Fabrication of silver nanoparticles/polyaniline composite thin films using Layer-by-Layer self-assembly technique for ammonia sensing

Detsri, Ekarat; Popanyasak, Jittaporn

doi:10.1016/j.colsurfa.2014.11.019

Cited by 38 publications

(11 citation statements)

References 28 publications

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“…15 Further, sulfonation of PANI increases the conducting power, leads to higher electrochemical performance. 16,17 SPANI is the first polymer reported as self-doped water-soluble conducting polymer with dopant and it induced the processability. 18 SPANI shows better thermal stability when compared to its parent PANI doped with HCl.…”

Section: Introductionmentioning

confidence: 99%

Novel polysulfone/sulfonated polyaniline/niobium pentoxide polymer blend nanocomposite membranes for fuel cell applications

Mahimai

Kulasekaran

Deivanayagam

2021

J of Applied Polymer Sci

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New series of polymer nanocomposite membranes were prepared from polysulfone (PSU), sulfonated polyaniline (SPANI) and niobium pentoxide (Nb 2 O 5 ) by solution casting technique. In order to assess the suitability of the polymer electrolytes in fuel cell applications, the membranes were characterized with respect to their physicochemical properties. Scanning electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy data confirmed the successful incorporation of nanofillers into the polymer matrix. The membrane loaded with 10 wt% of niobium pentoxide into PSU/SPANI exhibited a proton conductivity of 0.0674 S cm À1 , whereas the control membrane showed 0.0110 S cm À1 . The incorporation of niobium pentoxide into pristine polymer not only improved the ionic conductivity but also enhanced the thermal and oxidative stabilities. The substantial results achieved with the organicinorganic polymer composites derived from PSU-SPANI and Nb 2 O 5 have been established and can be viable materials for electrolyte in fuel cell applications.

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Section: Introductionmentioning

confidence: 99%

Novel polysulfone/sulfonated polyaniline/niobium pentoxide polymer blend nanocomposite membranes for fuel cell applications

Mahimai

Kulasekaran

Deivanayagam

2021

J of Applied Polymer Sci

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“…However the functional dependence of absorbance as a function of the concentration is not discussed. Others report on much higher concentrations of ammonia, such as for example the work of Detsri and Popanyasak [ 38 ], which discussed the effect of HN 3 in a concentration varying between 10 and 800 mM, corresponding to the range from 1.8·10 2 to 1.4·10 4 ppm.…”

Section: Resultsmentioning

confidence: 99%

Colloidal solution of silver nanoparticles for label-free colorimetric sensing of ammonia in aqueous solutions

Buccolieri

Serra

Giancane

et al. 2018

Beilstein J. Nanotechnol.

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Silver nanoparticles were synthesized in the presence of saccharides and ammonia (NH3) in the concentration range from 10−2 to 103 ppm to develop an optical sensor for NH3 in aqueous solutions. Ammonia affects the features of the nanoparticles obtained in a concentration-dependent manner as determined by UV–vis absorption analysis and TEM observations. Structural and morphological analysis provides the basis for the production of a colorimetric label-free sensor for ammonia. Overall, surface plasmon resonance increases when ammonia concentration rises, although the functional trend is not the same over the entire investigated ammonia concentration range. Three different ranges have been identified: very low ammonia concentrations from 0.01 to 0.2 ppm, high ammonia concentrations from 20 to 350 ppm and, most importantly, the intermediate or physiological range of ammonia from 0.5 to 10 ppm.

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“…ere was a distinct change of color from purple to yellow following the addition of a solution of ammonia at a limit of detection of 5 ppm. Detsri and Popanyasak [32] used a technique of layer-by-layer deposition to present the composite Ag NPS thin films as well as polyaniline. ere was a change of color from orange-red to yellow when the films were exposed to ammonia solution.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Detection of Ammonia Using Synthesized Silver Nanoparticles from Durian Fruit Shell

Alzahrani

2020

Journal of Chemistry

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There has been increased interest in the production of nanoparticles (NP) through green chemistry. This article used durian fruit shell aqueous solution that acts as a reductive preparation of silver NPs. The silver nanoparticles have a size of approximately 25 nm. The NP size uniformity was determined by the SEM and TEM analysis. X-ray diffraction technique was used to characterize crystalline silver nanoparticles face-centered cubic structure. XPS spectrum showed distinct silver peaks on the nanoparticles’ surface. An optical method that was based on surface plasmon resonance (SPR) was used to perform the green Ag NPs aqueous ammonia sensing study. Optical measurement facilitated the ammonia sensing study of Ag NPs that had been prepared. The study also investigated the performance of the optical sensor, thus adding validity to the study. Also, the research sought to determine how the concentration of ammonia in ammonia sensing affects the Ag NPs that had been obtained. The study observed a linear relationship with R2 as the correlation factor which was equal to 0.9831. This was observed from the ammonia concentration plot versus absorption ratio that suggested that there was a linear increase in absorption ratio with increase in ammonia concentration. The study significance is that the room temperature optical ammonia sensor can be used in future for medical diagnosis in the detection of low levels of ammonia in biological fluid like sweat, cerebrospinal fluid, saliva, plasma, or biological samples. This enhances the application of the technique in human biomedical applications.

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Fabrication of silver nanoparticles/polyaniline composite thin films using Layer-by-Layer self-assembly technique for ammonia sensing

Cited by 38 publications

References 28 publications

Novel polysulfone/sulfonated polyaniline/niobium pentoxide polymer blend nanocomposite membranes for fuel cell applications

Novel polysulfone/sulfonated polyaniline/niobium pentoxide polymer blend nanocomposite membranes for fuel cell applications

Colloidal solution of silver nanoparticles for label-free colorimetric sensing of ammonia in aqueous solutions

Colorimetric Detection of Ammonia Using Synthesized Silver Nanoparticles from Durian Fruit Shell

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