Highly oxidation tendency of zerovalent iron nanoparticles limits its various practical applications. In this work, stabilization of zerovalent iron nanoparticles (nZVI) in 3-Mercapto-1,2-propanediol (α-thioglycerol, α -TG) modified polyester nonwoven (PN) for improved catalytic and antibacterial application has been studied for the first time. Changes in wettability as well as structural, morphological, thermal and catalytic properties of the resulting PN/α -TG/nZVI material were investigated by scanning electron microscopy, energy dispersive X-Ray, zeta potential measurements, thermogravimetric analysis, differential scanning calorimetry, fourier transform infrared and UV–visible spectroscopies. Prior to functionalization, hydrophilic functional groups have been introduced in PN surface by air atmospheric plasma treatment. Iron nanoparticles were immobilized by α-thioglycerol on the polyester fibers with a multi-meter particle size. α -TG stabilized nZVI by reducing the tendency of easy oxidation. nZVI insertion resulted in high thermal stability of PN. As an application, PN/α-TG/nZVI exhibited an excellent catalytic activity in the reduction of 4-nitrophenol with appreciable recyclability. The results further demonstrate that PN/α-TG/nZVI can be employed not only for toxic compounds removal but also to inhibit the growth of bacteria at normal conditions which herein open new prospects for concrete industrial applications of nZVI based multifunctional systems.

3-Mercapto-1,2-propanediol modified robust polyester nonwoven for stabilization of zero-valent iron nanoparticles for multifunctional application

2019 Spring National Meeting

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