Nanowires of silver–polyaniline nanocomposite synthesized via in situ polymerization and its novel functionality as an antibacterial agent

PMMA/nanoCu antibacterial plastic was prepared by in situ polymerization using MMA as monomer, BPO as initiator and surface treated nanoCu as antibacterial agent. AMEO was used for surface treatment of nanoCu. ATR-FTIR spectra showed that AMEO successfully reacted on the surface of nanoCu. SEM spectra showed that nanoCu dispersed evenly in the PMMA/nanoCu composite. Antibacterial test results showed that the composite had a strong antibacterial effect on Escherichia coli, and the antibacterial rate reached more than 99%. Therefore, the PMMA/nanoCu composite can be used in various fields of antibacterial plastic products.

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Characterization and Photocatalytic Activity of TiO2(rod)-SiO2-Polyaniline Nanocomposite

Indonesian Journal of Chemistry ◽

10.22146/ijc.22550 ◽

2018 ◽

Vol 18 (2) ◽

pp. 321 ◽

Cited By ~ 2

Author(s):

Sri Wahyuni ◽

Eko Sri Kunarti ◽

Respati Tri Swasono ◽

Indriana Kartini

Keyword(s):

In Situ Polymerization ◽

Core Shell ◽

Mixed Structure ◽

Xrd Pattern ◽

Pani Composite ◽

Visible Irradiation ◽

Core Shell Structure ◽

Small Improvement ◽

Polyaniline Nanocomposite

A study of TiO2(rod)-SiO2 composites coated with polyaniline (PANI) has been performed. PANI was synthesized through in-situ polymerization of aniline at various concentration (0.0137, 0.0274, and 0.0411 M) on the composite under acidic condition. PANI was confirmed by the appearance of C=N, C=C vibrations and the redshift of the band-gap from 3.14 eV for the TiO2(rod)-SiO2 into 3.0 eV for the TSP01 composite. It is also shown that the polymerization does not change the crystal structure of TiO2(rod)-SiO2 as confirmed by the XRD pattern. The TEM image shows a mixed structure of SiO2 coated by TiO2(rod)-PANI layers and the oxides coated by PANI layers. Therefore, the surface area of the resulted TiO2(rod) and the composites did not change significantly. The T TiO2(rod)-SiO2-PANI composite give small improvement under visible irradiation from 20.25 to 25.59% (around 5% from the bulk of TiO2(rod)) and from 25.03 to 25.59% (around 2% from TiO2(rod)-SiO2 composite). The mixed structure of the composites, as well as the formation of excessive layers of PANI, are possibly the case for the low photoactivity. Further improvement to obtain a core-shell structure with a thin layer of PANI is still sought.

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Microwave Involved Synthesis of Graphene/Polyaniline Nanocomposite with Superior Electrochemical Performance

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.46.212 ◽

2017 ◽

Vol 46 ◽

pp. 212-224 ◽

Cited By ~ 2

Author(s):

Han Xun Qiu ◽

Xue Bing Han ◽

Jing Li ◽

Fei Long Qiu ◽

Jun He Yang

Keyword(s):

Electrochemical Impedance ◽

In Situ Polymerization ◽

Photoelectron Spectra ◽

Electrochemical Performances ◽

X Ray Diffraction ◽

Galvanostatic Charge ◽

X Ray ◽

Energy Storage Applications ◽

Polyaniline Nanocomposite

A microwave irradiation involved process was applied to fabrication of graphene/polyaniline nanocomposite via in-situ polymerization of aniline monomers on graphene sheets. Structure and morphology of composites were characterized through scanning electron microscopy, Raman spectra, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectra. Electrochemical performances for energy storage applications were examined by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge/discharge measurements. Owing to the homogeneous coating of polyanilline on the large surface of graphene, graphene/polyaniline composite-based electrode exhibits remarkably enhanced capacitive behavior with a specific capacitance of 429 F/g at 0.2 A g-1, a good cyclic stability and an excellent conducting behavior, which are much superior to those of individual components of composites. The improved electrochemical behavior of the composite resulting from the irradiation of microwave suggests the promising potentials for supercapacitors.

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