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Exposure and risk assessment of organophosphorus pesticides in brinjal and tomato of Coimbatore District, Tamil Nadu, India

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environmental Monitoring and Assessment 2025年第4期197卷 1-14页

作者： S, Arun Bala Sathish, Asha Nithya, K. Kumar, P. Senthil Rangasamy, Gayathri Department of Sciences Amrita Vishwa Vidyapeetham Coimbatore India Department of Chemical Engineering & Materials Science Amrita Vishwa Vidyapeetham Coimbatore India Amrita Vishwa Vidyapeetham Coimbatore India Centre for Pollution Control and Environmental Engineering School of Engineering and Technology Pondicherry University Kalapet Puducherry605014 India Department of Civil Engineering Faculty of Engineering Karpagam Academy of Higher Education Pollachi Main Road Eachanari Post Tamil Nadu Coimbatore641021 India

The current work gives a snapshot of pesticide residuals, their exposure levels, and the associated potential risks of some organophosphates in Coimbatore district, Tamil Nadu. The study has significant viewpoints on food safety and pesticide management. The pesticide residual analysis was carried out on two commonly used vegetables, tomato and brinjal. The QuEChERS method is used to extract pesticides and GC–MS/SIM analyses were used to quantify pesticide residues. Among the various samples tested, organophosphorus pesticides, such as Phorate Sulfoxide, Chlorpyrifos, and Malathion, were detected in some samples. In the majority of brinjal samples analyzed, no pesticide residues were detected. However, one sample showed the presence of malathion (0.001 mg/kg). The detected level of malathion was within the acceptable safety limits, indicating that the sample is safe for consumption. Nevertheless, in one of the tomato samples tested, the residual level of phorate sulfoxide (0.34 mg/kg) is found to be higher than the MRL with a health risk index of 2.79. Except for phorate sulfoxide, all the other pesticide residuals were within MRL. Phorate residues with a soil half-life of 2 to 173 days are readily water soluble and may leach easily into groundwater, adversely affecting human health. The dietary risk of phorate can also put people at increased health risks of reproductive harm, endocrine system disruption, neurological damage, and an increased risk of certain cancers. The study’s outcome suggests the need to review the strict guidelines imposed on using unsafe pesticides. Also, future investigations are necessary to validate the presence of other toxic pesticides in the study area. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025.

关键词： Fruits

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Selectivity control of photocatalytic CO_(2) reduction over ZnS-based nanocrystals:A comparison study on the role of ionic cocatalysts

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Journal of Energy Chemistry 2023年第11期86卷 391-398,I0009页

作者： Hong Pang Fumihiko Ichihara Xianguang Meng Lijuan Li Yuqi Xiao Wei Zhou Jinhua Ye Hebei Provincial Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and TechnologyTangshan 063210HebeiChina International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS)Tsukuba 305-0044Japan Center for Green Research on Energy and Environmental Materials(GREEN) National Institute for Materials Science(NIMS)Tsukuba 305-0044Japan Department of Applied Physics School of ScienceTianjin UniversityTianjin 300072China Graduate School of Chemical Sciences and Engineering Hokkaido UniversitySapporo 060-0814Japan

Taking copper doped ZnS(ZnS:Cu)nanocrystals as the main body of photocatalyst,the influence of different base transition metal ions(M^(2+)=Ni^(2+),Co^(2+),Fe^(2+)and Cd^(2+))on photocatalytic CO_(2)reduction in inorganic reaction system is *** single-atom Ni^(2+),Co^(2+),and Cd^(2+)sites were created via cation-exchange process and enhanced CO_(2)reduction,while Fe^(2+)suppressed the photocatalytic activity for both water and CO_(2)*** modified ZnS:Cu photocatalysts(M/ZnS:Cu)demonstrated tunable product selectivity,with Ni^(2+)and Co^(2+)showing high selectivity for syngas production and Cd^(2+)displaying remarkable formate *** calculations indicated favorable H adsorption free energy on Ni^(2+)and Co^(2+)sites,promoting the hydrogen evolution *** selectivity of CO_(2)reduction products was found to be sensitive to the initial intermediate adsorption states.*COOH formed on Ni^(2+)and Co^(2+)while*OCHO formed on Cd^(2+),favoring the production of CO and HCOOH as the main products,*** work provides valuable insights for developing efficient solar-to-fuel platforms with controlled CO_(2)reduction selectivity.

关键词： CO_(2) reduction Photocatalysis Zns Ionic cocatalyst Formate Syngas DFT calculations

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Facile fabrication of amorphous Al/Fe based metal–organic framework as effective heterogeneous fenton catalyst for environmental remediation

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environmental Geochemistry and Health 2024年第5期46卷 1-13页

作者： Kulandaivel, Thirumoorthy Subhramaniyan Rasappan, Akshaya Venkatesan Savunthari, Kirankumar Samuel, Melvin S. Kumar, Mohanraj Dahms, Hans-Uwe Anbalagan, Aswin Kumar Mohan, Gopalakrishnan Kheawhom, Soorathep Ganesan, Sivarasan Department of Chemistry Saveetha School of Engineering SIMATS Chennai602 105 India Department of Physics Coimbatore Institute of Technology Coimbatore641014 India Department of Chemistry and Chemical Biology Northeastern University BostonMA02115 United States Department of Civil Construction and Environmental Engineering Marquette University MilwaukeeWI53233 United States Department of Environmental Engineering and Management Chaoyang University of Technology Taichung City413310 Taiwan Department of Biomedical Science and Environmental Biology Kaohsiung Medical University Kaohsiung City807 Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu30013 Taiwan Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand Center of Excellence On Advanced Materials for Energy Storage Chulalongkorn University Bangkok10330 Thailand Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand

This study presents a facile preparation and durable amorphous Fe and Al-based MOF nanoplate (AlFe-BTC MOFs) catalyst with notable stability in Fenton reactions. Rigorous characterization using XRD, HR-TEM, and BET confirms the amorphous nature of the synthesized AlFe-BTC MOFs, revealing mesopores (3.4 nm diameter), a substantial surface area (232 m2/g), and a pore volume of 0.69 cc/g. XPS analysis delineates distinct Al2p and Fe2p binding energy values, signifying specific chemical bonding. FE-SEM elemental mapping elucidates the distinctive distribution of Fe and Al within the framework of AlFe-BTC MOFs. In catalytic activity testing, the amorphous AlFe-BTC MOFs exhibited outstanding performance, achieving complete degradation of Methylene blue (MB) dye and 78% TOC removal over 45 min of treatment under mild reaction conditions. The catalyst's durability was assessed, revealing about 75% TOC removal and complete dye decomposition over five successive recycles, with less than 1 mg/L of Fe and Al leaching. UV–Vis spectra revealed the destruction of MB dye over multiple recycling studies. Based on this finding, the amorphous AlFe-BTC MOF nanoplates emerge as a promising solution for efficient dye removal from industrial wastewater, underscoring their potential in advanced environmental remediation processes. Graphical Abstract: (Figure presented.). © The Author(s), under exclusive licence to Springer Nature B.V. 2024.

关键词： Iron

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Emerging strategies and developments in oxygen reduction reaction using high-performance platinum-based electrocatalysts

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Nano Research 2024年第5期17卷 3516-3532页

作者： Asad Ali Aatto Laaksonen Guo Huang Shahid Hussain Shuiping Luo Wen Chen Pei Kang Shen Jinliang Zhu Xiaoyan Ji Energy Engineering Division of Energy ScienceLuleåUniversity of Technology97187 LuleåSweden Department of Materials and Environmental Chemistry Arrhenius LaboratoryStockholm UniversitySE-10691 StockholmSweden Center of Advanced Research in Bionanoconjugates and Biopolymers “Petru Poni”Institute of Macromolecular ChemistryIasi 700469Romania State Key Laboratory of Materials-Oriented and Chemical Engineering Nanjing Tech UniversityNanjing 211816China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518060China School of Resources Environment and MaterialsState Key Laboratory of Processing for Non-ferrous Metal and Featured MaterialsGuangxi UniversityNanning 530004China

The global practical implementation of proton exchange membrane fuel cells(PEMFCs)heavily relies on the advancement of highly effective platinum(Pt)-based electrocatalysts for the oxygen reduction reaction(ORR).To achieve high ORR performance,electrocatalysts with highly accessible reactive surfaces are needed to promote the uncovering of active positions for easy mass *** this critical review,we introduce different approaches for the emerging development of effective ORR electrocatalysts,which offer high activity and *** strategies,including morphological engineering,geometric configuration modification via supporting materials,alloys regulation,core-shell,and confinement engineering of single atom electrocatalysts(SAEs),are discussed in line with the goals and requirements of ORR performance *** review the ongoing development of Pt electrocatalysts based on the syntheses,nanoarchitecture,electrochemical performances,and *** eventually explore the obstacles and research directions on further developing more effective electrocatalysts.

关键词： oxygen reduction reaction(ORR) Pt-based electrocatalysts proton exchange membrane fuel cells(PEMFCs) morphology and alloys strategies single atom electrocatalysts(SAEs)

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Photo-assisted microbial fuel cell systems: critical review of scientific rationale and recent advances in system development

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Critical Reviews in Biotechnology 2024年第1期44卷 31-46页

作者： Cao, Thanh Ngoc Dan Wang, TsingHai Peng, Yong Hsu, Hsien-Yi Mukhtar, Hussnain Yu, Chang-Ping Graduate Institute of Environmental Engineering National Taiwan University Taipei Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Chongli Taiwan School of Energy and Environment Department of Materials Science and Engineering City University of Hong Kong Kowloon Tong Hong Kong Shenzhen Research Institute of City University of Hong Kong Shenzhen China Department of Bioenvironmental Systems Engineering National Taiwan University Taipei Taiwan

Bioelectrochemical systems such as microbial fuel cells (MFCs) have gained extensive attention due to their abilities to simultaneously treat wastewater and generate renewable energy resources. Recently, to boost the system performance, the photoelectrode has been incorporated into MFCs for effectively exploiting the synergistic interaction between light and microorganisms, and the resultant device is known as photo-assisted microbial fuel cells (photo-MFCs). Combined with the metabolic reaction of organic compounds by microorganisms, photo-MFCs are capable of simultaneously converting both chemical energy and light energy into electricity. This article aims to systematically review the recent advances in photo-MFCs, including the introduction of specific photosynthetic microorganisms used in photo-MFCs followed by the discussion of the fundamentals and configurations of photo-MFCs. Moreover, the materials used for photoelectrodes and their fabrication approaches are also explored. This review has shown that the innovative strategy of utilizing photoelectrodes in photo-MFCs is promising and further studies are warranted to strengthen the system stability under long-term operation for advancing practical application. © 2022 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Microbial fuel cells

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Application of a Self-Assembly Sensing Layer to Grating Sensor Cabinets for Biomedical Sensing of Rheumatoid Arthritis Antigen-Antibodies

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IEEE Sensors Journal 2024年第7期24卷 10039-10047页

作者： Wen, Hsin-Yi Hsu, Hsiang-Cheng Feng, Wen-Kai Jhan, Kai-Siang Yeh, Yao-Tsung Chiang, Chia-Chin National Kaohsiung University of Science and Technology Department of Chemical and Materials Engineering Kaohsiung80778 Taiwan National Kaohsiung University of Science and Technology College of Maritime Department of Ph.D. Program in Maritime Science and Technology Kaohsiung807618 Taiwan National Kaohsiung University of Science and Technology Department of Mechanical Engineering Kaohsiung80778 Taiwan Fooyin University Department of Medical Laboratory Science and Biotechnology Kaohsiung83102 Taiwan

In this article, we harnessed biomedical applications in laser-assisted etching long-period fiber gratings (LLPFGs) sensors, subsequently deploying them within the realm of biomedical applications. The primary aim of this study was to devise a sensitive method for the detection of antigen-antibodies associated with rheumatoid arthritis (RA) using LLPFGs. Sensing the antigen binding took place on the surface of the optical fiber through a self-assembling process. Given the inherent limitations of conventional rheumatoid factor (RF) testing in terms of specificity, we introduced an innovative serum-based approach geared toward the identification of anti-cyclic citrullinated peptide (Anti-CCP) antibodies. This method exhibited an impressive diagnostic accuracy rate of approximately 80% for RA cases, coupled with an exceptional specificity level of 98% for individuals without RA. The incorporation of LLPFGs in the detection of RA antigen-antibodies presents a highly promising avenue for enhancing the precision and reliability of RA diagnosis. Furthermore, this research aligns closely with the United Nations Sustainable Development Goal (SDG)3, which strives to promote well-being across all age groups and advance sustainable development by addressing health-related challenges, including the accurate diagnosis of diseases like RA. © 2023 IEEE.

关键词： Antibodies

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environmentally-friendly alkaline ionized water pretreatment and hydrolysis of macroalga via microwave-assisted heating to improve monosaccharide yield for bioethanol production

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Process Safety and environmental Protection 2024年 189卷 702-713页

作者： Chen, Wei-Hsin Liu, Li-Xuan Khoo, Kuan Shiong Sheen, Herng-Kuang Kwon, Eilhann E. Saravanakumar, Ayyadurai Chang, Jo-Shu Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung411 Taiwan International Master Degree Program on Energy National Cheng Kung University Tainan701 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan Taiwan Sugar Business Division Taiwan Sugar Corporation Taiwan701 Taiwan Department of Earth Resources and Environmental Engineering Hanyang University Seoul04763 Korea Republic of Directorate of Research SRM Institute of Science and Technology Chengalpattu District Tamil Nadu Kattankulathur603203 India Department of Chemical Engineering and Materials Science College of Engineering Tunghai University Taichung Taiwan Department of Chemical Engineering National Cheng Kung University Tainan Taiwan

This study synthesizes three sequential steps: pretreatment, acid hydrolysis, and enzyme hydrolysis for bioethanol and hydrochar production from macroalga Gracilaria. The Taguchi method is employed separately in each step to optimize relevant operating factors, aiming to maximize the monosaccharide yield. During pretreatment, environmentally friendly alkaline ionized water is utilized as it does not contain chemical additives. Afterward, microwave-assisted hydrolysis is adopted to enhance the monosaccharide yield of the macroalga for bioenergy production. The results show that the total sugar of Gracilaria undergoing acid hydrolysis alone is 28.72 g‧L−1. The total sugar content after alkaline pretreatment followed by acid hydrolysis is 32.64 g‧L−1, and it increases to 34.76 g‧L−1 after adding enzymes. Meanwhile, the higher heating value of Gracilaria increases from 10.884 MJ‧kg−1 to 12.620 MJ‧kg−1 after undergoing alkaline pretreatment. After the acid and enzyme hydrolysis processes, it increases to 15.164 MJ‧kg−1. The solid biofuel's calorific value increases by 39 % from the three-stage processes. The liquid product combined with Saccharomyces cerevisiae can produce bioethanol, while the produced hydrochar can be used as a solid fuel. This research promotes the development of macroalgal biomass for energy and environmental applications, thereby advancing the circular bioeconomy. © 2024 The Institution of chemical Engineers

关键词： Ethanol

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A novel carbon-induced-porosity mechanism for improved cycling stability of magnesium hydride

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Journal of Magnesium and Alloys 2025年第3期13卷 1341-1352页

作者： Shuaijun Ding Yuqing Qiao Xuecheng Cai Hongchao Wang Xun Shen Lidong Xu Yixuan Wen Fenglong Jiang Wei Zhou Tongde Shen Clean Nano Energy Center State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China Hebei Key Laboratory of Applied Chemistry College of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China Department of Mechanical Engineering The University of Hong KongPokfulam RoadHong KongChina

MgH_(2) has been extensively studied as one of the most ideal solid hydrogen storage ***,rapid capacity decay and sluggish hydrogen storage kinetics hamper its practical ***,a Ni/C nano-catalyst doped MgH_(2)(MgH_(2)–Ni/C)shows an improved hydrogen absorption kinetics with largely reduced activation ***,the MgH_(2)–Ni/C displays remarkable cycling stability,which maintains a high capacity of 6.01 wt.%(98.8%of initial capacity)even after 50 full hydrogen ab/desorption cycles,while the undoped MgH_(2) counterpart retains only 85.2%of its initial *** microstructure characterizations clearly reveal that particle sintering/growth accounts primarily for the deterioration of cycling performance of undoped MgH_(2).By comparison,MgH_(2)–Ni/C can maintain a stable particle size with a growing porous structure during long-term cycling,which effectively increases the speciﬁc surface of the particles.A novel carbon-induced-porosity stabilization mechanism is proposed,which can stabilize the proportion of rapid hydrogen absorption process,thus dominating the excellent cycling performance of MgH_(2)–Ni/*** study provides new insights into the cycling stability mechanism of carbon-containing Mg-based hydrogen storage materials,thus promoting their practical applications.

关键词： Hydrogen storage materials Magnesium hydride Cycling properties Particle stability Carbon-induced-porosity

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Feasibility of geopolymer synthesis using soda ash in copper slag blended fly ash-based geopolymer

Feasibility of geopolymer synthesis using soda ash in copper...

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1st International Conference on Advances in Cement and Concrete, ICACCR 2022

作者： Erunkulu, I.O. Malumbela, G. Oladijo, O.P. Department of Civil and Environmental Engineering Botswana International University of Science and Technology Botswana Department of Chemical Materials and Metallurgical Engineering Botswana International University of Science and Technology Botswana

This study presents the strength development of geopolymer synthesized from class F-type fly ash blended with copper slag in 0-50 % variation using soda ash as the alkaline activator. Physical and chemical characterization of precursors was carried out with particle size analysis, X-ray diffraction, scanning electron microscopy and X-ray fluorescence analysis. The geopolymer paste mixtures were prepared with an activator to binder ratio of 0.32, liquid to solid ratio of 0.3, and cast in 50 mm cubes. The paste cubes were subjected to ambient and heat curing of 80 °C for 3 days and thereafter tested for compressive strength at 3, 7, and 28 days. The results showed varied performance within the sample mix types to curing condition. Ambient curing was most effective in geopolymer pastes with 100 % fly ash composition which developed early strength of 6.79 MPa at 3 days higher than other copper slag blended variations. While geopolymer pastes with 40 % slag mix developed significant strength with heat curing. Overall, the obtained optimum strength at the synthesis parameters with soda ash was 17 MPa. © 2023 Elsevier Ltd. All rights reserved.

关键词： Fly ash

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Machine learning in concrete science:applications,challenges,and best practices

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npj Computational materials 2022年第1期8卷 1192-1208页

作者： Zhanzhao Li Jinyoung Yoon Rui Zhang Farshad Rajabipour Wil V.Srubar III Ismaila Dabo Aleksandra Radlińska Department of Civil and Environmental Engineering The Pennsylvania State UniversityUniversity ParkPA16802USA Department of Structural Engineering Research Korea Institute of Civil Engineering and Building Technology(KICT)Goyang-si10223Republic of Korea Department of Civil Environmentaland Architectural EngineeringUniversity of Colorado BoulderBoulderCO80309USA Materials Science and Engineering Program University of Colorado BoulderBoulderCO80309USA Department of Materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPA16802USA

Concrete,as the most widely used construction material,is inextricably connected with human *** conceptual and methodological progress in concrete science,concrete formulation for target properties remains a challenging task due to the ever-increasing complexity of cementitious *** the ability to tackle complex tasks autonomously,machine learning(ML)has demonstrated its transformative potential in concrete *** the rapid adoption of ML for concrete mixture design,there is a need to understand methodological limitations and formulate best practices in this emerging computational ***,we review the areas in which ML has positively impacted concrete science,followed by a comprehensive discussion of the implementation,application,and interpretation of ML *** conclude by outlining future directions for the concrete community to fully exploit the capabilities of ML models.

关键词： concrete directions autonomous

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