KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Author: search.filters.author.Sonsupap, SomchaiSubject: search.filters.subject.electrospinning

Search Results

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Fabrication of Composite Carbon Nanofibers with Silver Particles for High-quality Membranes for Antimicrobial Water Filtration
    (2026-07-15)
    Sinprachim, Tanayt
    ;
    Kachenpukdee, Natta
    ;
    Sagulsawasdipan, Kattinat
    ;
    Chalad, Chakhriya
    ;
    Sermsuk, Maytungkorn
    In this study, carbon nanofiber (CNF) composites containing silver particles at varying silver-to-carbon ratios of 0%, 10%, 20%, and 40% (denoted as CNF, CNF@Ag-10, CNF@Ag-20, and CNF@Ag-40, respectively) were fabricated using the electrospinning technique. Polyacrylonitrile (PAN) solutions, with silver nitrate (AgNO3) as a precursor at concentrations of 10%, 20%, and 40%, were dissolved in dimethylformamide (DMF) to produce the fibers. These fibers were subsequently calcined to form carbon nanocomposites embedded with silver nanoparticles. The resulting fibers, with average diameters ranging from 527 to 750 nm, incorporated silver nanoparticles measuring between 6 and 35 nm. The membranes derived from these fibers exhibited filtration rates of 7.9 to 14.3 cm³/min and effectively inhibited Escherichia coli, Salmonella, and Enterobacter, achieving microbial reductions of 59.46% to 98.23%. The antimicrobial performance of the CNF@Ag composites was found to increase with higher silver doping concentration.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Porous Electrospun Carbon Nanofibers Bearing TiO2 Hollow Nanospheres for Supercapacitor Electrodes
    (2024-03-22)
    Wongprasod, Suchunya
    ;
    Tanapongpisit, Nantawat
    ;
    Laohana, Peerawat
    ;
    Huyen Nguyen, Thi My
    ;
    Van, Hoang Quy
    A facile fabrication method was introduced to enhance the specific surface area and porosity of the carbon nanofibers. The carbon nanofibers bearing TiO<inf>2</inf> hollow nanosphere electrodes were synthesized using an electrospinning technique followed by heat treatment. Varying amounts of as-prepared TiO<inf>2</inf> hollow nanospheres were incorporated into the polymer precursor to examine their impact on the electrode enhancement. The electrochemical performance of supercapacitor electrodes composed of carbon nanofibers bearing TiO<inf>2</inf> hollow nanospheres was investigated. Results revealed that the specific capacitance of the bare carbon nanofibers electrode (170 F g<sup>-1</sup> at a current density of 0.5 A g<sup>-1</sup>) was significantly improved upon when embedded with 5 wt % TiO<inf>2</inf> hollow nanospheres of 191 F g<sup>-1</sup>. Additionally, the carbon nanofibers bearing 5 wt % TiO<inf>2</inf> hollow nanosphere electrodes demonstrated excellent cycling stability, retaining 97% of its initial specific capacitance even after 10000 cycles. Additionally, the electrochemical performance of asymmetric supercapacitors from these electrodes was also demonstrated. These findings highlight the ability of as-prepared TiO<inf>2</inf> hollow nanospheres to improve the efficiency of the carbon nanofibers electrode due to the optimum porosity to the amount of TiO<inf>2</inf> hollow nanospheres in the carbon nanofibers, opening up possibilities for the development of high-performance supercapacitors.