dai, Baiqian Yu, Jianglong Faculty of Engineering Monash University Wellington Road ClaytonVIC3800 Australia Suzhou Industrial Park Monash Research Institute of Science and Technology SIP Jiangsu Suzhou215028 China School of Energy and Environment Southeast University Sipailou Jiangsu Nanjing210018 China Key Laboratory for Advanced Coal and Coking Technology of Liaoning Province and School of Chemical Engineering University of Science and Technology Liaoning Anshan114051 China

Accurate prediction of coke quality is critical for optimizing coal blending schemes to improve the efficiency of the coke production process, thereby reducing energy consumption and CO2 emissions to advance the coking industry towards carbon neutrality. However, existing prevalent prediction methods of coke quality, primarily based on black-box Artificial Neural Networks (ANNs), have poor interpretability. They often learn spurious correlations that contradict fundamental cokemaking behaviors, degrading model performance and making them untrustworthy for practical applications. In pursuit of trustworthy smart cokemaking, this study is the first to propose an interpretable neural network model aligned with domain knowledge for Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) prediction. 422 Chinese coal samples were collected for analysis, with coking coals composed of 18 properties and coal blends composed of 7 properties. Based on established domain knowledge of the cokemaking process, important coal properties whose importance contradicted domain knowledge in the original ANN model were identified with the SHapley Additive exPlanations (SHAP) algorithm and corrected using the proposed Contextual Decomposition Regression Explanation (CDRE) algorithm. Experimental results demonstrate that the optimized ANN aligned with domain knowledge provides more reasonable feature importance and lower prediction error in coking coals and coal blends. The model can also reasonably analyze the reasons behind some coal samples producing low-quality coke. The learned high-level representations of coal samples from the optimized ANN exhibited a wider distribution, allowing for better differentiation of their disparities. Moreover, the coefficient value of the loss function and the number of network layers were identified as critical factors influencing model performance. The findings of this study provide a feasible solution for interpretable coke quality predictio

关键词： Coke manufacture

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Fine-Grain Strengthened Vanadium-Based Electrocatalysts via Recrystallization Maneuver for Lithium-Sulfur Batteries

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advanced Functional Materials 2025年

作者： Wang, Kuiyou Wang, Chensheng Xu, Hechao Zhao, Bo Zhang, Yunfeng Cai, Wenlong Song, Lixian Sun, Jingyu Song, Yingze State Key Laboratory of Environment-Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology Mianyang621010 China School of Mechatronic Engineering Shanxi Datong University Datong037003 China Department of Advanced Energy Materials College of Materials Science and Engineering Sichuan University Chengdu610064 China College of Energy Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou215006 China

The rational design of abundant and efficient active sites for lithium-sulfur electrocatalysis remains a long-standing challenge, wherein the optimization of catalyst activity by manipulating their sizes has stimulated extensive exploration. Herein, a fine-grain strengthening strategy is proposed for a vanadium-nitrogen-carbon (VNC) catalyst comprising active vanadium (V)-based units, throughout modulating the size and surface energy via salt-template recrystallization. The recrystallization frequency is dictated to precisely tune the fine-grain strengthening effect. Through a rigorous procedure of 5-time recrystallization, V-based units realize the size reduction from 209 to 99 Å, the surface energy increase from 0.16 to 0.32 eV Å−2, along with the specific surface area adjustment from 41.5 to 206.3 m2 g−1. Accordingly, the fine-grain strengthening effect effectively activates the V-based units in i) enhancing sulfur species adsorption and propelling Li2S nucleation/decomposition reaction kinetics;ii) guiding high-flux and uniform lithium-ions and thus promoting lithium plating/stripping behaviors. Consequently, the battery demonstrates an initial discharge capacity of 1236.4 mA h g−1 at 0.2 C. Even after 600 cycles at 2.0 C, the cycle-to-cycle attenuation is merely 0.048%. Furthermore, a pouch cell with a fine-grain strengthened VNC catalyst can proceed a stable cycling operation at 1.0 C, ensuring a reliable and consistent power supply for electronic gadgets. © 2025 Wiley-VCH GmbH.

关键词： Lithium sulfur batteries

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Rare earth element-doped porous In_(2)O_(3) nanosheets for enhanced gas-sensing performance

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Rare Metals 2021年第6期40卷 1662-1668页

作者： Wen-Hui Zhang Su-Jun Ding Qing-Song Zhang Hui Yi Zi-Xiang Liu Meng-Li Shi Kong-Feng Guan Lu Yue Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYancheng 224051China

Rare earth(La,Pr,Sm,Ce and Yb)-doped porous In_(2)O_(3) nanosheets are prepared by a solvothermal *** effect of rare earth elements on the structure,morphologies and gas-sensing performance of In_(2)O_(3) nanosheets is systematically *** mixed phase composed of c-In_(2)O_(3) and rh-In_(2)O_(3) can be transformed into rh-In_(2)O_(3) by doping with rare earth *** doping with rare earth elements,the morphology can be changed from compact nanosheets to porous *** with pure In_(2)O_(3) and La,Pr,Sm,Ce-doped porous In_(2)O_(3) nanosheets,Yb-doped In_(2)O_(3) nanosheets present the best gas-sensing *** 3%-10%Yb-doped samples,6%Yb-doped In_(2)O_(3) porous nanosheets exhibit the optimal gas-sensing performance to 5×10^(-6)-750×10^(-6) acetone,giving a high response of 15.3 toward 50×10^(-6) acetone and fast response/recovery time at the operating temperature of 220℃.Moreover,6% Yb-doped porous In_(2)O_(3) nanosheet sensor also exhibits excellent selectivity and stability,indicating its potential in the nextgeneration gas sensor.

关键词： In_(2)O_(3) Doping Rare earth elements Gas sensor Acetone

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Tartaric acid-assisted synthesis and acetone gas sensing properties of hierarchical WO 3 phase junctions

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Sensors and Actuators B: Chemical 2025年 441卷

作者： Bohao Liu Daocheng Hong Lin Li Tianci Su Luping Che XiuLi Yang Ning Xu Lu Yue Wenhui Zhang Department of Physics Yancheng Institute of Technology Jiangsu 224051 China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Jiangsu 224051 China

Acetone is a hazardous substance that can directly impact vital human organs. Accurate detection is crucial for ensuring air quality, monitoring the environment, and conducting medical diagnostics. Herein, hierarchical WO 3 phase junctions assembled with nanoparticals and nanosheets were synthesized by a simple tartaric acid-assisted hydrothermal method. The morphology, phase, and band gap of WO 3 are influenced by the use of different chiral tartaric acids (L(+)-tartaric acid, D(-)-tartaric acid, DL-tartaric acid). Compared with the sample prepared with L(+)-tartaric acid, D(-)-tartaric acid, hierarchical WO 3 phase junctions prepared with DL-tartaric acid have the higher exposed crystal faces, and the sensor with this structure shows the highest response ( R a / R g = 162.3), short response/recovery time (16 s/15 s) to 50 ppm acetone, along with low practical detection limit (300 ppb) at the operating temperature of 180 °C. Additionally, it possesses favorable selectivity, satisfactory reproducibility, stability, and resistance to moisture. The reaction process of acetone is revealed using in situ diffuse reflectance infrared fourier transform spectroscopy (DRIFT) and validated through density functional theory (DFT) calculations. Such enhanced acetone sensing mechanism mainly roots from its unique structure, the narrow band gap, high exposed crystal faces, phase junctions and oxygen vacancies. This work provides a novel design method to construct hierarchical WO 3 phase junctions with high gas-sensing performance.

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Fabrication of S-scheme heterojunction consisting of W-doped BiVO 4 and biperovskite Cs 2 AgBiBr 6 for photocatalytic degradation of antibiotics

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Journal of Colloid and Interface Science 2025年

作者： Ze Liu Yadong Hu Chengkai Li Zhenyu Zhang Tingzhe Shen Danni Zeng Rongfeng Guan Changjian Zhou Pengyu Dong Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Jiangsu China School of Chemistry and Chemical Engineering Yancheng Institute of Technology Jiangsu China

Photocatalysis technology can degrade organic pollutants in wastewater, improving the ecological environment and protecting biodiversity. The BiVO 4 stable chemical properties of BiVO 4 make it a robust candidate for photochemical applications. Moreover, its broad light absorption spectrum and optimal band structure further enhance its potential, driving widespread research interest. The introduction of the eco-friendly biperovskite Cs 2 AgBiBr 6 enhanced BiVO 4 ′s surface area and visible light absorbance. Simultaneously, the doping process introduces impurities that modify charge transfer pathways, thereby enhancing the separation efficiency of photogenerated electron-hole pairs. When contrasted with pure BiVO 4 , the W-BiVO 4 /Cs 2 AgBiBr 6 composite demonstrates superior surface area characteristics and exhibits stronger absorption within the visible light spectrum. Within 40 min after exposure to visible light, the efficiency of W-BiVO 4 /Cs 2 AgBiBr 6 photocatalyst to degrade ofloxacin (OFX) and meloxicam (MEL) was 93.15 % and 92.70 %, respectively. Based on the toxicity analyses and antimicrobial assays simulated by the software, no highly toxic substances were found in the degradation intermediate products of OFX and MEL. The catalysts’ energy band structure and photoelectrochemical properties showed that W-BiVO 4 /Cs 2 AgBiBr 6 followed the S-scheme heterojunction charge transfer mechanism. By integrating BiVO 4 with other semiconductors in the form of S-scheme heterojunctions, this study explores a strategy that may effectively improve photocatalytic efficiency, particularly in pollutant degradation applications.

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