环境•农林最新文献

{"title":"Optimizing ZnO nanoparticles basal application for enhancing rice yield, quality, and zinc enrichment","authors":"Haipeng Zhang, Xijun Yuan, Xinyue Liu, Jie Chen, Rui Wang, Hongcheng Zhang, Yanju Yang","doi":"10.1039/d5en00229j","DOIUrl":"https://doi.org/10.1039/d5en00229j","url":null,"abstract":"Zinc (Zn) oxide nanoparticles (ZnO NPs) have been increasingly utilized in agriculture as an innovative Zn fertilizer, prompting numerous studies to assess their impact on plant growth. However, research on the optimal application methods and dosages of ZnO NPs on rice remains limited. In this study, varied basal application dosages (0, 3.75, 7.5, 15, 30 and 60 kg hm-2) of ZnO NPs on rice yield, quality, and grain Zn content and distribution were investigated using field experiment in 2022 and 2023. Control experiments were also conducted including treatments without Zn application and those ZnSO4 applied at the same Zn dosage. Results showed that ZnO NPs and ZnSO4 application led to increases in rice grain yield of 0.34-0.50 t hm-2 and 0.06-0.40 t hm-2, respectively, over the two-year experiment compared to the treatment without Zn application. Furthermore, ZnO NPs improved rice quality by enhancing the head rice rate, reducing chalky grain percentage, and improving taste value and rice breakdown. The application of ZnO NPs significantly elevated Zn content in both milled and brown rice compared to the control. In 2022, Zn content in milled rice increased by 20.79%-41.67% and in brown rice by 25.20%-47.31%. In 2023, the increases were 12.18%-32.18% in milled rice and 17.68%-38.66% in brown rice. However, the utilization efficiency of ZnO NPs decreased from 7.02% to 1.26% as the application dosage increased from 3.75 kg hm-2 to 60 kg hm-2. Despite this decrease, the efficiency remained higher than that of ZnSO4 at the same Zn dosages. Considering yield, rice quality, Zn fertilizer utilization, and Zn accumulation, a basal application of 7.5-30 kg hm-2 ZnO NPs is optimal for improving rice yield, quality, and Zn accumulation. This study effectively demonstrated that ZnO NPs could serve as a highly efficient fertilizer for synergistically enhancing rice yield, quality, and Zn content in the edible grain fraction.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"68 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608485","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":"Aluminum (III) Ions Removal From Drinking Water Samples by Flower Like ZnO Nanoparticles with Solid Phase Extraction","authors":"Serkan Çalışkan,&nbsp;Elvan Hasanoğlu Özkan,&nbsp;Nurdan Kurnaz Yetim,&nbsp;Cemile Özcan","doi":"10.1007/s11270-025-07886-3","DOIUrl":"10.1007/s11270-025-07886-3","url":null,"abstract":"<div><p>The growing inadequacy of conventional water treatment techniques has prompted the search for novel approaches. Consequently, scientists are exploring alternative solutions. In this study, environmentally friendly flower-like nanoparticles synthesized by the hydrothermal method were investigated for their potential as adsorbents for heavy metal removal. To this end, flower-like ZnO nanostructures with varying morphology were synthesized, and the recovery of aluminum (Al) ions in water samples was investigated. The nanoparticles were characterized by Fourier Transform Infrared Spectrophotometer (FT-IR), X-ray Diffraction (XRD), Brunauer–Emmett–Teller (BET), and Scanning Electron Microscopy- Energy Dispersive X-ray (SEM–EDX). Then, parameters such as pH, eluent type/concentration, sonication time, and initial volume were optimized to obtain the highest efficiency for Al enrichment with NPs, and Al content was determined by flame atomic absorption spectroscopy (FAAS). In the developed method, high analytical performance was achieved in the FAAS system under optimum conditions. Optimum conditions for ZnO-1 recovery were determined to be pH 7.0, 1 M HNO₃ and 2.5 mL, 10 mg, 2.5 min, while they were found for ZnO-2 recovery to be pH 6.0, 1.0 M HNO₃ and 2.5 mL, 10 mg, 10 min. The applicability and accuracy of the method were tested with standard reference material (SRM), and satisfactory recovery results were obtained. The optimum recovery values for ZnO-1 and ZnO-2 were determined as 99.8% and 99.4%, respectively. Significant enrichment was achieved with an EF factor of 23 for ZnO-1 nanoflowers, and moderate enrichment was achieved with an EF factor of 5 for ZnO-2.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-07886-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Anthropogenic Marine Litter on the Maharashtra Coastline (India): Prevalence, Distribution, Sources, Impacts, Mitigation Strategies and Meta-Analysis","authors":"Sachin M. Gosavi,&nbsp;Samadhan K. Phuge,&nbsp;Ambadas R. Rodge,&nbsp;Sanjay S. Kharat,&nbsp;Sarika D. Torawane","doi":"10.1007/s11270-025-07864-9","DOIUrl":"10.1007/s11270-025-07864-9","url":null,"abstract":"<div><p>Anthropogenic marine litter (AML) along the 21 beaches of the Maharashtra coast was examined using Oslo and Paris (OSPAR) Commission guidelines to explore its sources, distribution, potential impacts, and mitigation strategies. The Clean Coast Index (CCI) and Hazardous Anthropogenic Beach Litter Index (HABLI) were used to evaluate beach cleanliness and safety, respectively. A total of 13,735 AML items were collected and categorized into 82 types, with an average abundance of 0.92 items/m² along the Maharashtra coast. Plastic was the most common type of AML (84.7%), with the top 10 items contribute 62.1% of the total, half of which originated from land-based sources. Sector 1 (Mumbai) accounted for 42.5% of AML, followed by Sector 3 (30%; Ratnagiri), Sector 2 (19.8%; Raigad), and Sector 4 (7.7%; Sindhudurg). Mitigation measures prioritizing Sectors 1 and 3 could reduce about 70% of AML entering the Arabian Sea. Globally, 67.2% of studies reported similar or higher AML levels compared to the Maharashtra coast. The CCI revealed that 57.2% of beaches had \"low to very low cleanliness,\" and 6.8% of the AML was hazardous, which could negatively affect coastal tourism and the regional economy. The study recommends policy measures for Maharashtra coast, such as improving waste management infrastructure, encouraging recycling, fostering responsible tourist behaviour, altering tourist perceptions, enforcing stringent regulations for managing tourism and fishery-related litter, and imposing penalties for illegal waste disposal.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Synergistic Effects of Iron Oxide Nanoparticles and Hydrogen Peroxide in Inhibiting Pseudomonas aeruginosa Growth to Combat Bacterial Contamination in Water Recovery Systems","authors":"Omid Sedighi, Tucker Johnsen, Appala Raju Badireddy, Matthew J Wargo, Amber L. Doiron","doi":"10.1039/d4en01164c","DOIUrl":"https://doi.org/10.1039/d4en01164c","url":null,"abstract":"Access to safe water is critical for public health. Pseudomonas aeruginosa is ranked as one of the most significant bacterial pathogens, threatening human health. Hydrogen peroxide and other biocides are often used to prevent the growth of bacteria, but the toxicity of these biocides is a major consideration when bacteria grow in water sources. This study explores the application of iron oxide nanoparticles (IONPs), both bare and polyacrylic acid-coated (PAA@IONPs), to enhance the effectiveness of hydrogen peroxide in eliminating P. aeruginosa, potentially reducing the required biocide concentrations and minimizing toxicity. X-ray diffraction crystallography (XRD) alongside X-Ray photoelectron spectroscopy (XPS) showed that the synthesized IONPs were magnetite nanoparticles and Fourier-transform infrared (FTIR) spectroscopy proved that PAA coating was successfully functionalized to IONPs. The hydrodynamic size of the IONPs decreased from 106 ± 11 nm to 84 ± 3 nm when coated with PAA. Transmission electron microscopy (TEM) images confirmed a similar decrease in dry size from 16 ± 3 nm to 9 ± 2 nm post-coating. A week after storage, there was a decrease in the concentration of stored IONPs and PAA@IONPs due to settling by 56 ± 14% and 22.6 ± 0.6%, respectively, demonstrating that PAA coating increased colloidal stability of the IONPs. Coated nanoparticles exhibited a more negative zeta potential, which was also indicative of greater colloidal stability. In the presence of 3.65 mg/ml IONPs and 182.25 mM of hydrogen peroxide, overnight bacterial growth was reduced by more than 63% compared to the sample with hydrogen peroxide alone. IONPs did not inhibit bacterial growth in the absence of hydrogen peroxide. Presence of 3.65 mg/ml IONPs and 182.25 mM of hydrogen peroxide killed 90.2% of bacterial cells during one hour of exposure. These findings indicate the potential benefit of IONPs to combat bacterial growth, which could be applied in industrial settings to reduce the biocide concentration needed to curb bacterial development.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"51 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608484","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":"Chitosan-integrated Ionic Liquid Solutions for Advanced Carbon Capture: Preparation and Performance Optimization","authors":"M. Shahinuzzaman,&nbsp;MS Jamal,&nbsp;Md. Shofiqul Islam,&nbsp;Arup Kumar Biswas,&nbsp;Mosharof Hossain","doi":"10.1007/s11270-025-07867-6","DOIUrl":"10.1007/s11270-025-07867-6","url":null,"abstract":"<div><p>This study explores the optimization of CO₂ absorption using chitosan-supported ionic liquids (CSILs) with KOH through Response Surface Methodology (RSM). The experimental design employed RSM to evaluate and optimize the effects of key variables, including IL percentage, KOH percentage, absorption time, and chitosan percentage, on the absorption efficiency. Statistical analysis and modeling were conducted to identify significant factors and their interactions, providing a comprehensive understanding of the absorption process. The elemental and morphological characteristics of the absorbents were studied using SEM, EDX, and FTIR analysis. The optimized conditions were predicted as 8.40% ionic liquid, 9.80% n-butanol, 81.80% chitosan solution, and 11.50 min absorption time. The predicted and experimental absorption capacities were 1.23 mg/g and 1.15 ± 0.06 mg/g absorbent, respectively. The strong relationship between the predicted CO₂ absorption capacity and experimental CO₂ absorption capacity confirms that the model is correct and consistent in finding the optimal absorption conditions. Therefore, the optimized CO₂ absorption conditions in chitosan-supported ionic liquids of the proposed protocol can be the easy, time-saving, and cost-effective way to capture the maximum amount of CO₂ by using the minimum amount of absorbent.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Study on the Adsorption Mechanisms and Process Optimization of Different Forms of Iron Hydroxide for Low-Level Uranium-Containing Wastewater","authors":"Ze Lin,&nbsp;Shaokui Liu,&nbsp;Jiankai Wang,&nbsp;Jie Wang,&nbsp;Shaohua Hu,&nbsp;Jie Liu,&nbsp;Xuecheng Wang,&nbsp;Wendong Feng,&nbsp;Qingzhi Zhou","doi":"10.1007/s11270-025-07874-7","DOIUrl":"10.1007/s11270-025-07874-7","url":null,"abstract":"<div><p>Uranium mining and the processing of nuclear materials generate significant quantities of low-level radioactive wastewater, which, if untreated, pose environmental and health risks. This study addresses the challenge of removing uranium from such wastewater by comparing the uranium ion removal performance and mechanisms of iron hydroxide colloids and powders. Iron hydroxide colloids were synthesized under alkaline conditions via an environmentally friendly oxidation process using ferrous sulfate and hydrogen peroxide. The colloids and powders were characterized using scanning electron microscopy (SEM), particle size analysis, and zeta potential measurements. The results showed that the colloid’s average particle size (17.61 nm) was significantly smaller than that of the powder (164.18 nm), resulting in a higher specific surface area, more uniform particle distribution, and increased adsorption site density. Zeta potential analysis indicated that the colloid reduced the solution potential from -22.13 mV to -15.46 mV, promoting uranium flocculation through double-layer compression, whereas the powder maintained a potential of -23.43 mV, preventing effective flocculation. Response surface methodology (RSM) was employed to optimize process parameters, identifying the optimal conditions as a pH of 8.82, a dosing concentration of 424.80 mg/L, and a settling time of 2.2 h. Under these conditions, the uranium removal rate achieved 98.38%, closely aligning with the predicted rate of 98.81%. This method outperforms conventional ferric salt flocculation by avoiding the introduction of additional impurity ions, with the only by-products being oxygen and water. Moreover, this study demonstrates for the first time how the adjustment of iron hydroxide colloids can enhance uranium removal efficiency, offering a promising and eco-friendly approach to treating radioactive wastewater.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-07874-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Associations Between Short-term Exposure to Ambient Air Pollution and Daily Asthma-related Adult Hospital Admissions in Urumqi City, China: a Time Series Study","authors":"Jiepeng Li,&nbsp;Limei Han,&nbsp;Feifei Wang,&nbsp;Yunpeng Li,&nbsp;Qimanguli Wushouer","doi":"10.1007/s11270-025-07869-4","DOIUrl":"10.1007/s11270-025-07869-4","url":null,"abstract":"<div><p>Accumulating epidemiological studies have suggested that short-term exposure to ambient air pollution heightens the risk of adult asthma attacks and results in increased daily asthma-related adult hospital admissions (DARAHAs). However, epidemiological evidence from Central Asia is limited. This study aims to evaluate the short-term impact of ambient air pollution on DARAHAs in Urumqi, a city in Central Asia. The distributed lag nonlinear model (DLNM) with quasi-Poisson regression was applied to model the associations between DARAHAs and concentrations of each ambient air pollutant, including nitrogen dioxide (NO₂), fine particulate matter (PM_2.5), particulate matter with aerodynamic diameters less than 10 μm (PM₁₀), sulfur dioxide (SO₂), ozone (O₃), and carbon monoxide (CO). And the weighted quantile sum (WQS) regression was used to explore the joint associations between the mixture of air pollutants and DARAHSs and to evaluate their relative importance. Further subgroup analyses by gender and age were performed. There were a total of 9,188 asthma admissions in the study period. We found significant positive associations between DARAHAs and concentrations of NO₂, PM_2.5, SO₂, CO in single-pollutant models. In the WQS models, short-term exposure to mixed air pollutants was positively associated with DARAHAs in the overall population, as well as in the female and elderly subgroups. Specifically, based on the degree of contribution to the WQS index, CO and SO₂ had greater weights (over 40%) in both the overall population and the elderly subgroup. CO contributed more significantly to this joint effect, with a value of 51.3% in the female subgroup. In summary, our results indicated significant positive associations between both single and mixed ambient air pollutants and an increased risk of adult asthma attacks, including PM₂.₅, CO, SO₂, and NO₂. Among these pollutants, CO and SO₂ exhibited the most substantial adverse effects on asthma attacks. Subgroup analyses revealed that elderly and female patients were more susceptible to asthma attacks induced by air pollution. These results underscore the importance of reducing air pollution emissions and limiting exposure for asthmatic individuals, particularly females and the elderly.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"An Investigative Study on the Prevalence of Microplastics in Commercial Bottled and Jar Water: A Nepalese Perspective","authors":"Rashika Pandit,&nbsp;Karuna Gautam,&nbsp;Yubraj Dahal,&nbsp;Bikash Adhikari","doi":"10.1007/s11270-025-07860-z","DOIUrl":"10.1007/s11270-025-07860-z","url":null,"abstract":"<div><p>MPs contamination in drinking water has become a global concern due to its impact on human health and the environment. This study investigated the presence and extent of MPs contamination in commercially available bottled and jar water in Nepal. A total of <b>56</b> samples from 11 brands were collected. Approximately 120 L of water was used for visual enumeration using a stereomicroscope, while another 120 L was used for polymeric analysis using μ-FTIR. The results revealed the presence of MPs in 100% of the samples, with an average concentration of 286 ± 42 MPs/L in jar water and 232 ± 28 MPs/L in bottled water. The lowest MPs concentration in bottled water was 107 ± 23 MPs/L, while the highest level of concentration was 365 ± 15 MPs/L. The fragments dominated fibers in all samples, with an abundance of 91% in bottles and 94% in jars. The particles ranging from 6.7–5,000 μm were identified. On average, fibers were more common in the size range of 100–500 μm, while fragments were more common in 20–50 μm in both bottles and jars. The most dominant polymer type was Ethylene/propylene copolymer (43%), followed by PET (32%), PE (11%), and PP (7%). Particles in various colors, including transparent, black, yellow, red, blue, and green, were observed, with transparent being the most common. The Terai region had the highest MPs concentration at 261 ± 28 MPs/L, followed by the Himalayan 209 ± 20 MPs/L and Hilly regions 196 ± 29 MPs/L.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Preparation of Cobalt Oxide Powders Synthesized by Green Chemistry Method and Improving the Antibacterial Performance of PES Membrane","authors":"Aya Alterkaoui,&nbsp;Serpil Gonca,&nbsp;Semih Dogan,&nbsp;Zelal Isik,&nbsp;Sadin Ozdemir,&nbsp;Volkan Filiz,&nbsp;Nadir Dizge","doi":"10.1007/s11270-025-07796-4","DOIUrl":"10.1007/s11270-025-07796-4","url":null,"abstract":"<div><p>Polyethersulphone (PES) composite membrane was prepared by green synthesized cobalt oxide (Co₃O₄) powders using the phase inversion method. Both Co₃O₄ powders and prepared composite membranes were characterized by using Scanning Electron Microscopy (SEM) with Energy Dispersive X-Ray Analysis (EDX) and X-Ray Diffraction (XRD) techniques. Three different concentration (0.5%, 1.0%, 2.0%) was chosen for composite membrane preparation. The performance of (Co₃O₄) powders blended composite membranes were evaluated for pure water flux, BSA solution flux, and BSA rejection. In the antioxidant test, DPPH process was assayed. The highest DPPH free radicals inhibition was 86.43% for Co₃O₄ powders synthesized from walnut leaves extract at concentration of 100 mg/L. <i>In vitro</i> DNA cleavage studies of Co₃O₄ powders with plasmid DNA were carried out by using agarose gel process and Co₃O₄ powders completely cleaved the DNA molecules. Co₃O₄ powders displayed remarkable antimicrobial ability against common bacterial (<i>Pseudomas aeruginosa</i>, <i>Escherichia coli</i>, <i>Enterococcus hirae</i>, <i>Legionella pneumophila</i>, <i>Staphylococcus aureus</i>, and <i>Enterococcus faecalis</i>) and fungal (<i>Candida tropicalis</i> and <i>Candida parapsilosis</i>) pathogens. Additionally, these newly prepared Co₃O₄ powders also showed considerable <i>E. coli</i> growth inhibiton efficiency. Furthermore, Co₃O₄ powders were very active as anti-biofilm agents producing activity by 77.5% and 89.02% against <i>S. aureus</i>, and <i>P. aeruginosa</i>, respectively. PES membrane blended with Co₃O₄ powders showed good antibacterial abilities. These results recommend that Co₃O₄ powders possess considerable biomedical and environmental applications.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-07796-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Modified Carbon-Based Fe (II)- ZIF Nanomaterials as a Highly-Selective Adsorbent for Phosphate Removal","authors":"Xu Liu,&nbsp;Yushan Li,&nbsp;Hao Zhou,&nbsp;Boxing An,&nbsp;Xingyu Yang,&nbsp;Cong Liu,&nbsp;Haiyan Liu,&nbsp;Hai Liang,&nbsp;Zhengqi Liang,&nbsp;Liansheng Li,&nbsp;Guicheng Li,&nbsp;Yingying Zuo","doi":"10.1007/s11270-025-07868-5","DOIUrl":"10.1007/s11270-025-07868-5","url":null,"abstract":"<div><p>As a porous carbon material, oil sludge pyrolysis residue (OSPR) is widely used in the removal of pollutants in water. Due to the blockage of pore structure and low specific area, its adsorption effect is restricted. In this paper, acid etching strategy is adopted to solve the problem of pore blockage, and Fe (II) -ZIF is loaded to improve the specific surface area and adsorption location of material. It can achieve the purpose of efficiently removing phosphate from water and realize the high value utilization of OSPR. Herein, Fe (II) -ZIF/ae-OSPR with Fe (II) metal center and rich vacancy structure was successfully synthesized by using Fe (II) -ZIF as the metal organic skeleton and ae-OSPR as the carrier carbon skeleton for phosphate removal from water. The prepared Fe (II) -ZIF/ae-OSPR has a high adsorption capacity for phosphate, with a maximum adsorption capacity of 198.3 mg g⁻¹, and still maintained a high adsorption capacity for phosphate in the pH range of 1–6. The adsorption kinetics showed that the main mechanism of phosphate adsorption was chemical adsorption (R²_Second = 0.9617 &gt; R²_First = 0.9357), and the thermodynamic model showed that the adsorption process was endothermic reaction. The adsorption capacity of Fe (II) -ZIF/ae-OSPR for phosphate was not affected by the coexisting anions (Cl⁻, CO₃²⁻, NO₃⁻ and SO₄²⁻), and the adsorption capacity was still maintained at 190.8 mg g⁻¹ after 6 cycles of regeneration. The adsorption mechanism showed that the removal of phosphate by Fe (II) -ZIF/ae-OSPR was the result of the charge-force effect of amine group and Fe (II) on phosphate group. The adsorption efficiency of Fe (II) -ZIF/ae-OSPR for phosphate in practical wastewater shows that Fe (II) -ZIF/ae-OSPR has a good engineering application prospect.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}