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Established and emerging organophosphate esters (OPEs) and the expansion of an environmental contamination issue: A review and future directions

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Journal of Hazardous Materials 2023年第1期459卷 132095页

作者： Ye, Langjie Li, Jianhua Gong, Shuai Herczegh, Sofia M. Zhang, Qi Letcher, Robert J. Su, Guanyong Key Laboratory of Environmental Remediation and Ecological Health Ministry of Industry and Information Technology School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China Ecotoxicology and Wildlife Health Division Wildlife and Landscape Directorate Science and Technology Branch Environment and Climate Change Canada National Wildlife Research Centre Carleton University OttawaON Canada Department of Chemistry Carleton University OttawaON Canada

The list of organophosphate esters (OPEs) reported in the environment continues to expand as evidenced by the increasing number of OPE studies in the literature. However, there remains a general dearth of information on more recently produced and used OPEs that are proving to be emerging environmental contaminants. The present review summarizes the available studies in a systematic framework of the current state of knowledge on the analysis, environmental fate, and behavior of emerging OPEs. This review also details future directions to better understand emerging OPEs in the environment. Firstly, we make recommendations that the current structural/practical abbreviations and naming of OPEs be revised and updated. A chemical database (CDB) containing 114 OPEs is presently established based on the suspect list from the current scientific literature. There are 12 established OPEs and a total of 83 emerging OPEs that have been reported in human and/or biota samples. Of the emerging OPEs more than 80% have nearly 100% detection frequencies in samples of certain environmental media including indoor air, wastewater treatment plants, sediment, and fish. In contrast to OPEs considered established contaminants, most emerging OPEs have been identified more recently due to the more pervasive use of high-resolution mass spectrometry (HRMS) based approaches and especially gas or liquid chromatography coupled with HRMS-based non-target analysis (NTA) of environmental sample fractions. Intentional/unintentional industrial use and non-industrial formation are sources of emerging OPEs in the environment. Predicted physical-chemical properties in silico of newer, molecularly larger and more oligomeric OPEs strongly suggest that some compounds such as bisphenol A diphenyl phosphate (BPA-DPP) are highly persistent, bioaccumulative and/or toxic. Limited information on laboratory-based toxicity data has shown that some emerging OPEs elicit harmful effects such as cytotoxicity, development

关键词： Mammals

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Photodegradation of 2-(2-hydroxy-5-methylphenyl) benzotriazole(UV-P) in coastal seawaters: Important role of DOM

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Journal of environmental sciences 2019年第11期31卷 129-137页

作者： Xi Chen Jieqiong Wang Jingwen Chen Chengzhi Zhou Feifei Cui Guoxin Sun Key Laboratory of Industrial Ecology and Environmental Engineering (MOE) School of Environmental Science and Technology Dalian University of Technology

Benzotriazole UV stabilizers (BT-UVs) have attracted concems due to their ubiquitous occurrence in the aquatic environment,and their bioaccumulative and toxic ***,little is known about their aquatic environmental degradation *** this study,photodegradation of a representative of BT-UVs,2-(2-hydroxy-5-methylphenyl) benzotriazole (UV-P),was investigated under simulated sunlight *** show that UV-P photodegrades slower under neutral conditions (neutral form) than under acidic or alkaline conditions (cationic and anionic forms).Indirect photodegradation is a dominant elimination pathway of UV-P in coastal *** organic matter (DOM) from seawaters accelerate the photodegradation rates mainly through excited triplet DOM (3DOM*),and the roles of singlet oxygen and hydroxyl radical are negligible in the *** from seawaters impacted by mariculture exhibits higher steady-state concentration of 3DOM*([3DOM*]) relative to those from pristine seawaters,leading to higher photosensitizing effects on the *** ions inhibit the DOM-sensitized photodegradation of UV-P by decreasing [3DOM*].Photodegradation half-lives of UV-P are estimated to range from 24.38 to 49.66 hr in field water bodies of the Yellow River *** results are of importance for assessing environmental fate and risk UV-P in coastal water bodies.

关键词： Benzotriazole UV stabilizers Photodegradation Dissolved organic matter Coastal seawaters

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Kinetic Modeling of Secondary Organic Aerosol in a Weather-Chemistry Model: Parameterizations, Processes, and Predictions for GOAmazon

ACS ES&T Air

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ACS ES&T Air 2025年第2期2卷 249-263页

作者： Yicong He Kelsey R. Bilsback Manish Shrivastava Rahul A. Zaveri John E. Shilling John H. Seinfeld Bin Zhao Shuxiao Wang Christopher D. Cappa Jeffrey R. Pierce Shantanu H. Jathar Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States；State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China；State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States；PSE Healthy Energy Oakland California 94612 United States Pacific Northwest National Laboratory Richland Washington 99354 United States Divison of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China；State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China Department of Atmospheric Science Colorado State University Fort Collins Colorado 80521 United States Department of Civil and Environmental Engineering University of California Davis Davis California 95616 United States Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States

Secondary organic aerosol (SOA) forms and evolves in the atmosphere through many pathways and processes, over diverse spatial and time scales. Hence, there is a need to represent these widely varying kinetic processes in large-scale atmospheric models to allow for accurate predictions of the abundance, properties, and impacts of SOA. In this work, we integrated a kinetic, process-level model (simpleSOM-MOSAIC) into a weather-chemistry model (WRF-Chem) to simulate the oxidation chemistry and microphysics of atmospheric SOA. simpleSOM-MOSAIC simulates multigenerational gas-phase chemistry, autoxidation reactions, aqueous chemistry, heterogeneous oxidation, oligomerization, and phase-state-influenced gas/particle partitioning of SOA. As a case study, the integrated WRF-Chem-simpleSOM-MOSAIC (WC-SSM) model was used to simulate the photochemical evolution downwind of a large city (Manaus, Brazil) in the Amazon and, in turn, study the anthropogenic and biogenic interactions in an otherwise pristine environment. Consistent with previous work, we found that OA was enhanced by up to a factor of 4 in the urban plume due to elevated hydroxyl radical (OH) concentrations, relative to the background, and that this OA was dominated by SOA from biogenic precursors (80%). In addition to accurately simulating the OA enhancement in the urban plume, the model reproduced the magnitude of the OA oxygen-to-carbon (O:C) ratio and broadly tracked the evolution of the aerosol number size distribution. Our work highlights the importance of including an integrated, kinetic representation of SOA processes in an atmospheric model.

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Electrochemical oxidation of chloramphenicol by modified Sm-PEG-PbO2 anodes: Performance and mechanism

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Chemosphere 2023年第1期327卷

作者： Zhang, Chaoyang Gao, Conghao Yang, Shumin He, Xin Chen, Yue Qin, Xiao Tang, Yulin State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science & Engineering Tongji University Shanghai200092 China Key Laboratory of Water Supply Water Saving and Water Environment Treatment for Towns in the Yangtze River Delta Ministry of Water Resources Shanghai200092 China Hebei Haikuo Environmental Protection Technology Co. LTD Baoding071000 China

Chloramphenicol (CAP) is used extensively in industry and daily life, but its abuse has seriously affected the environment and public health. In this paper, a new composite PbO2 electrode was obtained through the modification Sm and polyethylene glycol (PEG), and an electrocatalytic oxidation technology of CAP degradation was investigated. The results showed that the catalytic degradation ability and industrial service life of the PEG-Sm-PbO2 composite electrode were significantly enhanced. Co-doping inhibited the growth of grains, resulting in the formation of refined pyramidal grains on the surface of the electrode, which increased the number of active spots. The industrial service life of the modified electrode was improved by 87.0%. In addition, the degradation effect under different conditions and mechanism of CAP were also explored. The optimal conditions for CAP degradation were explored, at which time the CAP degradation rate reached 99.1%. The degradation process was in accordance with the primary reaction kinetics, and the apparent rate constant of CAP at the PEG-Sm-PbO2 electrode was raised by 57.1% in comparison with the unmodified electrode, indicating that the modification facilitated the degradation of CAP in the electrode. Finally, two possible CAP degradation pathways were deduced. The results will provide technical support and a theoretical basis for the degradation of persistent organic pollutants. © 2023 Elsevier Ltd

关键词： Degradation

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Micropores can enhance intrinsic fracture energy of hydrogels

arXiv

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arXiv 2024年

作者： Cao, Puyu Chen, Bin Cao, Yi Gao, Huajian Department of Engineering Mechanics Zhejiang University Hangzhou China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Hangzhou China School of Physics Nanjing University Nanjing China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control School of Environmental Science and Engineering Nanjing University of Information Science & Technology Nanjing210044 China Mechano-X Institute Applied Mechanics Laboratory Department of Engineering Mechanics Tsinghua University Beijing100084 China

It is widely known that hydrogels, a class of soft materials made of a polymer chain network, are prone to fatigue failure. To understand the underlying mechanism, here we simulate polymer scission and fatigue initiation in the vicinity of a crack tip in a two-dimensional chain network. For a network without pores, our findings reveal that polymer scission can take place across multiple layers of chains, rather than just a single layer as assumed in the classical Lake-Thomas theory, in consistency with previus studies. For a network with a high density of micropores, our results demonstrate that the pores can substantially enhance the intrinsic fracture energy of the network in direct proportion to the pore size. The underlying mechanism is attributed to pore-pore interactions which lead to a relatively uniform distribution of cohesive energy ahead of the crack tip. Our model suggests that micropores could be a promising strategy for improving the intrinsic fracture energy of hydrogels and that natural porous tissues may have evolved for enhanced fatigue resistance. Copyright © 2024, The Authors. All rights reserved.

关键词： Crack tips

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Techno-Economic Analysis of Small-Scale Ammonia Production Via Sorption-Enhanced Gasification of Biomass

SSRN

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SSRN 2024年

作者： Dziva, Godknows Luan, Chuanbao Ding, Guangchao Boré, Abdoulaye Kouakou, Kouame Jean Ives Tembo, Tinashe Ullah, Atta Zaman, Muhammad Li, Songgeng Zeng, Liang Key Laboratory for Green Chemical Technology Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin300072 China State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Tianjin Key Lab of Biomass/Wastes Utilization School of Environmental Science and Engineering Tianjin University Tianjin300072 China Lehtrar Road P.O. Nilore Islamabad45650 Pakistan

Biomass gasification is a green and efficient pathway for lowering the carbon footprint of ammonia production. Decentralized, small-scale biomass gasification plants ( © 2024, The Authors. All rights reserved.

关键词： Ammonia

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Quantifying Energy Consumption and Trade in Kyrgyzstan Based on Energy-extended Input-output Model 2021

Quantifying Energy Consumption and Trade in Kyrgyzstan Based...

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2021 3rd International Conference on E-Business and E-commerce engineering

作者： hao zhang yongping li jing liu guohe huang lianrong chen School of Environmental Science and Engineering Xiamen University of Technology Xiamen University of Technology China School of Environmental Science and Engineering Xiamen University of Technology State Key Laboratory of Water Environment Simulation School of EnvironmentBeijing Normal University Xiamen University of Technology Beijing Normal University China School of Environmental Science and Engineering Xiamen University of Technology Xiamen University of Technology China State Key Laboratory of Water Environment Simulation School of EnvironmentBeijing Normal University Xiamen University of Technology China

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reliability evaluation of supercapacitors based on pseudo-failure calendar lifetime distribution

Reliability evaluation of supercapacitors based on pseudo-fa...

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12th International Conference on Quality, reliability, Risk, Maintenance, and Safety engineering (QR2MSE 2022)

作者： P. Yu G. Wang Y. Huang C. Huang G. Lu School of Electric Power Engineering South China University of Technology Guangzhou People's Republic of China Laboratory of Science and Technology on Reliability Physics and Application of Electronic Component China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou People's Republic of China Technology and Planning Office China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou People's Republic of China

Supercapacitors are new types of electrical energy storage components with an electric double layer. Ageing characteristics, lifetime and reliability evaluation are of great significance for quality evaluation and rational use. This paper focused on the pseudo-failure calendar lifetime distribution and reliability evaluation of supercapacitors. High-temperature accelerated calendar ageing test of supercapacitors is carried out, and equivalent series resistance and capacitance were tested. Pseudo-lifetime is calculated and distribution is fitted. Fitting results showed that the pseudo-lifetime of supercapacitors is more in line with Weibull distribution. Finally, the reliability curve and its bounds with 95% confidence are made, as a result of the reliability evaluation of supercapacitors.

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Research on a New Model of Coal Gas Seepage Based on Fracture-Pore Fractal Structure Characteristics

SSRN

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SSRN 2023年

作者： Liu, Zhen Han, Jing Yang, He Lv, Jialu Dong, Shuai College of Safety and Environmental Engineering Shandong University of Science and Technology 579 Qianwangang Rd Huangdao District Qingdao266590 China State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province Ministry of Science and Technology Shandong University of Science and Technology Qingdao266590 China

Coal reservoir is a typical double pore medium, and the magnitude of its permeability is controlled by the parameters of the fracture pore structure. However, the law about the effect of fracture-pore parameters on permeability is not clear yet. Based on the fractal geometry theory, the fracture-pore morphology of coal body is characterized by tree bifurcation network and tortuous capillary bundle. This study also established a coal gas seepage flow model based on the fracture-pore fractal structure characteristics. The model discusses the influence of coal structure parameters, different levels of original coal seam stress, and gas pressure on the gas seepage characteristics. Finally, the applicability of the model was evaluated by gas radial seepage experiment. It is shown that the gas permeability in the model is a function of fractal dimensions and structural parameters, and based on the sensitivity analysis of each parameter in the model, it is found that the tree diameter ratio β and length ratio γ of the bifurcation network have a significant impact on the permeability. When β increases from 0.1 to 0.9, the model permeability increases by 12 orders of magnitude. However, changes in the characteristic parameters of the pore structure have little effect on gas permeability. For dual porous media such as coal, the permeability of the fracture network dominates the overall permeability of the model, and small changes in the geometric structure of the fracture bifurcation network can lead to significant changes in permeability. The construction of this theoretical model provides a reliable basis for further improving coal-rock porous medium structure seepage models, as well as to better characterize the effect of gas drainage. © 2023, The Authors. All rights reserved.

关键词： Gas permeability

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Boosting Spiro-OMeTAD Doping via Structurally Asymmetrical Nanohorns for High-Performance Carbon-Based Perovskite Solar Cells

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Advanced Energy Materials 2025年第0期

作者： Shi, Yanying Meng, Guanghao Wang, Yudi Li, Wenrui Ma, Hongru Wang, Ruiting Li, Siao Zhang, Zhongyuan Tian, Ziyang Li, Yufa Zhang, Linghui Xu, Bingying Liu, Zicheng Feng, Tao Cheng, Jiashuo Liu, Lida Cao, Dequan Tian, Wenming Shi, Yantao State Key Laboratory of Fine Chemicals School of Chemistry Frontier Science Center for Smart Materials Dalian University of Technology Dalian116024 China Yunnan Key Laboratory of Modern Separation Analysis and Substance Transformation College of Chemistry and Chemical Engineering Key Laboratory of Education Ministry for Advance Technique and Preparation of Renewable Energy Materials Yunnan Normal University Kunming650500 China State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian116023 China

The doping level of 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro-OMeTAD), a commonly used hole transport layer in perovskite solar cells (PSCs), is crucial for its electrical conductivity and the final photovoltaic performance. The routine oxygen-oxidation doping strategy falls short in achieving high-level doping due to the sparsity and random distribution of dopants within the solid Spiro-OMeTAD film. Here the use of carbon nanohorns (CNH) as a promoter to significantly enhance the doping level of Spiro-OMeTAD is reported. The unique asymmetry and polar structure of CNH not only enable effective charge transfer between CNH and Spiro-OMeTAD, also exhibit confinement effect to trap Li+ ions and O2, promoting the consecutive chemical doping processes. Corresponding carbon-based PSCs achieved a power conversion efficiency of 23.24% (22.51% certified), and demonstrated exceptional long-term durability, retaining 95.3% of the initial PCE (power conversion efficiency) after 1500 h of tracking at maximum power point (MPP) under 100 mW cm−2 illumination. © 2025 Wiley-VCH GmbH.

关键词： Perovskite solar cells

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