Environmental Science and Ecotechnology最新文献

{"title":"Characterizing leaf-deposited particles: Single-particle mass spectral analysis and comparison with naturally fallen particles","authors":"Dele Chen ,&nbsp;Hua-Yun Xiao ,&nbsp;Ningxiao Sun ,&nbsp;Jingli Yan ,&nbsp;Shan Yin","doi":"10.1016/j.ese.2024.100432","DOIUrl":"https://doi.org/10.1016/j.ese.2024.100432","url":null,"abstract":"<div><p>The size and composition of particulate matter (PM) are pivotal in determining its adverse health effects. It is important to understand PM's retention by plants to facilitate its atmospheric removal. However, the distinctions between the size and composition of naturally fallen PM (NFPM) and leaf-deposited PM (LDPM) are not well-documented. Here we utilize a single-particle aerosol mass spectrometer, coupled with a PM resuspension chamber, to analyze these differences. We find that LDPM particles are 6.8–97.3 % larger than NFPM. Employing a neural network algorithm based on adaptive resonance theory, we have identified distinct compositional profiles: NFPM predominantly consists of organic carbon (OC; 31.2 %) and potassium-rich components (19.1 %), whereas LDPM are largely composed of crustal species (53.9–60.6 %). Interestingly, coniferous species retain higher OC content (11.5–13.7 %) compared to broad-leaved species (0.5–1.2 %), while the levoglucosan content exhibit an opposite trend. Our study highlights the active role of tree leaves in modifying PM composition beyond mere passive capture, advocating for a strategic approach to species selection in urban greening initiatives to enhance PM mitigation. These insights provide guidance for urban planners and environmentalists in implementing nature-based solutions to improve urban air quality.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100432"},"PeriodicalIF":12.6,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000462/pdfft?md5=8cdd3036d7eba543ef498a7c763eba4d&pid=1-s2.0-S2666498424000462-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141083435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biocontrol agents modulate phyllosphere microbiota interactions against pathogen Pseudomonas syringae","authors":"Zhaoyue Yang ,&nbsp;Tianbo Liu ,&nbsp;Jianqiang Fan ,&nbsp;Yiqiang Chen ,&nbsp;Shaolong Wu ,&nbsp;Jingjing Li ,&nbsp;Zhenghua Liu ,&nbsp;Zhendong Yang ,&nbsp;Liangzhi Li ,&nbsp;Suoni Liu ,&nbsp;Hongwu Yang ,&nbsp;Huaqun Yin ,&nbsp;Delong Meng ,&nbsp;Qianjun Tang","doi":"10.1016/j.ese.2024.100431","DOIUrl":"10.1016/j.ese.2024.100431","url":null,"abstract":"<div><p>The pathogen <em>Pseudomonas syringae</em>, responsible for a variety of diseases, poses a considerable threat to global crop yields. Emerging biocontrol strategies employ antagonistic microorganisms, utilizing phyllosphere microecology and systemic resistance to combat this disease. However, the interactions between phyllosphere microbial dynamics and the activation of the plant defense system remain poorly understood. Here we show significant alterations in phyllosphere microbiota structure and plant gene expression following the application of biocontrol agents. We reveal enhanced collaboration and integration of <em>Sphingomonas</em> and <em>Methylobacterium</em> within the microbial co-occurrence network. Notably, <em>Sphingomonas</em> inhibits <em>P. syringae</em> by disrupting pathogen chemotaxis and virulence. Additionally, both <em>Sphingomonas</em> and <em>Methylobacterium</em> activate plant defenses by upregulating pathogenesis-related gene expression through abscisic acid, ethylene, jasmonate acid, and salicylic acid signaling pathways. Our results highlighted that biocontrol agents promote plant health, from reconstructing beneficial microbial consortia to enhancing plant immunity. The findings enrich our comprehension of the synergistic interplays between phyllosphere microbiota and plant immunity, offering potential enhancements in biocontrol efficacy for crop protection.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100431"},"PeriodicalIF":12.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000450/pdfft?md5=191a356a44a8e5ff16443454fdefd3b2&pid=1-s2.0-S2666498424000450-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141040090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The synergistic interplay of artificial intelligence and digital twin in environmentally planning sustainable smart cities: A comprehensive systematic review","authors":"Simon Elias Bibri ,&nbsp;Jeffrey Huang ,&nbsp;Senthil Kumar Jagatheesaperumal ,&nbsp;John Krogstie","doi":"10.1016/j.ese.2024.100433","DOIUrl":"10.1016/j.ese.2024.100433","url":null,"abstract":"&lt;div&gt;&lt;p&gt;The dynamic landscape of sustainable smart cities is witnessing a significant transformation due to the integration of emerging computational technologies and innovative models. These advancements are reshaping data-driven planning strategies, practices, and approaches, thereby facilitating the achievement of environmental sustainability goals. This transformative wave signals a fundamental shift — marked by the synergistic operation of artificial intelligence (AI), artificial intelligence of things (AIoT), and urban digital twin (UDT) technologies. While previous research has largely explored urban AI, urban AIoT, and UDT in isolation, a significant knowledge gap exists regarding their synergistic interplay, collaborative integration, and collective impact on data-driven environmental planning in the dynamic context of sustainable smart cities. To address this gap, this study conducts a comprehensive systematic review to uncover the intricate interactions among these interconnected technologies, models, and domains while elucidating the nuanced dynamics and untapped synergies in the complex ecosystem of sustainable smart cities. Central to this study are four guiding research questions: 1. What theoretical and practical foundations underpin the convergence of AI, AIoT, UDT, data-driven planning, and environmental sustainability in sustainable smart cities, and how can these components be synthesized into a novel comprehensive framework? 2. How does integrating AI and AIoT reshape the landscape of data-driven planning to improve the environmental performance of sustainable smart cities? 3. How can AI and AIoT augment the capabilities of UDT to enhance data-driven environmental planning processes in sustainable smart cities? 4. What challenges and barriers arise in integrating and implementing AI, AIoT, and UDT in data-driven environmental urban planning, and what strategies can be devised to surmount or mitigate them? Methodologically, this study involves a rigorous analysis and synthesis of studies published between January 2019 and December 2023, comprising an extensive body of literature totaling 185 studies. The findings of this study surpass mere interdisciplinary theoretical enrichment, offering valuable insights into the transformative potential of integrating AI, AIoT, and UDT technologies to advance sustainable urban development practices. By enhancing data-driven environmental planning processes, these integrated technologies and models offer innovative solutions to address complex environmental challenges. However, this endeavor is fraught with formidable challenges and complexities that require careful navigation and mitigation to achieve desired outcomes. This study serves as a comprehensive reference guide, spurring groundbreaking research endeavors, stimulating practical implementations, informing strategic initiatives, and shaping policy formulations in sustainable urban development. These insights have profound implicatio","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"20 ","pages":"Article 100433"},"PeriodicalIF":12.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000474/pdfft?md5=954dd15e6e069b89cc3a33d3f6aa6707&pid=1-s2.0-S2666498424000474-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141040447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solute flow and particle transport in aquatic ecosystems: A review on the effect of emergent and rigid vegetation","authors":"Judy Q. Yang","doi":"10.1016/j.ese.2024.100429","DOIUrl":"10.1016/j.ese.2024.100429","url":null,"abstract":"<div><p>In-channel vegetation is ubiquitous in aquatic environments and plays a critical role in the fate and transport of solutes and particles in aquatic ecosystems. Recent studies have advanced our understanding of the role of vegetation in solute flow and particle transport in aquatic ecosystems. This review summarizes these papers and discusses the impacts of emergent and rigid vegetation on the surface flow, the advection and dispersion of solutes, suspended load transport, bedload transport, and hyporheic exchange. The two competing effects of emergent vegetation on the above transport processes are discussed. On the one hand, emergent vegetation reduces mean flow velocity at the same surface slope, which reduces mass transport. On the other hand, at the same mean flow velocity, vegetation generates turbulence, which enhances mass transport. Mechanistic understanding of these two competing effects and predictive equations derived from laboratory experiments are discussed. Predictive equations for the mean flow velocity and turbulent kinetic energy inside an emergent vegetation canopy are derived based on force and energy balance. The impacts of emergent vegetation on the advection-dispersion process, the suspended load and bedload transport, and the hyporheic exchange are summarized. The impacts of other vegetation-related factors, such as vegetation morphology, submergence, and flexibility, are briefly discussed. The role of vegetation in transporting other particles, such as micro- and macro-plastics, is also briefly discussed. Finally, suggestions for future research directions are proposed to advance the understanding of the dynamic interplays among natural vegetation, flow dynamics, and sedimentary processes.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100429"},"PeriodicalIF":12.6,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000437/pdfft?md5=04112141dd8c399409163285c7699ecf&pid=1-s2.0-S2666498424000437-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Optical measurements of dissolved organic matter as proxies for CODMn and BOD5 in plateau lakes” [Environ. Sci. Ecotech. 19 (2024) 100326]","authors":"Xuan Yang ,&nbsp;Yongqiang Zhou ,&nbsp;Xiaoying Yang ,&nbsp;Yunlin Zhang ,&nbsp;Robert G.M. Spencer ,&nbsp;Justin D. Brookes ,&nbsp;Erik Jeppesen ,&nbsp;Hucai Zhang ,&nbsp;Qichao Zhou","doi":"10.1016/j.ese.2024.100426","DOIUrl":"https://doi.org/10.1016/j.ese.2024.100426","url":null,"abstract":"","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"20 ","pages":"Article 100426"},"PeriodicalIF":12.6,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000401/pdfft?md5=a5ab592c1122e360869ff257c3dac287&pid=1-s2.0-S2666498424000401-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140893225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polylactic acid micro/nanoplastic-induced hepatotoxicity: Investigating food and air sources via multi-omics","authors":"Hua Zha ,&nbsp;Shengyi Han ,&nbsp;Ruiqi Tang ,&nbsp;Dan Cao ,&nbsp;Kevin Chang ,&nbsp;Lanjuan Li","doi":"10.1016/j.ese.2024.100428","DOIUrl":"https://doi.org/10.1016/j.ese.2024.100428","url":null,"abstract":"<div><p>Micro/nanoplastics (MNPs) are detected in human liver, and pose significant risks to human health. Oral exposure to MNPs derived from non-biodegradable plastics can induce toxicity in mouse liver. Similarly, nasal exposure to non-biodegradable plastics can cause airway dysbiosis in mice. However, the hepatotoxicity induced by foodborne and airborne biodegradable MNPs remains poorly understood. Here we show the hepatotoxic effects of biodegradable polylactic acid (PLA) MNPs through multi-omics analysis of various biological samples from mice, including gut, fecal, nasal, lung, liver, and blood samples. Our results show that both foodborne and airborne PLA MNPs compromise liver function, disrupt serum antioxidant activity, and cause liver pathology. Specifically, foodborne MNPs lead to gut microbial dysbiosis, metabolic alterations in the gut and serum, and liver transcriptomic changes. Airborne MNPs affect nasal and lung microbiota, alter lung and serum metabolites, and disrupt liver transcriptomics. The gut Lachnospiraceae_NK4A136_group is a potential biomarker for foodborne PLA MNP exposure, while nasal unclassified<em>_</em>Muribaculaceae and lung <em>Klebsiella</em> are potential biomarkers for airborne PLA MNP exposure. The relevant results suggest that foodborne PLA MNPs could affect the “gut microbiota-gut-liver” axis and induce hepatoxicity, while airborne PLA MNPs could disrupt the “airway microbiota-lung-liver” axis and cause hepatoxicity. These findings have implications for diagnosing PLA MNPs-induced hepatotoxicity and managing biodegradable materials in the environment. Our current study could be a starting point for biodegradable MNPs-induced hepatotoxicity. More research is needed to verify and inhibit the pathways that are crucial to MNPs-induced hepatotoxicity.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100428"},"PeriodicalIF":12.6,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000425/pdfft?md5=f2799ba58d66a1bdfff623de9433d71b&pid=1-s2.0-S2666498424000425-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140951664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trends and drivers of anthropogenic NOx emissions in China since 2020","authors":"Hui Li ,&nbsp;Bo Zheng ,&nbsp;Yu Lei ,&nbsp;Didier Hauglustaine ,&nbsp;Cuihong Chen ,&nbsp;Xin Lin ,&nbsp;Yi Zhang ,&nbsp;Qiang Zhang ,&nbsp;Kebin He","doi":"10.1016/j.ese.2024.100425","DOIUrl":"https://doi.org/10.1016/j.ese.2024.100425","url":null,"abstract":"<div><p>Nitrogen oxides (NO_<em>x</em>), significant contributors to air pollution and climate change, form aerosols and ozone in the atmosphere. Accurate, timely, and transparent information on NO_<em>x</em> emissions is essential for decision-making to mitigate both haze and ozone pollution. However, a comprehensive understanding of the trends and drivers behind anthropogenic NO_<em>x</em> emissions from China—the world's largest emitter—has been lacking since 2020 due to delays in emissions reporting. Here we show a consistent decline in China's NO_<em>x</em> emissions from 2020 to 2022, despite increased fossil fuel consumption, utilizing satellite observations as constraints for NO_<em>x</em> emission estimates through atmospheric inversion. This reduction is corroborated by data from two independent spaceborne instruments: the TROPOspheric Monitoring Instrument (TROPOMI) and the Ozone Monitoring Instrument (OMI). Notably, a reduction in transport emissions, largely due to the COVID-19 lockdowns, slightly decreased China's NO_<em>x</em> emissions in 2020. In subsequent years, 2021 and 2022, reductions in NO_<em>x</em> emissions were driven by the industry and transport sectors, influenced by stringent air pollution controls. The satellite-based inversion system developed in this study represents a significant advancement in the real-time monitoring of regional air pollution emissions from space.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100425"},"PeriodicalIF":12.6,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000395/pdfft?md5=a102f4701f047e34afab97ce21a5c2ac&pid=1-s2.0-S2666498424000395-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140894462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A critical review of microplastics in aquatic ecosystems: Degradation mechanisms and removing strategies","authors":"Sameh S. Ali ,&nbsp;Tamer Elsamahy ,&nbsp;Rania Al-Tohamy ,&nbsp;Jianzhong Sun","doi":"10.1016/j.ese.2024.100427","DOIUrl":"10.1016/j.ese.2024.100427","url":null,"abstract":"<div><p>Plastic waste discarded into aquatic environments gradually degrades into smaller fragments, known as microplastics (MPs), which range in size from 0.05 to 5 mm. The ubiquity of MPs poses a significant threat to aquatic ecosystems and, by extension, human health, as these particles are ingested by various marine organisms including zooplankton, crustaceans, and fish, eventually entering the human food chain. This contamination threatens the entire ecological balance, encompassing food safety and the health of aquatic systems. Consequently, developing effective MP removal technologies has emerged as a critical area of research. Here, we summarize the mechanisms and recently reported strategies for removing MPs from aquatic ecosystems. Strategies combining physical and chemical pretreatments with microbial degradation have shown promise in decomposing MPs. Microorganisms such as bacteria, fungi, algae, and specific enzymes are being leveraged in MP remediation efforts. Recent advancements have focused on innovative methods such as membrane bioreactors, synthetic biology, organosilane-based techniques, biofilm-mediated remediation, and nanomaterial-enabled strategies, with nano-enabled technologies demonstrating substantial potential to enhance MP removal efficiency. This review aims to stimulate further innovation in effective MP removal methods, promoting environmental and social well-being.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100427"},"PeriodicalIF":12.6,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000413/pdfft?md5=890bd9ed74e711f83d2f14e0956d73c7&pid=1-s2.0-S2666498424000413-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140762169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lactate-mediated medium-chain fatty acid production from expired dairy and beverage waste","authors":"Bin Bian ,&nbsp;Wenxiang Zhang ,&nbsp;Najiaowa Yu ,&nbsp;Wei Yang ,&nbsp;Jiajie Xu ,&nbsp;Bruce E. Logan ,&nbsp;Pascal E. Saikaly","doi":"10.1016/j.ese.2024.100424","DOIUrl":"10.1016/j.ese.2024.100424","url":null,"abstract":"<div><p>Fruits, vegetables, and dairy products are typically the primary sources of household food waste. Currently, anaerobic digestion is the most used bioprocess for the treatment of food waste with concomitant generation of biogas. However, to achieve a circular carbon economy, the organics in food waste should be converted to new chemicals with higher value than energy. Here we demonstrate the feasibility of medium-chain carboxylic acid (MCCA) production from expired dairy and beverage waste via a chain elongation platform mediated by lactate. In a two-stage fermentation process, the first stage with optimized operational conditions, including varying temperatures and organic loading rates, transformed expired dairy and beverage waste into lactate at a concentration higher than 900 mM C at 43 °C. This lactate was then used to produce &gt;500 mM C caproate and &gt;300 mM C butyrate via microbial chain elongation. Predominantly, lactate-producing microbes such as <em>Lactobacillus</em> and <em>Lacticaseibacillus</em> were regulated by temperature and could be highly enriched under mesophilic conditions in the first-stage reactor. In the second-stage chain elongation reactor, the dominating microbes were primarily from the genera <em>Megasphaera</em> and <em>Caproiciproducens</em>, shaped by varying feed and inoculum sources. Co-occurrence network analysis revealed positive correlations among species from the genera <em>Caproiciproducens</em>, <em>Ruminococcus</em>, and <em>CAG</em>-352, as well as <em>Megasphaera</em>, <em>Bacteroides</em>, and <em>Solobacterium</em>, indicating strong microbial interactions that enhance caproate production. These findings suggest that producing MCCAs from expired dairy and beverage waste via lactate-mediated chain elongation is a viable method for sustainable waste management and could serve as a chemical production platform in the context of building a circular bioeconomy.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100424"},"PeriodicalIF":12.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000383/pdfft?md5=90f0c5616c3359736003e0f1b2d48165&pid=1-s2.0-S2666498424000383-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overlooked interaction between redox-mediator and bisphenol-A in permanganate oxidation","authors":"Honglong Zhang ,&nbsp;Qiaoqiao Zhao ,&nbsp;Kangbao Zhong ,&nbsp;Ruopeng Bai ,&nbsp;Jiaojiao Dong ,&nbsp;Jun Ma ,&nbsp;Jing Zhang ,&nbsp;Timothy J. Strathmann","doi":"10.1016/j.ese.2024.100421","DOIUrl":"10.1016/j.ese.2024.100421","url":null,"abstract":"<div><p>Research efforts on permanganate (Mn(VII)) combined with redox-mediator (RM), have received increasing attention due to their significant performance for bisphenol-A (BPA) removal. However, the mechanisms underpinning BPA degradation remain underexplored. Here we show the overlooked interactions between RM and BPA during permanganate oxidation by introducing an RM—N-hydroxyphthalimide (NHPI). We discovered that the concurrent generation of MnO₂ and phthalimide-<em>N</em>-oxyl (PINO) radical significantly enhances BPA oxidation within the pH range of 5.0–6.0. The detection of radical cross-coupling products between PINO radicals and BPA or its derivatives corroborates the pivotal role of radical cross-coupling in BPA oxidation. Intriguingly, we observed the formation of an NHPI-BPA complex, which undergoes preferential oxidation by Mn(VII), marked by the emergence of an electron-rich domain in NHPI. These findings unveil the underlying mechanisms in the Mn(VII)/RM system and bridge the knowledge gap concerning BPA transformation via complexation. This research paves the way for further exploration into optimizing complexation sites and RM dosage, significantly enhancing the system's efficiency in water treatment applications.</p></div>","PeriodicalId":34434,"journal":{"name":"Environmental Science and Ecotechnology","volume":"21 ","pages":"Article 100421"},"PeriodicalIF":12.6,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666498424000358/pdfft?md5=94f0e165188da85406483c76afe9cbdc&pid=1-s2.0-S2666498424000358-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140794465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}