Applied Water Science最新文献

{"title":"Enhancing water productivity of solar still using thermal energy storage material and flat plate solar collector","authors":"Waleed A. Abdelmaksoud","doi":"10.1007/s13201-024-02340-x","DOIUrl":"10.1007/s13201-024-02340-x","url":null,"abstract":"<div><p>In this research, the impact of integrating solar still with thermal energy storage material and flat plate solar collector (FPSC) on the freshwater productivity was experimentally investigated. The experiments were conducted on three types of similar-sized solar stills under climate conditions of Saudi Arabia. The first type was a conventional solar still (CSS), without any modifications. The second type was a modified solar still (MSS-1), CSS integrated with natural stones in the still basin. The third type was a modified solar still (MSS-2), CSS integrated with both natural stones and FPSC. Three types of natural stones with same quantity were selected and individually tested in the MSS-1 and MSS-2 simultaneously (each stone type on one day). The corresponding experimental results of MSS-1 showed a 11–32% increase in the daily freshwater yield, compared to CSS, indicating a minimal effect of natural stones utilization on the freshwater productivity. The MSS-2 showed a 155–183% increase in the daily freshwater yield, compared to CSS, indicating a significant effect of basin water heating on the freshwater productivity. The total dissolved solids (TDS) level was measured at 112 ppm, which complies with the permissible limits for drinking water quality standards. The economic analysis revealed that the cost to produce one liter of freshwater is 0.028, 0.022, and 0.027 $ from CSS, MSS-1, and MSS-2, respectively. Additionally, the benefit–cost ratio (BCR) analysis demonstrated the economic feasibility of the constructed solar still, with a BCR value of 2.1.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02340-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Dynamic coupling of qualitative–quantitative models for operation of water resources based on environmental criteria","authors":"Saeid Farokhi,&nbsp;Mohsen Najarchi,&nbsp;Hosein Mazaheri,&nbsp;Saeid Shabanlou","doi":"10.1007/s13201-024-02356-3","DOIUrl":"10.1007/s13201-024-02356-3","url":null,"abstract":"<div><p>Concerning issues include the distribution of scarce water resources, the quality of utilized water, environmental repercussions, and regulations for the sustainable use of water resources. In the management of water resources, optimal qualitative–quantitative exploitation of surface water bodies is regarded as a desirable strategy. The Dez River surface water system from the Dez regulatory dam to Band-e-Ghir is selected in the current paper to create a qualitative–quantitative model that can determine the best exploitation strategies. A dynamic linkage between qualitative and quantitative models is built in order to simulate the current exploitation conditions under the umbrella of the best-case scenario. In this coupled system, hydraulic relationships are established between all of the system’s components. The available data are shared between two models in this structure to simulate the qualitative and quantitative effects of surface water. Then, a new structure is produced to derive the best policies for exploiting the dam and the river by connecting the multi-objective particle swarm optimization algorithm with the qualitative–quantitative coupled model body. The monthly river environmental demand is one of the decision variables in the ideal scenario, and the goals include boosting the percentage of supply demands and minimizing the violation of quality standards. The best-case scenario’s implementation increases the likelihood that all plain demands will be met, regardless of priority. Furthermore, in comparison with the reference scenario, the results of the optimal scenario show that not only are the concentrations of contaminants and qualitative parameters increased, but there are also only minimal violations of the quality and pollution standards of the river water in the majority of river points, particularly in the locations of agricultural withdrawals. The findings demonstrate that using the qualitative–quantitative dynamic relationship between water resources and the development of the coupled model using the NSGA-II algorithm allows us to better plan for the appropriate use of existing water resources by taking into account all stakeholders in such a way that, in addition to meeting needs, maintains the river quality close to standard limits throughout the exploitation period. By using this strategy, users will be informed of the negative effects of their actions, as well as the encroachment on river boundaries and associated consequences.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02356-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Effect of several amines on the morphology, structure, purity, and photocatalytic activity of Ni6MnO8 nanostructures","authors":"Masoumeh Yaqoubi,&nbsp;Masoud Salavati-Niasari,&nbsp;Mojgan Ghanbari","doi":"10.1007/s13201-024-02347-4","DOIUrl":"10.1007/s13201-024-02347-4","url":null,"abstract":"<div><p>Water and wastewater contaminated by dyes are becoming a bigger global problem. The drawbacks of conventional treatment methods are their high prices, lack of sustainability, and partial elimination. Metal oxide semiconductor-based photocatalytic degradation has lately supplanted these techniques. One method promising for completely degrading azo dyes found in wastewater is photocatalysis. Ni₆MnO₈ nanostructures, a novel photocatalyst, were created in this study to aid in the photocatalytic breakdown of several dyes, especially Eriochrome Black T (EBT). These nanostructures were fabricated through a simple and low-cost co-precipitation method using different amines, including ammonia, tetraethylenepentamine, triethylenetetramine, and ethylenediamine (EDA) as precipitating and capping agents. The pure phase of Ni₆MnO₈ was achieved in the presence of ammonia. According to the DRS result (bandgap = 2.6 eV), visible light was used to conduct photocatalytic degradation tests on a several dyes solution. The results show that the degradation is greatly influenced by the type of catalyst, dye solution’s starting concentration, pH of dye solution, and the amount of catalyst used. Increased catalyst dose and acidic media result in increased degradation. The maximum degradation rate of Ni₆MnO₈ prepared in the presence of ammonia on EBT is 96.3% under visible light, and its pseudo-first-order reaction rate constant is 0.0182 min^–1. The scavenger experiment revealed the hydroxyl radicals performed the superior role in the degradation of EBT. The recycling test indicated the high stability of Ni₆MnO₈, with the yield reduced by only 5.6% after five cycles.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02347-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142934612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Morphometric and land use land cover analysis for the management of water resources in Guder sub-basin, Ethiopia","authors":"Rahel Gezahegn,&nbsp;Filagot Mengistu","doi":"10.1007/s13201-024-02325-w","DOIUrl":"10.1007/s13201-024-02325-w","url":null,"abstract":"<div><p>Morphometric analysis is essential for understanding the surface hydrological processes within a watershed. It enables the prediction of runoff and infiltration patterns, assesses soil erosion risks, and helps in the planning of effective water resource management practices. The integrated approach of morphometric analysis and land use land cover (LULC) analysis is vital for addressing water resource challenges and ensuring the sustainable management of watersheds. The present study aims to measure the morphometric and LULC parameters to assess and understand the morphological and hydrological properties of the Guder sub-basin. The Guder sub-basin is an ungauged watershed facing water resource challenges throughout the year. The study used data from the Shuttle Radar Topographic Mission (SRTM) Digital Elevation Model (DEM) to extract the stream network and sub-watershed (SW) through ArcGIS10.4 environment using Arc hydro tools and the SWAT model. Fourteen morphometric parameters including linear, areal, and relief were computed over thirty sub-watersheds for prioritization of watersheds. The land use land cover analysis was conducted using the Google Earth Engine platform to examine how anthropogenic factors affect hydrologic aspects. The Guder sub-basin LULC was divided into seven classes: bare land, built-up, bushland, cropland, forest, grassland, and waterbody, with 93% overall accuracy. Based on the combined results obtained, the sub-watersheds were classified into five priority categories: very low (&gt; 9.23), low (8.82–9.23), medium (8.14–8.58), high (7.66–8.11), and very high (&lt; 7.66). Sub-watersheds SW3, SW7, SW14, SW17, SW22, and SW29 were identified as high priority watersheds with a high probability of runoff and erosion. Sub-watersheds SW6, SW9, SW11, SW13, SW28, and SW30 were identified as low priority watersheds, indicating good infiltration. Therefore, immediate action should be applied for appropriate land and water management to mitigate the risks and optimize the benefits in these areas. The outcome of this research provides knowledge of watershed hydrologic information before planning and implementing land and water management practices.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02325-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142934618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Assessment of microplastic release from facial and body scrubs in aquatic ecosystems","authors":"Afsaneh Esmaeili Nasrabadi,&nbsp;Fatemeh Kabirinia,&nbsp;Ziaeddin Bonyadi","doi":"10.1007/s13201-024-02350-9","DOIUrl":"10.1007/s13201-024-02350-9","url":null,"abstract":"<div><p>This study investigated the presence and characteristics of MPs in commonly used face and body scrubs. Six commercially available scrub brands were analyzed using various techniques, including SEM, FTIR, EDX, and DLS. The scrubs examined in this study were meticulously selected from markets in Mashhad. These cosmetic products were treated with H₂O₂ and agitated for 15 min. Finally, the shape, color, and total number of MPs were analyzed using microscopy. The findings revealed that the concentration of MPs detected per gram of scrub across the different brands was 298.66 ± 60 particles. The MPs identified in all brands were predominantly composed of PE. The results indicated a significant correlation between the number of MPs and the brand used (<i>P</i> value &lt; 0.05). The findings indicated that MPs were primarily composed of carbon (84.42%) and oxygen (13.73%). These materials displayed numerous grooves and a considerable degree of surface irregularity. Furthermore, the zeta potential of the MPs in all samples was measured at − 36 mV. According to the results, 50% of the MPs were colorless, 36% were white, and 14% had a shiny appearance (<i>P </i>value &lt; 0.05). Additionally, the forms of the MPs were observed in the following order of prevalence: irregular (38%), filamentous (31%), sharp (15%), fragmentary (8%), and spherical (8%) (<i>P</i> value &lt; 0.05). The sizes of the MPs ranged from 0.147 to 2.133 mm (<i>P </i>value &lt; 0.05). The MPLI analysis indicated that approximately half of the scrubs exhibited significant contamination. The study also estimated the potential release of MPs into the environment via wastewater treatment plants, underscoring the substantial contribution of cosmetics to MP pollution.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02350-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142934557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Construction of S-scheme CuFe12O19/CuS green nanocomposite for effective photocatalytic degradation of tetracycline from aqueous solution: mechanism, recyclability, and kinetic study","authors":"Hajar Barkhor,&nbsp;Mohammad Ali Nasseri,&nbsp;Alireza Amarzadeh,&nbsp;Kasra Nateq,&nbsp;Bahman Ramavandi,&nbsp;Negin Nasseh","doi":"10.1007/s13201-024-02346-5","DOIUrl":"10.1007/s13201-024-02346-5","url":null,"abstract":"<div><p>This research was designed to evaluate the performance of the CuFe₁₂O₁₉/CuS/Xenon system in the degradation of tetracycline in aqueous solutions. In this study, after green synthesis of nanocomposite using the extract of the <i>Artemisia</i> plant, its properties were determined by XRD, FTIR, <i>FESEM</i>, TEM, BET, XPS, DRS, DLS, EDS, <i>VSM,</i> and PL. In addition, parameters affecting the photocatalytic degradation of tetracycline, including time, pH, TC initial concentration, and nanocomposite dose, were assessed. The findings showed that the degradation efficiency increases with increasing pH and catalyst dosage. Under optimum circumstances (pH = 9, nanocomposite dose of 0.5 g/L, and time 200 min), the process efficiency with concentration of 20 mg/L was 100%. The kinetics of the degradation rate of tetracycline obeyed the pseudo-first-order equation. In addition, the results show that after six consecutive cycles, the synthesized catalyst’s ability did not significantly reduce. The results of the mineralization tests revealed that the COD and TOC degradation of the synthetic solution of tetracycline with a concentration of 20 mg/L reached 87.25% and 73.06%, respectively, in the optimal reaction conditions. The scavenger experiments confirmed that OH plays the most crucial role in the decomposition process of tetracycline. Generally, the CuFe₁₂O₁₉/CuS/Xenon photocatalytic system can effectively degradation tetracycline from aqueous environments.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 2","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02346-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142934548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Dissipative disorder analysis of Homann flow of Walters B fluid with the applications of solar thermal energy absorption aspects","authors":"Latif Ahmad,&nbsp;Assmaa Abd-Elmonem,&nbsp;Saleem Javed,&nbsp;Muhammad Yasir,&nbsp;Umair Khan,&nbsp;Yalcin Yilmaz,&nbsp;Aisha M. Alqahtani","doi":"10.1007/s13201-024-02335-8","DOIUrl":"10.1007/s13201-024-02335-8","url":null,"abstract":"<div><p>Encountering of entropy generation is meaningful while investigating the energy loss during the operational mechanical system. In particular, the flow of fluid experiencing friction drag and due to which a significant amount of heat transfer occurred. Thus, the thermodynamic system energy conversion is one of the measures of the lost available work and is known as irreversibility. Avoiding of such energy loss can be minimized by introducing the concept of hybridization during the liquid dynamics. This work is initiated to formally characterize and address the significance of irreversible process during the typical Homann flow of viscoelastic liquid. The flow with heat and mass balance aspects are further characterize with the inclusion of thermophoretic and Brownian motion factors. The flow configuration is interpreted in terms of gravitationally affected vertical cylindrical disk, for a better understanding of the impact of irreversible processes, more physical effects in terms of heating source/sink, chemical reaction and solar thermal radiation. New physical impacts are described numerically in terms of flow speed temperatures, nanoparticle volume fraction, displacement thicknesses and entropy generation. Perturbation method is utilized for the reduction of the fourth-order mathematical equation for reducing the problem in to well-posed from ill-posed status. The numerical analysis is carried out by applying one of the built-in commands while using MATLAB software. The buoyancy force factor enhanced the liquid speed, and the concentration of the liquid was determined with uplifted conduct for higher values of chemical reaction parameters. The overall entropy rate is reduced as the Brinkman number and magnetic parameter are increased. The heat transfer flow is increased by internal heat generation. Higher Prandtl and Schmidt numbers significantly affected the isotherms and volume fraction contours.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02335-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Human health risk assessment of drinking water using heavy metal pollution index: a GIS-based investigation in mega city","authors":"Maria Latif,&nbsp;Iqra Nasim,&nbsp;Mubeen Ahmad,&nbsp;Rab Nawaz,&nbsp;Arifa Tahir,&nbsp;Muhammad Atif Irshad,&nbsp;Aamal A. Al-Mutairi,&nbsp;Ali Irfan,&nbsp;Sami A. Al-Hussain,&nbsp;Magdi E. A. Zaki","doi":"10.1007/s13201-024-02341-w","DOIUrl":"10.1007/s13201-024-02341-w","url":null,"abstract":"<div><p>Contaminated drinking water poses a significant threat to public health, particularly in urban areas where industrial and environmental pollutants may affect water quality. However, there is a lack of comprehensive studies that evaluate the specific health risks associated with harmful metal contaminants in drinking water. This study seeks to address this gap by assessing water quality and metal contamination using pollution indices and human health risk assessments. The findings will help to identify potential health risks for urban residents and guide the development of targeted interventions and improved water management strategies. The groundwater samples were collected from five different zones in Kasur rural area. A total of 25 samples were collected by random sampling from hand pumps during 4 months (March–June, 2021) for determining various physiochemical attributes (pH, electric conductivity, turbidity, total hardness, chloride, and phosphate) and potentially toxic elements (arsenic, cadmium, and lead) using standard protocols. Results revealed that almost all the physicochemical attributes were close to the World Health Organization (WHO) guidelines. The water quality assessment revealed that pH levels ranged from 7.4 to 9.0, electrical conductivity (EC) between 150 µS/cm and 800 µS/cm, and average turbidity of 12 ± 3.29 NTU, total hardness varied from 200 to 1000 mg/L. Chloride and phosphate concentrations averaged 304 ± 1.28 mg/L and 4.51 ± 1.99 mg/L, respectively. Cadmium levels ranged from 0.15 to 0.53 mg/L, while lead and arsenic concentrations reached up to 7.47 mg/L, exceeding the WHO guidelines. Heavy metal pollution index (HPI) values of all sites were less than critical value of 100. However, by considering the HPI classes, all the locations had high HPI (&gt; 30) class indicating critically polluted water with heavy metals. Through exposure to drinking water, heavy metals had a significant impact on non-carcinogenic risk (HI &gt; 1), according to the hazard index values determined by the human health risk analysis for children, infants, and adults. As compared with metals carcinogenic risk values, lead posed high risks to adults than children and infants as mean CR values for adults, children, and infants were 1.48E + 00, 1.40E + 00, and 7.60E-01, respectively. It is suggested that for drinking water supplies, there is need of installation of treatment plants in the industrial areas to minimize the risk of metal contamination and health issues.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02341-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Evaluating land use ımpact on evapotranspiration in Yellow River Basin China through a novel GSEBAL model: a remote sensing perspective","authors":"Sheheryar Khan,&nbsp;Wang Huiliang,&nbsp;Umer Nauman,&nbsp;Muhammad Waseem Boota,&nbsp;Zening Wu","doi":"10.1007/s13201-024-02345-6","DOIUrl":"10.1007/s13201-024-02345-6","url":null,"abstract":"<div><p>Evapotranspiration (ET) is critical to surface water dynamics. Effective water resource management necessitates an accurate ET estimation. In the Yellow River Basin China, a study area, cutting-edge technologies are needed to improve large-scale ET estimates. This study estimates ET using GSEBAL, an advanced ET estimation algorithm. Google Earth Engine integrates the surface energy balance model-based GSEBAL. The technique includes the collection, preparation, and calculation of ET using Landsat imagery and ERA5-Land meteorological data from 1990 to 2020. The study examined satellite LST, albedo, and NDVI data. The GSEBAL model calculates soil heat flow, net radiation, and sensible heat flux. The study tested the GSEBAL model utilizing essential ET datasets such as ECOSTRESS, MOD16, and SSEBop. The study showed that the model effectively predicted daily and seasonal ET variations in different climates. Root mean squared error, bias, and Pearson's correlation coefficient verified the model's reliability. The study also analyzed land use and land cover (LULC) over 30 years using Random Forest classifiers. In the 1990–2020 YRBC ET, land use changes affect ET rates annually and seasonally. The study area experiences changes in LST, NDVI, and LULC. Maximum ET values rose from 214.217 mm in 1990 to 234.891 mm in 2000. The pattern flipped in 2020, decreasing to 221.456 mm. In 2010, Summer had the highest ET, 484.455 mm. 2020 spring ET is 314.727 mm. Low ET decreased from 24.652 mm in 1990 to 18.2 mm in 2020, reducing water loss. Fall ET peaks at 24.9 mm in 2020; winter ET is 18.75 mm.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02345-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"S-Scheme CuMn2O4/g-C3N4 heterojunction: fabrication, characterization, and investigation of photodegradation potential of organic pollutants","authors":"Masoumeh Yaqoubi,&nbsp;Masoud Salavati-Niasari,&nbsp;Mojgan Ghanbari","doi":"10.1007/s13201-024-02348-3","DOIUrl":"10.1007/s13201-024-02348-3","url":null,"abstract":"<div><p>Outstanding photocatalytic performance can be achieved by designing and building heterojunction photocatalysts with a suitable interfacial contact and staggered energy band structure. A simple two-step technique was used to manufacture hybrid inorganic/organic nanocomposites made of copper manganese oxide (CuMn2O4) and g-C3N4. Multiple techniques were employed to characterize the hybridized CuMn2O4/g-C3N4 heterostructure. CuMn2O4/g-C3N4 (0.2:1) efficiently destroyed 91% of erythrosine (10 ppm) below visible lamp in 90 min, being better than the performance of both CuMn2O4 and g-C3N4 and has superior stability. The primary reactive species involved in the photocatalytic breakdown of erythrosine over the nanocomposite were photogenerated superoxide ion radicals. The research results led to the proposal of a photocatalytic mechanism via the nanocomposite for the degradation of erythrosine. Based on the experimental data, a unique S-scheme model was presented to illuminate the charge transport mechanism. This work offers a straightforward method for creating innovative step-scheme photocatalysts for environmental and associated applications. This study revealed that the combination of CuMn2O4 and g-C3N4 as composites shows great potential for efficient photocatalytic dye degradation applications.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"15 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02348-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}