Adsorption, Journal Year: 2024, Volume and Issue: 30(6), P. 1419 - 1435
Published: July 9, 2024
Language: Английский
Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 141388 - 141388
Published: Jan. 1, 2025
Language: Английский
Citations
2
Deleted Journal, Journal Year: 2024, Volume and Issue: 6(3)
Published: Feb. 27, 2024
Abstract Increasing concern about environmental pollution attracts researchers to develop eco-friendly, low-cost, and sustainable approaches for green biosynthesis of nanoparticles overcome pollutants. This study focuses on the synthesis ceria NPs using Spirulina platensis extract as a stabilizing reducing agent. Characterization measurements, such optical properties, X-ray diffraction, SEM, TEM, FT-IR spectroscopy, confirmed successful crystalline stable with well-defined morphological features. The calculated bandgaps energy pure ceria, CeO 2 @Sp 2:1, 1:1 were 3.3, 3.15, 2.94 eV, respectively. as-synthesized showed an excellent degradation efficacy MB dye under UV irradiation. Furthermore, high photodegradation efficiency (R% = 86.2 88.8%) than 76.4%) at certain specific conditions (pH 11, contact time 90 min, catalyst dose 0.3 g/L initial concentration 100 mg/L). isothermal constants that is well-fitted Freundlich isotherm model (R > 0.99) better Langmuir < 0.8). kinetics models revealed rapid rate dye, which follows pseudo-second-order C e values ranging from 83.33 89.29 mg/g, R 0.99. These results indicated potential applicability promising avenue developing advanced wastewater treatment applications.
Language: Английский
Citations
12
Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 163, P. 112359 - 112359
Published: March 28, 2024
Language: Английский
Citations
12
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Aug. 6, 2024
Abstract In the current arena, new-generation functional nanomaterials are key players for smart solutions and applications including environmental decontamination of pollutants. Among plethora nanomaterials, graphene-based nanocomposites in driving seat surpassing their counterparts due to unique physicochemical characteristics superior surface chemistry. The purpose present research was synthesize characterize magnetite iron oxide/reduced graphene oxide (FeNPs/rGO) via a green approach test its application degradation methylene blue. modified Hummer's protocol adopted (GO) through chemical exfoliation using graphitic route. Leaf extract Azadirachta indica used as reducing agent reduce GO into reduced (rGO). Then, deposition leaf extract, nanocomposite comprising oxides i.e., FeNPs/rGO synthesized. During synthesis functionalized FeNPs/rGO, acted reducing, capping, stabilizing agent. final synthesized materials were characterized analyzed an array techniques such scanning electron microscopy (SEM)-energy dispersive X-ray microanalysis (EDX), Fourier transform infrared spectroscopy (FT-IR), diffraction analysis, UV–visible spectrophotometry. spectrum evaluate optical band gap. Using FT-IR spectrum, groupings identified nanocomposites. morphology elemental analysis process investigated SEM–EDX. GO, rGO, FeNPs, showed maximum absorption at 232, 265, 395, 405 nm, respectively. FTIR different groups (OH, COOH, C=O), C–O–C) modifying material surfaces. Based on Debye Sherrer's equation, mean calculated particle size all < 100 nm (GO = 60–80, rGO 90–95, FeNPs 70–90, Fe/GO 40–60, Fe/rGO 80–85 nm). Graphene-based displayed rough surfaces with clustered spherical shapes EDX confirmed presence both oxygen produced synthetic degraded approximately 74% results, it is plausible conclude that can also be potential photocatalyst degrader other dye pollutants lower
Language: Английский
Citations
12
Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 281, P. 116616 - 116616
Published: June 24, 2024
The urgent need to address the severe environmental risk posed by chromium-contaminated industrial wastewater necessitates development of eco-friendly cleanup methodologies. Utilizing Ficus benghalensis plant extracts, present study aims develop green zinc oxide nanoparticles for removal Cr metal ions from wastewater. leaves benghalensis, often known as banyan tree, were used extract a solution synthesizing ZnO NPs. These developed with goal efficiently eliminating chromium (Cr) effluents. Batch studies carried out assess efficiency these synthesized NPs in treating leather effluent, aiming optimal removal. This involved measuring nanoparticles' capacity adsorb samples comparing levels before and after treatment. Removal was estimated through batches such optimization pH, contact time, initial concentration sorbent dose batches. found be successful lowering meet permissible limit. exhibited their highest absorption capacity, reaching 94 % (46 mg/g) at pH 4, time 7 hours optimum 0.6 g/L. Hence, excellent adsorption capabilities nanoparticles, together environmentally benign manufacturing technique, provide long-term efficient Its novel nature has potential significantly improve safety cleanliness water ecosystems, protecting both i.e. human health environment.
Language: Английский
Citations
9
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Aug. 24, 2024
This study investigated the adsorption of Oxytetracycline (OTC) from pharmaceutical wastewater using a kappa carrageenan based hydrogel (KPB). The aim present was to explore potential KPB for long-term treatment. A sustainable adsorbent developed address oxytetracycline contamination. hydrogel's structural and characteristics were examined various techniques like Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), X-ray powder diffraction (XRD), kinetic models. results revealed considerable changes in vibrational modes bands hydrogel, suggesting effective functionalization Bentonite nano-clay. Kappa achieved maximum removal (98.5%) OTC at concerntration 40 mg/L, pH 8, cotact time 140 min dose 0.1 g (KPB-3). Adsorption increased up 99% with increasing initial concentrations. 95% capacity film concentration 20 mg/L within 60 min. It also that chemisorptions processes outperform physical adsorption. Pseudo-Second-Order model, which emphasized importance chemical process, is better suited represent behavior. Excellent matches found R2 = 0.99 KPB-3, 0.984 KPB-2 0.989 KPB-1 indicated strong bonding interactions. Statisctical analysis (ANOVA) performed SPSS (version 25) it had significant influence on by p-values less than 0.05. identified carrageenan-based bentonite nano-clay polyvinyl alcohol (PVA) can efficiently remove effluent, p-value 0.054, but weak positive linear associations pH, temperature, contact time. research contributed treatment environmental engineering.
Language: Английский
Citations
8
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Jan. 9, 2025
This study focuses on the synthesis of a novel Cerium-Magnesium (CeO2-MgO) binary oxide nanomaterials by simple co-precipitation process and used to remove harmful pollutants such as Cr(VI), Cu(II), F. The morphology, phase, crystallite size, thermal stability, functional groups, surface area, porosity synthesized nanomaterial were determined using XRD, SEM, FTIR, TGA/DTA, BET studies. prepared showed adsorption selectivity Cu(II) ≈ F−> Cr(VI) with high capacity 84.3 − 133.3 mg/g for F−. distribution coefficient (Kd) F− was found be in range 104 mL/g which adequate. isotherms followed Freundlich isotherm model pseudo-second-order kinetic linear nonlinear forms, indicated multilayer adsorption. Maximum removal ions 92.84%, 98.88%, 95%, respectively, initial concentration 50 mg/l 2 g/l dosages CeO2-MgO employed an adsorbent this study. results that are promising removing hazardous inorganic contaminants from water due their capability chemical stability.
Language: Английский
Citations
1
Sustainable Chemistry for the Environment, Journal Year: 2025, Volume and Issue: unknown, P. 100238 - 100238
Published: March 1, 2025
Language: Английский
Citations
1
Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 268, P. 115701 - 115701
Published: Nov. 17, 2023
Cadmium (Cd) stress in crops has been serious concern while little is known about the copper oxide nanoparticles (CuO NPs) effects on Cd accumulation by crops. This study investigated effectiveness of CuO NPs mitigating contamination wheat (Triticum aestivum L.) cultivation through a pot experiment, presenting an eco-friendly solution to critical agricultural concern. The NPs, synthesized using green methods, exhibited circular shape with crystalline structure and particle size ranging from 8 12 nm. foliar spray was applied four different concentrations i.e. control, 25, 50, 75, 100 mg/L. obtained data demonstrated that, comparison control group, had beneficial influence various growth metrics straw grain yields T. aestivum. improved physiology under stress, enhanced selected enzyme activities, reduced oxidative decreased malondialdehyde levels plants. lowered contents tissues boosted uptake essential nutrients soil. Overall, were effective minimizing grains thereby reducing health risks associated excess humans. However, more depth studies several plant species application methods are required for better utilization purposes.
Language: Английский
Citations
20
Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1318, P. 139261 - 139261
Published: July 10, 2024
Language: Английский
Citations
7