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1 article(s) from Serra, Antonio

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

Alessandro Buccolieri,
Antonio Serra,
Gabriele Giancane and
Daniela Manno

Beilstein J. Nanotechnol. 2018, 9, 499–507, doi:10.3762/bjnano.9.48

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Figure 1: UV–vis absorption spectra obtained from (a) the colloidal solution without ammonia and (b–i) from s...

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Figure 2: Maximum value of absorbance as a function of the NH₃ concentration.

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Figure 3: TEM images of AgNPs obtained at different NH₃ concentrations: (a) without ammonia, and (b–i) with 0...

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Figure 4: Size distribution of silver nanoparticles obtained from samples containing different NH₃ concentrat...

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Figure 5: SAED patterns of the colloidal solutions obtained (a) without ammonia and (b–e) with 1, 10, 100 and...

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Figure 6: UV–vis absorption spectra recorded as a function of the reaction time with (a) 200 ppm and (b) 5 pp...

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Figure 7: Three distinct regimes of absorbance as a function of the NH₃ concentration: (a) very low concentra...

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Published 09 Feb 2018

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