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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/975| Understanding the adsorptive and photoactivity properties of Ag-graphene oxide nanocomposites | |
| REINALDO DAVID MARTINEZ OROZCO HARET CODRATIAN ROSU VICENTE RODRIGUEZ GONZALEZ | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.1016/j.jhazmat.2013.07.056 | |
| Graphene-based nanocomposites RhB binding-site saturation Silver nanoparticles Graphene adsorption capacity Graphene oxide sp3 defects Strong adsorption | |
| "Nanocomposites of graphene oxide (GO) and silver nanoparticles (AgNPs) were synthetized using a practical photochemical silver functionalization. Their photocatalytic activities were evaluated with two dyes, Rhodamine B and Indigo Carmine, under visible-light irradiation. The prepared nanocomposites were characterized by HRTEM, FESEM, XRD, Raman, FTIR and UV–vis absorption spectroscopy. These nanocomposites present new defect domains of sp3 type in combination with several graphitic functional groups that act as nucleation sites for anchoring AgNPs, while the sp2–sp3 edge defects domains of GO generate the photoactivity. Furthermore, their photocatalytic performances are governed by their large adsorption capacity, and strong interaction with dye chromophores. A comprehensive photocatalytic way underlying the importance of adsorption is suggested to explain the low visible-light responsive photoactivity of the AgNPs-GO nanocomposites and the possible binding-site saturation. Then, the usage of H2SO4 allows the production of ionic species and helps to confirm the strong adsorption of both dyes. The ability to synthesize AgNPs-GO nanocomposites with extensive adsorptive capacity is certainly of interest for the efficient removal of hazardous materials." | |
| Elsevier Science BV | |
| 2013 | |
| Artículo | |
| Inglés | |
| Público en general | |
| R.D. Martínez-Orozco, H.C. Rosu, Soo-Wohn Lee, V. Rodríguez-González, Understanding the adsorptive and photoactivity properties of Ag-graphene oxide nanocomposites, In Journal of Hazardous Materials, Volume 263, Part 1, 2013, Pages 52-60 | |
| INGENIERÍA Y TECNOLOGÍA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |
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| JHazMat263(2013)52.pdf | 753.1 kB | Adobe PDF | Visualizar/Abrir |