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- W2044283463 abstract "CdS nanoparticles were prepared on the surface of copolymer of methyl methacrylate and methacrylic acid [Poly(MMA-co-MAA)] microspheres by a photochemical route, using Na <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</inf> S <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</inf> O <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</inf> and CdSO <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>4</inf> as source of sulfur and cadmium, respectively. Because of the coordinate effect of -COOH groups on the surface of Poly(MMA-co-MAA) microspheres, the Cd <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2+</sup> would be adsorbed and then react with sulfur to produce CdS nanoparticles without coalescence under the irradiation of low power UV-light. The XRD spectra demonstrated that CdS nanoparticles on surface of Poly(MMA-co-MAA) microspheres have good crystallinity and the SEM results showed that CdS nanoparticles on microspheres were spherical and uniform with around 100nm in sizes. At the same time, the photocatalytic activity of the nanoparticle/microsphere composite was studied by taking the photodegradation of methylene blue (MB) as an example. The degradation rate of MB solution could be up to 93.0% after irradiating 100 minutes by 500 W Xenon lamps and that would be up to77.5% if irradiating 180 minutes by sunlight. Comparing with the corresponding pure CdS nanoparticles, the composites have much higher photocatalytic activities." @default.
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- W2044283463 date "2010-01-01" @default.
- W2044283463 modified "2023-09-27" @default.
- W2044283463 title "Photochemical preparation of CdS nanoparticles on carboxyl- functionalized copolymer microspheres and their visible-light photocatalytic activities" @default.
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- W2044283463 doi "https://doi.org/10.1109/inec.2010.5425094" @default.
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