Download Advanced nanomaterials and nanotechnology : proceedings of by P K Giri; D K Goswami; A Perumal PDF

By P K Giri; D K Goswami; A Perumal

Nanoscale technological know-how and expertise have occupied centre degree globally in glossy medical learn and discourses within the early 21st century. The permitting nature of the know-how makes it vital in smooth electronics, computing, fabrics, healthcare, power and the surroundings. This quantity includes chosen articles provided (as Invited/Oral/Poster displays) on the 2d foreign convention on Read more...

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Read Online or Download Advanced nanomaterials and nanotechnology : proceedings of the 2nd International Conference on Advanced Nanomaterials and Nanotechnology, Dec 8-10, 2011, Guwahati, India PDF

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Extra info for Advanced nanomaterials and nanotechnology : proceedings of the 2nd International Conference on Advanced Nanomaterials and Nanotechnology, Dec 8-10, 2011, Guwahati, India

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After completion of mixing, 5 mL of supernatant was withdrawn and centrifuged at an acceleration of 15000 × g. 51 Removal of Hydrophobic Pollutants from Soil (4) A 1 mL sample was transferred into a scintillation vial containing 10 mL of Ecolume cocktail, and the concentrations of 14C-phenanthrene in the aqueous phase was measured using a liquid scintillation counter (LSC). 3 shows the enhanced solubility (C/C0) of phenanthrene in the presence of NACP nanoparticles and Triton X-100. Enhanced solubility increases with the increase of NACP nanoparticle dose in aqueous solution, indicating NACP nanoparticles can solubilize phenanthrene within their hydrophobic interiors just like the solubilization of HOC in surfactant micelles.

5 Surface tension for Triton X-100 and NACP nanoparticle solutions: -- NACP 700-2, -▲- NACP 1000, and -▼-Triton X-100. Reprinted from J. Hazard. , B 98, Kim, J. , Shim, S. , and Shim, J. , Effect of amphiphilic polyurethane nanoparticles on sorption-desorption of phenanthrene in aquifer material, 145–160, Copyright (2003), with permission from Elsevier. As UAN chains have much higher molecular weight of hydrophobic segments, their hydrophobic segments have much stronger hydrophobic interactions compared with those of surfactant molecules, which makes UAN chains insoluble in water even at extremely low concentration in water.

48] Kim, J. , Shim, S. , and Shim, J. -K. (2004) Enhanced desorption of phenanthrene from aquifer sand using amphiphilic polyurethane nanoparticles, J. Ind. Chem. , 10, 1043–1051. [49] Yeom, I. , Ghosh, M. , and Cox, C. D. (1996) Kinetic aspects of surfactant solubilization of soil-bound polycyclic aromatic hydrocarbons, Environ. Sci. , 30, 1589–1595. [50] Yeom, I. , Ghosh, M. , Cox, C. , and Robinson, K. G. (1995) Micellar solubilization of polycyclic aromatic hydrocarbons in coal tarcontaminated soils, Environ.

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