Electrospun fiber membranes of Fe2O3/ZnO with high photocatalytic activity for wastewater treatment application under visible light irradiation DOI Creative Commons
Qing Lin, Rui Zhang, Xiujuan Zhang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract Fe2O3/ZnO fiber membranes with a high specific surface area and broadened UV-Vis absorption were successfully fabricated by electrospinning followed calcination. The diameters of fibers are approximately 150 nm, the areas around 29 m2/g. XRD, SEM, XPS results confirm formation heterojunction between hexagonal ZnO hematite α-Fe2O3. Compared pure membranes, absorptions extended, transient photocurrent intensities significantly increased from 0.65 mA/cm2 to 0.86 mA/cm2. free radical capture experiments further reveal generation abundant •OH radicals, which play crucial role in enhancing photocatalytic performance these membranes. Optimization studies have determined that most effective molar ratio Fe Zn is 8 mol%, resulting 45% increase degradation efficiency for MB. In addition this enhanced efficacy, also demonstrate exceptional cycling stability, highlighting their significant potential application treatment dye wastewater.

Language: Английский

Reverse Gradient Distributions of Drug and Polymer Molecules within Electrospun Core–Shell Nanofibers for Sustained Release DOI Open Access
Y. Chen,

Wenjian Gong,

Zhiyuan Zhang

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(17), P. 9524 - 9524

Published: Sept. 1, 2024

Core–shell nanostructures are powerful platforms for the development of novel nanoscale drug delivery systems with sustained release profiles. Coaxial electrospinning is facile and convenient creating medicated core–shell elaborate designs which sustained-release behaviors molecules can be intentionally adjusted. With resveratrol (RES) as a model poorly water-soluble cellulose acetate (CA) PVP polymeric carriers, brand-new electrospun nanostructure was fabricated in this study. The guest RES host CA were designed to have reverse gradient distribution within nanostructures. Scanning electron microscope transmission evaluations verified that these nanofibers had linear morphologies, without beads or spindles, an obvious double-chamber structure. X-ray diffraction patterns Fourier transform infrared spectroscopic results indicated involved components highly compatible presented amorphous molecular state. In vitro dissolution tests new structures able prevent initial burst release, extend continuous-release time period, reduce negative tailing-off effect, thus ensuring better profile than traditional blended drug-loaded nanofibers. mechanism underlying influence structure RES/CA on proposed. Based proof-of-concept demonstration, series advanced functional nanomaterials similarly developed based distributions multi-chamber

Language: Английский

Citations

24
Synergistic Effects of Radical Distributions of Soluble and Insoluble Polymers within Electrospun Nanofibers for an Extending Release of Ferulic Acid DOI Open Access

Ran Dong,

Wenjian Gong,

Qiuyun Guo

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(18), P. 2614 - 2614

Published: Sept. 15, 2024

Polymeric composites for manipulating the sustained release of an encapsulated active ingredient are highly sought after many practical applications; particularly, water-insoluble polymers and core–shell structures frequently explored to manipulate behaviors drug molecules over extended time period. In this study, electrospun nanostructures were utilized develop a brand-new strategy tailor spatial distributions both insoluble polymer (ethylcellulose, EC) soluble (polyvinylpyrrolidone, PVP) within nanofibers, thereby extended-release loaded ingredient, ferulic acid (FA). Scanning electron microscopy transmission assessments revealed that all prepared nanofibers had linear morphology without beads or spindles, those from coaxial processes obvious structure. X-ray diffraction attenuated total reflectance Fourier transform infrared spectroscopic tests confirmed FA fine compatibility with EC PVP, presented in amorphous state. vitro dissolution indicated radical (decreasing shell core) PVP (increasing able play their important role elaborately. On one hand, F3 advantages homogeneous composite F1 higher content solutions inhibit initial burst provide longer period release. other F2 core negative tailing-off The key element was water permeation rates, controlled by ratios polymers. new based on structure paves way developing wide variety polymeric heterogeneous realizing desired functional performances.

Language: Английский

Citations

20
Emerging roles of electrospun nanofibers for real-time motion monitoring DOI

Puhua Hao,

Shuai Qiu, Shichang Liu

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2025, Volume and Issue: 8(1)

Published: Jan. 9, 2025

Language: Английский

Citations

1
Design and performance investigation of novel efficient photocatalysts PVP-modified PVDF/BiOBr photocatalytic membranes for wastewater treatment DOI
Fei Bi,

Zhemei Zheng,

Rongrong Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160781 - 160781

Published: Feb. 1, 2025

Language: Английский

Citations

1
Coaxial electrospinning: Design, characterization, mechanistic insights and their emerging applications in solar cells DOI
Yakubu Adekunle Alli, Abayomi Bamisaye, Abdulmujeeb T. Onawole

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 131, P. 110203 - 110203

Published: Sept. 6, 2024

Language: Английский

Citations

7
Electrospun Fiber Membranes of Fe2O3/ZnO with High Photocatalytic Activity for Wastewater Treatment Application under Visible Light Irradiation DOI
Qing Lin, Rui Zhang, Xiujuan Zhang

et al.

Catalysis Letters, Journal Year: 2025, Volume and Issue: 155(2)

Published: Jan. 3, 2025

Language: Английский

Citations

0
Ionic Conductivity in the Novel Complex Oxide Ba0.95la1.05ino4.025 with Ruddlesden-Popper Structure DOI
Ekaterina Abakumova, Т. В. Кузнецова,

V. Zaviralova

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Adsorption of Cu2+ From Water Onto PVDF Electrospinning Membrane Functionalized γ‐Al2O3 Nanoparticles DOI Open Access
Fengli He, Haihong Zhang, Long Zhang

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

ABSTRACT In recent years, heavy metal ion pollution issues occur frequently, and the prevention control of have become an urgent environmental problem for human beings. To reduce harm caused by pollution, γ‐Al 2 O 3 /polyvinylidene fluoride (γ‐Al /PVDF) composite membranes were prepared electrospinning technology. The microstructures, phase structures, mechanical properties, adsorption properties membrane characterized SEM, XRD, universal testing machine, spectrophotometer. results showed that /PVDF fibers randomly deposited, diameter varied from 1.65 to 2.35 μm. three‐dimensional network structures formed porosity was as high 85.28%. When content 4%, tensile strength highest, which 11.33 MPa. 6%, capacity on Cu 2+ maximum. After adsorption, 152.65 mg/g. pseudo‐second‐order kinetics equation suitable describing process; it meant process might be a chemical adsorption. These findings suggest great potential in application water treatment.

Language: Английский

Citations

0
Electrospun Carbon Nanofiber Electrocatalysts for Hydrogen Evolution Reaction DOI

Minggui Li,

Yun Liang, Junyu Shi

et al.

The Chemical Record, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Electrospinning, a versatile and cost‐effective method for fabricating nanofibers, exhibits significant potential in electrocatalysis. Electrospun carbon nanofibers feature unique one‐dimensional characteristics, including high specific surface area, tunable composition, morphology, electronic structure, positioning them as promising candidates hydrogen evolution reaction (HER) electrocatalysts. This review provides comprehensive summary of the history, fundamental principles, key parameters electrospinning, systematically outlining recent advances HER electrocatalysts involving noble metals, transition other material systems. Additionally, explores how optimization strategies, such interface engineering elemental doping, can enhance structural properties catalysts. Finally, highlights industrial electrospun nanofiber electrocatalysts, emphasizing importance sustainable synthesis approaches scalable production techniques.

Language: Английский

Citations

0
Preparation of High Porosity Polyacrylonitrile Composite Membrane with Inter-Fiber Junction Structure DOI
Fengyi Cao, Shuyue Wang, Juan Hu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0