In-situ sulfonated mesoporous silica as ZnO nanomaterial support for enhanced dyes photodegradation

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104381 - 104381

Опубликована: Март 1, 2025

Язык: Английский

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Efficient Removal of Sparfloxacin Antibiotic from Water Using Sulfonated Graphene Oxide: Kinetics, Thermodynamics, and Environmental Implications

Опубликована: Янв. 1, 2024

Pharmaceutical contamination poses a significant threat to global health. Due their high solubility in water, antibiotics are difficult remove. This study produced and used sulfonated graphene oxide (SGO) adsorb sparfloxacin from aquatic environments. UV-Visible, Fourier transform infrared (FTIR), X-ray diffraction (XRD), XPS, SEM, TEM, EDX, particle size, Thermogravimetric analysis (TGA), acid-base titration were characterize synthesized SGO particles. The BET technique determined SGO's surface area (32.25 m2/g). calculated pHPZC of was 2.5. Sparfloxacin adsorption onto analyzed using duration, medium pH, adsorbent dosages, concentration, cations, solution temperature. pseudo-second-order kinetic model better described experimental data than the pseudo-first-order Elovich models. Equilibrium isotherm supported Langmuir model, revealing peak absorption capacity 1428.57 µmol/g at 25 ºC. models' applicability assessed error analysis. A thermodynamic revealed an endothermic, spontaneous process with change entropy (∆S) 114.15 J/mol K enthalpy (∆H) 8.44 kJ/mol. regeneration showed that efficiency topped 90% after five cycles.

Язык: Английский

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Antimicrobial potential and protein binding affinity of a hybrid ternary nanocomposite matrix: Zinc oxide functionalization with poly(vinyl alcohol)-sulphonated graphene oxide-poly pyrrole

Inorganic Chemistry Communications, Год журнала: 2024, Номер 167, С. 112790 - 112790

Опубликована: Июнь 26, 2024

Язык: Английский

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Exploring the potential of anti-bacterial and conductive ZnO–Al2O3/SPES proton exchange membrane applied in MFC for sustainable energy generation and sugar beet industry effluent treatment

Renewable Energy, Год журнала: 2024, Номер 231, С. 121003 - 121003

Опубликована: Июль 16, 2024

Язык: Английский

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Facile synthesis of hierarchical NaX zeolite from natural kaolinite for efficient Knoevenagel condensation

Chinese Journal of Chemical Engineering, Год журнала: 2023, Номер 65, С. 75 - 84

Опубликована: Авг. 20, 2023

Язык: Английский

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Efficient Adsorptive Removal of Levofloxacin Using Sulfonated Graphene Oxide: Adsorption Behavior, Kinetics, and Thermodynamics

Heliyon, Год журнала: 2024, Номер 10(22), С. e40319 - e40319

Опубликована: Ноя. 1, 2024

Water pollution by antibiotic residues poses a potential threat to environmental and human health. Graphene-based materials are highly stable, recyclable effective adsorbents for efficiently removing antibiotics from polluted water. In this study, the adsorption behavior of levofloxacin onto sulfonated graphene oxide (SGO) was investigated varying contact period, solution pH, adsorbent quantity, concentration, inorganic ions, temperature. Spectroscopic microscopic techniques were employed confirm adsorptive interaction between SGO. The process most accurately characterized pseudo-second-order kinetic model Langmuir isotherm model, as indicated their high correlation coefficients (R 2) low root-mean-square error (RMSE) values. maximal quantity that can be adsorbed SGO determined 1250 μmol/g at pH 4 25 °C using model. Thermodynamic studies reveal is endothermic spontaneous in nature. Taking into consideration results adsorption, desorption regeneration studies, it proposed applied an economic viable agent removal aqueous environment.

Язык: Английский

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Thermodynamic Insights into the Acid Strength of Sulfonate Linkers in Confined Space

The Journal of Physical Chemistry C, Год журнала: 2024, Номер unknown

Опубликована: Дек. 25, 2024

Sulfonic acid groups exhibit a strong ability to deprotonate in aqueous environments and facilitate proton conduction through the membrane. However, membrane's hydration level is critical factor influencing both strength efficiency of mechanisms. In this study, we employ ab initio molecular dynamics (AIMD) simulations augmented with metadynamics explore thermodynamic drivers governing strength, highlighting complex interactions between solvent molecules functional within confinement at different interlinker spacings. Our computational studies reveal that minimum four water are required these ethyl sulfonic (ESA) units, while internal energy drives transition. For ESA tendency accept donate acidic protons correlated dynamic behavior hydronium ions. The distribution ion vicinity units also found be more sensitive spacing than content itself. Therefore, interplay crucial further optimize application systems, thereby facilitating development next-generation technologies fields such as heterogeneous catalysis, exchange membranes, conversion systems.

Язык: Английский

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Exploring the Potential of Anti-Bacterial and Conductive Zno-Al2o3/Spes Proton Exchange Membrane Applied in Mfc for Sustainable Energy Generation and Sugar Beet Industry Effluent Treatment

Опубликована: Янв. 1, 2023

This research introduces a novel approach wherein sulfonated polyethersulfone (SPES) membrane is modified using bio-synthesized ZnO-Al2O3 nanoparticles (ZANPs). serves as proton exchange (PEM) within dual-chamber microbial fuel cell (MFC) for energy production and sugar beet industry effluent treatment. We fabricated ZANPs/SPES membranes through phase inversion process, varying the ZANPs loadings from 0.5 to 4.0 wt.%. According findings, exhibited significant benefits PEMs, such improved conductivity, ion capacity, anti-bacterial capability. The MFC utilizing PEM with wt.% of (ZANPs4.0/SPES) demonstrated peak power output 142.75 mW/m2 maximum current 413 mA/m2. values observed were notably elevated compared that used commercial Nafion 117. ZANPs4.0/SPES also had capacity 2.75 meq/g 3.91 mS/cm conductivity among PEMs Nafion117, which only 1.07 0.89 meq/g. Modified COD removal by up 98.22% higher coulombic efficiency 39.26%. was over 97% against two types bacteria.

Язык: Английский

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Integrating Biochar and Microbial Community for Detoxification of Wastewater Industry Containing Analgesics

Опубликована: Янв. 1, 2023

Although anaerobic digestion process is a simple, cheap, and viable technology for treating pharmaceutical wastewater, its performance could be inhibited due to the toxicity effect of analgesics. Hence, this study investigates biochar utilization on analgesic’s degradation, microbial shifting communities, biogas profitability from treatment wastewater. Biochar was synthesized pomegranate peels waste characterized in terms surface morphology, elemental composition, crystallization, functional groups. Five baffled reactors (ABR1, ABR2, ABR3, ABR4 ABR5) were supplemented by dosages 0, 50, 75,100 150 mg/gVS respectively. Each module inoculated sludge rich mixed culture (44.8±3.9 gVS/L), operated at C: N: P ratio 300:7:1 retention time 2.0 d. The removal efficiencies chemical oxygen demand (COD), ketoprofen, paracetamol, salicylate increased values 10.1%, 220.6%, 20.4%, 53.6% respectively with 100 mg /gVS compared control reactor (ABR1). Moreover, bio-CH4 yield significantly 175.14±13.67 mL/g COD removed ABR1 225.58±16.68 supplied biochar/gVS. biochar’s groups (C═O, C-OH, C-COOH) formed complexations salicylate, suggesting that adsorption pathway mechanism. relative abundances Chlorobi, Bacteroidetes, Armatimonadetes, Synergistetes, Pseudomonas, Flavobacteriia, Euryarchaeota, Methanobacteria, Methanomicrobia, resisting analgesics facilitating organics bioconversion into CH4, 175.15%, 112.45%, 32.43%, 29.21%, 400%, 200%, 122.17%, 70.3%, 230.5% after application ABR1. associated better productivity, pollutants reduction, carbon credits, equivalent scenario payback period 7.1 yr.

Язык: Английский

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