环境科学与生态学最新文献

{"title":"Mapping the distribution of the alien invasive Gracilaria vermiculophylla at the site of its first European introduction.","authors":"Simon Oiry, Bede Ffinian Rowe Davies, Valérie Stiger-Pouvreau, Pierre Gernez, Laurent Barillé","doi":"10.1016/j.jenvman.2025.126726","DOIUrl":"10.1016/j.jenvman.2025.126726","url":null,"abstract":"<p><p>The invasive red macroalga Gracilaria vermiculophylla has significantly impacted intertidal ecosystems in temperate estuaries globally. This study utilized drone-based multispectral remote sensing to map the spatial and temporal distribution of G. vermiculophylla in its first documented European site, the Belon Estuary, alongside additional sites in Spain and France. By adapting the neural network classification model DISCOV, trained with a comprehensive dataset, we achieved 91.1 % accuracy in distinguishing G. vermiculophylla from other macroalgal taxa. Historical aerial imagery revealed a progressive expansion of G. vermiculophylla from its initial appearance in 1976, approximately 20 years before its first description in the literature, to extensive colonization by 2024. Concurrent LiDAR data enabled precise characterization of intertidal topography, demonstrating a strong association between algal cover, elevation, and slope. Dense mats were consistently observed in flat, elevated mudflat areas, with reduced presence in steeper or lower zones. These patterns indicate that G. vermiculophylla is able to persist in stable, fine-sediment environments where hydrodynamic forces are relatively low. Temporal analyses also linked its spread to anthropogenic activities, notably aquaculture. Our findings emphasize the utility of high-resolution drone imaging for invasive species monitoring and habitat mapping, offering critical insights into the ecological dynamics of G. vermiculophylla and its drivers. This scalable method facilitates proactive management strategies by enabling early detection and detailed assessment of invasion patterns. The integration of remote sensing and in situ validation establishes a robust framework for ecological monitoring, contributing to the understanding of biological invasions and their environmental consequences. This approach can inform management interventions to mitigate the impacts of G. vermiculophylla and similar invasive species.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126726"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological implications of changes in vegetation elemental composition under different heather (Calluna vulgaris) managements on British blanket bog.","authors":"Andreas Heinemeyer, Phoebe A Morton, Thomas David, Thomas Holmes, Anthony L Jones, Bing Liu","doi":"10.1016/j.jenvman.2025.126720","DOIUrl":"10.1016/j.jenvman.2025.126720","url":null,"abstract":"<p><p>Heather (Calluna vulgaris)-dominated peatlands are important biodiversity habitats, often shaped by historical management. In the UK, these habitats were traditionally burnt to rejuvenate vegetation for grazing. Heather burning intensified over the last two centuries for red grouse (Lagopus lagopus scoticus) management, creating a mosaic of vegetation composition and ages for shelter, foraging and nesting of many rare upland birds. More recently, burning has been claimed to negatively impact peatlands and associated key ecosystem services, including carbon storage. Regulation has consequently tightened, with burning replaced by cutting or no heather management. However, surprisingly little is known regarding long-term management effects and evidence of negative burning impacts remains contested. Here, we examine how these three management approaches affect elemental composition of two principal food plants, heather and cotton-grass (Eriophorum spp.) across three British upland peatlands over ten years. We find that: 1) heather shoot nutrition significantly improved following management (mainly increasing Mn, P, N, Na, Zn, and, for burning only, Fe and K and decreasing Al) compared to no management, 2) management benefits were most pronounced post-burning, and often for longer than post-cutting, 3) impacts were primarily evident in heather shoots and nutrient levels generally realigned over nine years post-management, and 4) cotton-grass, especially flower heads, showed significantly increased Mn on burnt plots. These elemental benefits (Fe, N, Mn, P) are important for carbon uptake, egg formation (K, Zn), avian breeding success and grazing animals (P). This study highlights the value of long-term, holistic monitoring when assessing peatland management strategies.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126720"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of AI-based techniques for anomaly management in wastewater treatment plants: A review.","authors":"Sen Yang, Kourosh Behzadian, Chiara Coleman, Timothy G Holloway, Luiza C Campos","doi":"10.1016/j.jenvman.2025.126886","DOIUrl":"10.1016/j.jenvman.2025.126886","url":null,"abstract":"<p><p>Effective anomaly management of wastewater treatment plants (WWTPs) is crucial for environmental conservation and public health security. Traditional monitoring methods often struggle with challenges such as multivariate coupling, nonlinear dynamics, and external interferences inherent in wastewater treatment processes, which has driven growing interest towards artificial intelligence (AI)-based anomaly management solutions. This paper critically reviews recent advancements in AI-based anomaly management strategies for WWTPs, emphasizing three integral aspects: sensor data quality control and self-calibration, early anomaly detection and diagnosis, and fault-tolerant control and resilience enhancement. Systematic comparisons are made among supervised, unsupervised, and transfer learning methods, highlighting the strengths and weaknesses of deep learning, ensemble learning, and intelligent optimization algorithms in addressing practical engineering issues such as sensor noise, multimodal data distributions, imbalanced datasets, and limited cross-facility generalizability. The review further highlights real-world performance metrics beyond conventional accuracy, such as application scalability, anomaly detection timeliness, and technological adaptability. Key findings reveal research gaps hindering for the progress and application of AI-based anomaly management approaches in model interpretability, computational intensity, data quality controls, cross-facility generalization, and cost-effectiveness. More importantly, future research directions cover adaptive learning techniques, explainable AI, integration of AI with digital twin platforms, lightweight infrastructures for real-time edge computing, and environmental and economic analysis of AI deployments in WWTPs.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126886"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144803073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of c-di-AMP in microalgae-bacteria consortium and its roles in mediating exopolysaccharide synthesis for enhancement of microbial aggregation under ammonium shock.","authors":"Yanbing Hu, Qian Bi, Zhenyu Kong, Zimu Li, Shuang Qiu, Shijian Ge","doi":"10.1016/j.jenvman.2025.126888","DOIUrl":"10.1016/j.jenvman.2025.126888","url":null,"abstract":"<p><p>Microalgae-bacteria consortium (MBC) can achieve simultaneous nutrient recovery and value-added biomass production for wastewater treatment. However, the process stability is still limited by multiple factors such as settlement performance, which varies with fluctuations of nutrient loadings. This study investigated the response of settlement performance of MBC to short-term ammonium shock loading (N shock). Its mechanism was initially revealed from a perspective of a recently reported second messenger (cyclic dimeric adenosine 3'-5'-monophosphate (c-di-AMP) in the microbiology and immunology fields. Results showed that N shock significantly enhanced MBC settlement by 18.2 %, which was supported by the reduced energy barriers. This enhancement was ascribed to the 17.9 % stimulated synthesis of c-di-AMP from 121.52 ± 1.42 pg/mg (Day 2) to 142.63 ± 2.45 pg/mg (Day 3). This was confirmed by the multiple protein sequence alignment analysis within Saprospiracea included in MBC, where 6 proteins encoding putative c-di-AMP metabolic enzymes likely exhibited active diadenylate cyclase while the other 10 proteins were inferred to possess active phosphodiesterases. Subsequently, the accumulation of c-di-AMP elevated exopolysaccharide (PS) and exoprotein (PN) levels by 43.9 % and 24.6 % respectively, finally improved microbial aggregation. These enhancements were further revealed through targeted metabolomics analysis, where two precursor substances (i.e., glucose by 164.8 % and UDP-N-acetyl-D-glucosamine (UDP-GlcNAc) by 249.5 % on Day 5) and certain amino acids were respectively enhanced for more PS and PN synthesis. This study is the first to investigate the contributions of c-di-AMP in the regulation of MBC aggregation, updating current knowledge of second messenger in biological wastewater systems.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126888"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144811559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the impact of human activities on the coupling coordination of ecosystem functions in major grain-producing areas: A production-living-ecology perspective.","authors":"Xuesong Zhang, Hongjie Peng, Wei Ren, Ju He, Xiaowen Zhou","doi":"10.1016/j.jenvman.2025.126909","DOIUrl":"10.1016/j.jenvman.2025.126909","url":null,"abstract":"<p><p>The sustainable development of major grain-producing areas necessitates a coupling coordination between ecosystem functions, while carefully considering their responses to human activities. However, our understanding of how human activities influence this coupling coordination in ecosystem functions remains limited. This study establishes an assessment framework for the coupling coordination of ecosystem functions from the production-living-ecology perspective in the Jianghan Plain (JHP), particularly by utilizing multi-source data and relevant geographic spatial models. Furthermore, the current research investigates the impact of human activities on this framework. Findings are as follows. (1) The dominant function was production between 2000 and 2020 in JHP, indicating trends of lower values and higher values in the northern and southern areas. The high-living function transitioned from monocentric to polycentric development trends. The ecology function, characterized by high value, was mainly located in the western and southeastern areas. Additionally, the coupling coordination of ecosystem functions shows a north-south gradient, presenting higher and lower levels in the north and south, respectively. (2) The coupling coordination of ecosystem functions demonstrated significant positive spatial autocorrelation and clustering with human activities, with the high-high and low-low clusters increasing over time. (3) The response of the coupling coordination of ecosystem functions to human activities exhibits an inverted U-shaped curve, indicating trade-off and synergistic effects, along with potential thresholds. Specifically, when the threshold for human activities at the township scale is between 0.14 and 0.17, the coupling coordination reaches its optimal balance. Lastly, findings provide scientific evidence to support the development of sustainable policies in major grain-producing areas.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126909"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Activation of molecular oxygen over MnO_X/CeO₂ for catalytic wet air oxidation of high-concentrated phenolic pollutants.","authors":"Li Zhao, Haiping Mao, Yuanjing Lai, Jinsong He, Dong Tian, Mei Huang, Yongjia Lei, Fei Shen, Jianmei Zou","doi":"10.1016/j.jenvman.2025.126912","DOIUrl":"10.1016/j.jenvman.2025.126912","url":null,"abstract":"<p><p>Catalytic wet air oxidation (CWAO) is an efficient and environmentally friendly technology for treating high concentrations of organic compounds. However, the efficient activation of molecular oxygen remains a great challenge, particularly over non-noble metal catalysts. This study developed a series of MnO_X/CeO₂ catalysts with different Mn loadings for CWAO of phenolic pollutants via oxygen activation. MnO_X/CeO₂-2.5 wt% exhibited the highest catalytic performance, achieving 100 % phenol conversion and 94.4 % total organic carbon (TOC) removal under 120 °C in 1 h, with an original phenol concentration of 1000 ppm and a catalyst loading of 5.0 g L^-1. Furthermore, MnO_X/CeO₂-2.5 wt% demonstrated the ability to degrade other 11 substituted phenolic pollutants and exhibited high stability for six consecutive reuses. H₂-temperature programmed reduction, kinetic analysis, control experiment, and electron paramagnetic resonance characterizations etc. confirmed that MnO_X/CeO₂-2.5 wt% with well-dispersed MnOx possessed a higher redox properties, activating molecular oxygen to produce O₂•^-, •OH and H₂O₂ reactive oxygen species, resulting in the superior catalytic efficiency. Further in combination with LC-MS and TOC results, a possible phenol degradation pathway was proposed. This study offers valuable perspectives for the development of technologies aimed at activating O₂ in CWAO for the treatment of organic compounds.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126912"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of changing environments on seasonal propagation from precipitation to streamflow.","authors":"Wenbin Li, Lihua Xiong, Jiabo Yin, Jie Chen, Hua Chen, Dedi Liu, Rongrong Li","doi":"10.1016/j.jenvman.2025.126907","DOIUrl":"10.1016/j.jenvman.2025.126907","url":null,"abstract":"<p><p>Streamflow seasonality, characterized by its unequal intra-annual distribution, is predominantly shaped by precipitation dynamics in non-snowmelt-dominated regions. However, climate change and human activities can alter the hydrological cycle, weaken the consistency in precipitation-streamflow seasonality, and further modify streamflow seasonality. Despite its importance, the mechanisms modulating precipitation-streamflow seasonality consistency remain underexplored. This study employs time-varying copulas and partial correlation analysis to identify and quantify the evolving seasonality inconsistency between precipitation and streamflow under the influence of multiple anthropogenic and climatic factors. In the Yangtze River Basin (YRB), recent environmental changes, including climate warming, vegetation greening, and reservoir regulation, have increasingly influenced the hydrological cycle. In this study, a slight intensification of precipitation seasonality is observed in half of the YRB watersheds, whereas streamflow seasonality is moderated in 90 % of the watersheds. The climatic and human-induced changes consistently weaken the dependency between precipitation and streamflow across seasons. Comparing the dependency strength between the periods 2006-2015 and 1982-1991, a decline of 17 % was observed in spring, 1 % in summer, 42 % in autumn, and 75 % in winter. Partial correlation analysis highlights three key factors driving the observed decrease in summer streamflow and increase in winter streamflow, with reservoir regulation exerting the most pronounced influence in winter. This study sheds new light on investigating streamflow seasonality in a changing environment.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"392 ","pages":"126907"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting the radical-induced reductive degradation of clofibric acid in water: Synergistic effect of SO₃^2-/UV and hydrodynamic cavitation (HC).","authors":"Kirill Fedorov, Chongqing Wang, Noor S Shah, Grzegorz Boczkaj","doi":"10.1016/j.jenvman.2025.126506","DOIUrl":"10.1016/j.jenvman.2025.126506","url":null,"abstract":"<p><p>Advanced reduction processes (ARPs) of SO₃^2-/UV were combined with hydrodynamic cavitation (HC) for the first time to attempt a reductive degradation of clofibric acid (CLA) in water. At cavitation number (C_v) 0.2, r_red 3.25, pH 6.5, the combined HC/SO₃^2-/UV degraded 99.68 % of CLA in 90 min resulting in a synergistic effect of 1.42. Quenching experiments on SO₃^2-/UV and HC/SO₃^2-/UV revealed that HC promoted the formation of H^• radicals, which were the primary species for CLA degradation. In contrast, the effect of oxidizing species, such as HO^• and SO₄^•- radicals was negligible. HC/SO₃^2-/UV remained high degradation of CLA in the presence of co-existing CO₃^2-, Cl^-, and SO₄^2- anions. The presence of humic acids (HA) showed the strongest inhibitory effect, declining the degradation rate constant of CLA from 6.67 × 10^-2 min^-1 to 1.34 × 10^-2 min^-1. The presented findings offer mechanistic insights into the reductive degradation of CLA under the novel HC/SO₃^2-/UV. Based on the detected intermediates by Gas Chromatography-Mass Spectrometry (GC-MS) and density functional theory (DFT), three pathways of CLA degradation were proposed. Specifically, the reductive degradation of CLA was initiated by nucleophilic attacks of H^• radicals followed by cyclization, hydrogenation of the benzene ring, and fragmentation into smaller compounds, e.g., 3-methylbutanal. Importantly, developed process allows effective dehalogenation of the pollutant. Such approach can find wide applicability for degradation of other emerging organic pollutants, especially pharmaceuticals, pesticides and PFAS containing halogen atoms. This study brings a new strategy for the enhancement of SO₃^2-/UV and demonstrates HC as a versatile and effective tool in water and wastewater treatment.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"391 ","pages":"126506"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements in SO₂ tolerance for low-temperature NH₃-SCR through tailoring oxidation ability and pore size in MnCe-based catalysts.","authors":"Ting-Yu Li, Ming-Yen Wey","doi":"10.1016/j.jenvman.2025.126524","DOIUrl":"10.1016/j.jenvman.2025.126524","url":null,"abstract":"<p><p>The detrimental effects of SO₂ poisoning pose a critical challenge for the practical implementation of Mn-based catalysts in low-temperature NH₃-SCR systems for NO_X abatement. The causes of NH₃-SCR catalyst deactivation are the deposition of ammonium sulfates on the active sites and the formation of metal sulfates due to reactions between SO₂ and the active metal oxide. Herein, a H₂O₂-assisted redox precipitation method has been employed to tailor MnCe-based catalysts by enlarging their pore size and enhancing their oxidation ability, thereby respectively increasing sulfate decomposition rates and reducing metal sulfate formation. As a result, MnCe-M-3H with an optimal H₂O₂/Mn molar ratio of 3 demonstrated a higher proportion of Mn⁴⁺, Ce³⁺, and O_Lat, and a larger pore size than MnCe-M (without H₂O₂). Crucially, MnCe-M-3H exhibits excellent low-temperature NH₃-SCR activity, achieving 85 % at 100 °C and 95 % at 150 °C, and the highest SO₂ tolerance. Characterization of the spent catalysts revealed that increasing the catalyst pore size reduced sulfate deposition. Moreover, catalysts with enhanced oxidation abilities mitigate SO₂ chemical poisoning, thereby reducing the formation of metal sulfates. Specifically, MnCe-M-3H-4S, with the strongest oxidation ability and large pore size, showed the lowest MnSO₄ proportions (8.3 %) and a low sulfate deposition rate (0.07 % h^-1 for ammonia sulfates, 0.20 % h^-1 for metal sulfates), demonstrating its highest SO₂ tolerance. This study confirms that increasing the pore size and enhancing the oxidation ability of MnCe-based catalysts effectively reduce both the sulfate deposition rate and metal sulfate formation, thereby improving their SO₂ tolerance and practical applicability in low-temperature NH₃-SCR systems.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"391 ","pages":"126524"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel TiO₂/BiOI heterojunction-activated persulfate photocatalytic removal of tetracycline from pharmaceutical secondary wastewater.","authors":"Wenxin Wang, Sijie Zhou, Yu Zhu, Wenhui Li","doi":"10.1016/j.jenvman.2025.126523","DOIUrl":"10.1016/j.jenvman.2025.126523","url":null,"abstract":"<p><p>Bismuth oxyiodide (BiOI) can not only generate charge carriers (holes and electrons) under ultraviolet (UV) light irradiation but also activate potassium persulfate (PDS-K) significantly enhancing its catalytic performance. However, the narrow bandgap of single-phase BiOI leads to rapid recombination of hole/electron pairs. Considering the unique property of BiOI and the matching band structure between TiO₂ and BiOI, a novel TiO₂/BiOI binary heterojunction was constructed by coupling TiO₂ and BiOI. Microstructural characterization confirms that TiO₂ nanoparticles are uniformly loaded on the surface of BiOI nanosheets, forming a heterojunction with an intimate interface. Response surface methodology was employed to optimize the preparation parameters of TiO₂/BiOI. The as-fabricated TiO₂/BiOI/PDS-K catalyst demonstrates high and stable photocatalytic activity for tetracycline (TC) degradation under UV irradiation. Its reaction rate constant is 2.76-fold and 8.73-fold higher than those of the TiO₂/BiOI/UV and PDS-K/UV systems, respectively. Additionally, HCO₃^- can react with •OH in water, reducing the concentration of •OH, which also competing with TC for h⁺. This consequently diminishs the degradation efficiency of TC. The potential degradation pathways of TC were explored via liquid chromatography-mass spectrometry. Quenching experiment demonstrated the existence of a free radical pathway in the TiO₂/BiOI/PDS-K/UV system. In the free radical pathway, the primary reactive oxygen species were •SO₄^-, •OH, h⁺ and ¹O₂ radicals. This study provides profound insights into the construction of a reusable TiO₂/BiOI heterojunction integrated with PDS-K for treating industrial water environments.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"391 ","pages":"126523"},"PeriodicalIF":8.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}