Composite photocatalysts based on metal nanoparticles and functional polymers attract much attention compared to inorganic photocatalysts. In this study, a reusable magnetite/anion exchanger (FeO/PPE-2) functional material is synthesized by a hydrothermal method, and its photocatalytic activity is evaluated for the photocatalytic degradation of Rhodamine B (RhB). The results from materials characterization confirm a well-defined morphology of magnetic FeO/PPE-2 functional material and the formation of FeO nanocrystals with different shapes and sizes on the surface of anion exchange material (PPE-2). The optimized FeO/PPE-2 in 180C (FM180) photocatalyst exhibited a band gap energy of 1.90 eV, demonstrating significant photocatalytic potential. Using RhB as a model pollutant, magnetic FeO/PPE-2 (FM180) functional material achieved 98.2% degradation efficiency after 160 min of visible light irradiation (rate constant k=0.03496 min). Efficiency of the photocatalytic materials, of photocatalytic degradation of RhB is 28.4% for pure anion exchanger (PPE-2), 56.5%, 64.7% and 98.2% for magnetic functional FeO/PPE-2 materials, synthesized under conditions of 140 °C (FM140), 160 °C (FM160) and 180 °C (FM180), respectively. Compared to individual PPE-2 anion exchange material and FeO, the magnetic functional FM180 material exhibits a remarkable photocatalytic reaction rate as high as four times that of PPE-2, with superior reusability over 10 cycles. The computational study and Mott-Schottky plots verify the formation of the internal electric field. Possible reaction pathways for the photocatalytic degradation of RhB are presented. In addition, the results demonstrate that the FeO/PPE-2 functional material very efficiently removed Rhodamine B from textile wastewater. This work offers a simple route for the preparation of magnetic and reusable FeO/PPE-2 magnetic functional material that can be used in the water purification process.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envres.2025.120911 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Dual-Pathway Responsive Mechanophore for Intelligent Luminescent Polymer Materials.
J Am Chem Soc
January 2025
Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China.
Mechanoluminescent units, when integrated into polymer matrices, undergo structural transformations in response to mechanical force, resulting in changes in fluorescence. This phenomenon holds considerable promise for the development of stress-sensing materials. Despite the high demand for robust, tunable mechanoluminescent mechanophores for force assessment and smart force-responsive materials, strategies for their design and synthesis remain underdeveloped.
View Article and Find Full Text PDFEvaluating the Immunogenicity Risk of Protein Therapeutics by Augmenting T Cell Epitope Prediction with Clinical Factors.
AAPS J
January 2025
Department of BioAnalytical Sciences, Genentech Inc, South San Francisco, California, USA.
Protein-based therapeutics may elicit undesired immune responses in a subset of patients, leading to the production of anti-drug antibodies (ADA). In some cases, ADAs have been reported to affect the pharmacokinetics, efficacy and/or safety of the drug. Accurate prediction of the ADA response can help drug developers identify the immunogenicity risk of the drug candidates, thereby allowing them to make the necessary modifications to mitigate the immunogenicity.
View Article and Find Full Text PDFIncreased overwintering temperature reduces reproductive success of the solitary bee species Osmia bicornis.
Sci Rep
January 2025
Agroecology and Environment, Agroscope, Reckenholzstrasse 191, Zürich, 8046, Switzerland.
Solitary wild bees play a key role as pollinators of wild plants and crops, but they are increasingly at risk from anthropogenic global change, such as climate warming. However, how warmer temperature during overwintering affects reproductive success of those bees remains largely unknown. In a semi-field experiment we assessed individual life-long reproductive success of 144 females of the solitary bee species Osmia bicornis that had been wintered at three different temperatures.
View Article and Find Full Text PDFStructural, elastic, electronic, magnetic and thermal properties of XFeO (X = mg, ca and Sr) materials.
Sci Rep
January 2025
Applied Optics Laboratory, Institute of Optics and Precision Mechanics, University Setif 1, Setif, 19000, Algeria.
This prediction evaluates the different physical characteristics of magnetic materials XFeO (X = Mg, Ca and Sr) by using density functional theory (DFT). The generalized gradient approximation (GGA) approach is chosen to define the exchange and correlation potential. The structural study of the compounds XFeO (X = Mg, Ca and Sr) shows that the ferromagnetic phase is the more stable ground state, where all the parameters of the network are given at equilibrium.
View Article and Find Full Text PDFAdvanced Distance-Resolved Evaluation of the Perienhancing Tumor Areas with FLAIR Hyperintensity Indicates Different ADC Profiles by Promoter Methylation Status in Glioblastoma.
AJNR Am J Neuroradiol
January 2025
From the Department of Neuroradiology (G.B., N.H., F.D.v.D., A.B., Z.K.), University Hospital Zürich, Zürich, Switzerland.
Background And Purpose: Whether differences in the O-methylguanine-DNA methyltransferase () promoter methylation status of glioblastoma (GBM) are reflected in MRI markers remains largely unknown. In this work, we analyze the ADC in the perienhancing infiltration zone of GBM according to the corresponding status by using a novel distance-resolved 3D evaluation.
Materials And Methods: One hundred one patients with wild-type GBM were retrospectively analyzed.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!