Preparation of NH2-MIL-101(Fe) Metal Organic Framework and Its Performance in Adsorbing and Removing Tetracycline

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(18), С. 9855 - 9855

Опубликована: Сен. 12, 2024

Tetracycline’s accumulation in the environment poses threats to human health and ecological balance, necessitating efficient rapid removal methods. Novel porous metal–organic framework (MOF) materials have garnered significant attention academia due their distinctive characteristics. This paper focuses on studying adsorption performance of amino-modified MIL-101(Fe) towards tetracycline, along with mechanisms. The main research objectives conclusions are as follows: (1) NH2-MIL-101(Fe) MOF were successfully synthesized via solvothermal method, confirmed through various characterization techniques including XRD, FT-IR, SEM, EDS, XPS, BET, TGA. (2) exhibited a 40% enhancement tetracycline compared MIL-101(Fe), primarily chemical following pseudo-second-order kinetics. process conformed well Freundlich isotherm models, indicating multilayer heterogeneous Thermodynamic analysis revealed spontaneous endothermic reaction. (3) An increased adsorbent dosage temperature correspondingly improved NH2-MIL-101(Fe)’s efficiency, optimal observed under neutral pH conditions. These findings provide new strategies for effective from environment, thus holding implications environmental protection.

Язык: Английский

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Synergistic Enhancement of Oxytetracycline Hydrochloride Removal by UV/ZIF-67 (Co)-Activated Peroxymonosulfate

Water, Год журнала: 2024, Номер 16(18), С. 2586 - 2586

Опубликована: Сен. 12, 2024

This study developed a new system for removing antibiotics using UV/ZIF-67 (Co)-activated peroxymonosulfate. The presence of antibiotic organic pollutants in urban sewage presents substantial challenge treatment technologies. Due to the persistent chemical stability antibiotics, their low environmental concentrations, and resistance degradation, effectively residual remains significant issue wastewater treatment. introduces an eco-friendly photocatalytic technology designed enhance removal oxytetracycline (OTC) from municipal (Co)/PMS system. results showed that compared with UV, UV/PMS, ZIF-67 (Co), (Co)/PMS, (Co) systems, had highest OTC rate. When 10 mg 1 mM PMS were applied 100 mL 30 mg/L solution, degradation efficiency reached 87.73% under 400 W ultraviolet light. Increasing dosage can improve rate OTC, but marginal benefit additional is reduced. was observed at weakly acidic pH, which may be due potential damage internal structure catalyst reduced performance extreme pH conditions. influence chloride ions nitrate on reaction minimal, while bicarbonate exhibit inhibitory effect OTC. exhibits adaptability various water sources, including tap water, Guitang River pure water. free radical identification indicate hydroxyl sulfate groups system, both play important roles offers valuable insights technical support green, efficient, environmentally friendly wastewater.

Язык: Английский

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Single atoms in environmental catalysis: Breakthroughs in synthesis and application

Journal of Water Process Engineering, Год журнала: 2024, Номер 68, С. 106319 - 106319

Опубликована: Окт. 14, 2024

Язык: Английский

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Assessing the Environmental Impact of Municipal Waste on Energy Incineration Technology for Power Generation Using Life Cycle Assessment Methodology

Toxics, Год журнала: 2024, Номер 12(11), С. 786 - 786

Опубликована: Окт. 29, 2024

The life cycle assessment methodology is a comprehensive environmental impact evaluation approach rooted in the "cradle-to-grave" concept. This study takes municipal solid waste incineration power plant central China as an example to comprehensively explore potential ecological and impacts of generation through methods. Burning one ton can recover 7342 joules thermal energy. Compared with traditional landfill, reduce greenhouse gas emissions by about 30%, global warming -0.69 kg carbon dioxide equivalent. Amongst impacts, land, freshwater, marine ecosystems possess greatest toxicity, followed harmful effects on human health influence ozone-producing photochemical pollution. Lastly, there comes terrestrial acidification, whereas other types be relatively disregarded comparison. In process generation, warming, ionizing radiation, fossil resource scarcity are less than zero, indicating that this environmentally friendly process. response above-mentioned it necessary pay attention improving efficiency, optimizing leachate treatment, reducing coal use, controlling acidic urban generation. research offers insights into advancing sustainable technologies for utilizing energy resource.

Язык: Английский

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Mechanism of Enhanced Fluoride Adsorption Using Amino-Functionalized Aluminum-Based Metal–Organic Frameworks

Water, Год журнала: 2024, Номер 16(20), С. 2889 - 2889

Опубликована: Окт. 11, 2024

Due to the increasing fluoride concentrations in water bodies, significant environmental concerns have arisen. This study focuses on aluminum-based materials with a high affinity for fluorine, specifically enhancing metal–organic frameworks (MOFs) amino groups improve their adsorption and defluorination performance. We systematically investigate factors influencing mechanisms governing behavior of amino-functionalized MOF aqueous environments. An SEM, XRD, FT-IR characterization confirms successful preparation NH2-MIL-101 (Al). In 10 mg/L ion solution at pH 7.0, removal efficiency increases dosage (Al), although marginal improvement decreases beyond 0.015 g/L. Under identical conditions, capacity (Al) is seven times greater than that (Fe). demonstrates effective across broad range, superior uptake acidic conditions. At concentration 7 mg/L, g 3.0, equilibrium achieved within 60 min, 31.2 mg/g. analysis using isotherm models reveals follows monolayer model, while kinetic studies indicate predominant mechanism chemical adsorption. research provides scientific basis advanced treatment fluoride-containing wastewater, offering theoretical practical contributions.

Язык: Английский

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Advanced TiO2-Based Photocatalytic Systems for Water Splitting: Comprehensive Review from Fundamentals to Manufacturing

Molecules, Год журнала: 2025, Номер 30(5), С. 1127 - 1127

Опубликована: Фев. 28, 2025

The global imperative for clean energy solutions has positioned photocatalytic water splitting as a promising pathway sustainable hydrogen production. This review comprehensively analyzes recent advances in TiO2-based systems, focusing on materials engineering, source effects, and scale-up strategies. We recognize the advancements nanoscale architectural design, engineered heterojunction of catalysts, cocatalyst integration, which have significantly enhanced efficiency. Particular emphasis is placed crucial role chemistry system performance, analyzing how different sources-from wastewater to seawater-impact evolution rates stability. Additionally, addresses key challenges scaling up these including optimization reactor light distribution, mass transfer. Recent developments artificial intelligence-driven discovery process are discussed, along with emerging opportunities bio-hybrid systems CO2 reduction coupling. Through critical analysis, we identify fundamental propose strategic research directions advancing technology toward practical implementation. work will provide comprehensive framework exploring advanced composite developing efficient scalable multifunctional simultaneous

Язык: Английский

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Study on Carbon Emission Accounting Method System and Its Application in the Iron and Steel Industry

Sustainability, Год журнала: 2025, Номер 17(9), С. 3829 - 3829

Опубликована: Апрель 24, 2025

Amid global climate change and the pursuit of carbon neutrality, steel industry, a major source emissions, urgently requires robust scientific emission accounting system to achieve sustainable development. This study systematically examines methods in constructing comprehensive framework that includes method classification, application analysis, future trend projections. The aim is provide theoretical support practical guidance for industry’s low-carbon transition. Through in-depth analysis existing methods, this summarizes their characteristics regarding boundaries, calculation principles, data requirements, explores current applications limitations industry. Looking ahead, research anticipates with advancement new-generation information technologies increasing governance demands, industry will evolve towards digitalization, refinement, standardization, offering more reliable transformation. offers foundation direction precise management enterprises provides basis policymakers develop effective reduction policies strategies, thereby promoting development

Язык: Английский

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Evaluation and Prediction of Water Resources Carrying Capacity in Dongting Lake Area Based on County Unit and DWM-BP Neural Network Model

Water, Год журнала: 2024, Номер 16(23), С. 3480 - 3480

Опубликована: Дек. 3, 2024

Evaluation of water resource carrying capacity is one the methods used to measure degree realization and environmental planning. This study takes 26 county-level units in Dongting Lake area Hunan Province as evaluation object screens 22 indicators for capacity. The comprehensive weight resources calculated using double (DWM) based on analytical hierarchy process (AHP) entropy weighting method. And then, back propagation (BP) neural network predict evolution alarm situation results show following: (1) In terms time trend, generally stable between overload critical state, but change trends each county are very different; (2) spatial distribution, western southern regions relatively high, while that Yueyang urban eastern region low, showing a pattern “high west low east”; (3) among criterion layers, support force has highest smallest change, economic largest weight. decline closely related speed development; (4) by 2025, Nanxian County, Hanshou Xiangyin County will be significantly increased from Dingcheng District gradually turn overloaded status. first attempt evaluate at level so more applicable grass-roots administrative with decision-making power. double-weighting method determine weights can accurate.

Язык: Английский

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Application of Biomass Functional Materials in the Environment

Water, Год журнала: 2024, Номер 16(24), С. 3593 - 3593

Опубликована: Дек. 13, 2024

With the intensification of global environmental issues, traditional materials science is facing unprecedented challenges [...]

Язык: Английский

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