Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 133, Issue 33, Pages -Publisher
WILEY
DOI: 10.1002/app.43811
Keywords
electrospinning; fibers; nanocrystals; nanoparticles; nanowires
Categories
Funding
- Arizona State University Ira A. Fulton Schools of Engineering Dean's Fellowship program
- National Science Foundation [DGE-1311230]
- United States Environmental Protection Agency [RD835580]
- National Water Research Institute
- Science Foundation Arizona
- Nano-Enabled Water Treatment Technologies Nanosystems Engineering Research Center by the National Science Foundation [EEC-1449500]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1507750] Funding Source: National Science Foundation
- EPA [RD835580, 673469] Funding Source: Federal RePORTER
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Adding nanoparticles into polymer solutions before electrospinning creates unique hierarchical morphologies dispersed throughout small diameter nanoparticle-polymeric fibers. Effects of polymer composition, nanoparticle (NP) type, loading, and electrospinning voltage conditions were studied. As examples, indium, iron, and titanium oxide engineered nanoparticles (NPs) were dispersed into polyvinylpyrrolidone or polystyrene and electrospun. NP loadings below 5 wt % did not affect critical voltage required for Taylor cone formation, whereas higher NP loadings require higher critical voltages. Polymeric fiber thickness and macroscopic morphology is not impacted by up to 5 wt % NP loadings, and NP dispersion throughout the fibers were similar to their dispersion in initial polymer suspension. NP loadings above 5 wt % increased viscosity, which decrease subsequent fiber diameter. Experiments in water containing inorganic and organic pollutants in water demonstrate that the polymer is largely nonporous. This work enables design of multifunctional nanomaterial-polymer composite fibers for wide-ranging applications such as water and air treatment. (C) 2016 Wiley Periodicals, Inc.
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