Iron-loaded amine/thiol functionalized polyester fibers with high catalytic activities: a comparative study
Mohammad Neaz Morshed1, Nabil Bouazizi, Nemeshwaree Behary
1Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT), GEMTEX Laboratory, 2 allée Louise et Victor Champier BP 30329, 59056 Roubaix, France. bouazizi.nabil@hotmail.fr usha.massika@ensait.fr.
Dalton Transactions (Cambridge, England : 2003)
|May 22, 2019
Summary
Iron nanoparticles (Fe-NPs) dispersed on polyester fabrics (PET) show excellent catalytic activity for degrading pollutants like 4-nitrophenol (4-NP) and methylene blue (MB). The PET-SH-Fe material achieved 99.6% 4-NP degradation in just 12 minutes.
Area of Science:
- Materials Science
- Nanotechnology
- Environmental Chemistry
Background:
- Developing efficient and stable fiber-based catalysts is crucial for environmental remediation.
- Iron nanoparticles (Fe-NPs) offer promising catalytic properties but require effective immobilization strategies.
Purpose of the Study:
- To synthesize and characterize Fe-NPs immobilized on polyester fabrics (PET) with different organic modifiers.
- To evaluate the catalytic performance of these modified fabrics in degrading organic pollutants.
- To correlate material properties with catalytic efficiency and stability.
Main Methods:
- Fe-NPs were dispersed on PET fabrics, with and without dendrimers (PAMAM), APTES, or thioglycerol (SH) functionalization.
- Catalytic degradation of 4-nitrophenol (4-NP) and methylene blue (MB) was investigated.
- Materials were characterized using diverse instrumental methods to assess Fe content, structure, and stability.
Main Results:
- Successful immobilization of Fe-NPs on PET fabrics, yielding PET-Fe, PET-PAMAM-Fe, PET-APTES-Fe, and PET-SH-Fe.
- PET-SH-Fe exhibited the highest catalytic activity, achieving 99.6% degradation of 4-NP in 12 minutes.
- Catalytic activity was linked to Fe-NP interaction and reactant adsorption, following pseudo-1st order kinetics.
Conclusions:
- The choice of organic modifier significantly impacts the catalytic performance and stability of Fe-NP/PET fiber-based catalysts.
- Thioglycerol functionalization enhances Fe-NP dispersion and catalytic efficiency for pollutant degradation.
- These findings support the development of advanced fiber-based catalysts for environmental applications and green chemistry.
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