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- W2904684494 abstract "The [email protected]3O4 (NPMF), a new kind of nano material, was prepared by the hydrothermal method. In this work, its characteristic and the composite construction were analyzed through such series of means as SEM, TEM, IR, TGA, XRD, VSM, N2 adsorption desorption isotherm curve and so on, the adsorption capacity of NPMF for the low concentration uranium-bearing solutions was investigated through NPMF adsorption for U(VI) experiment and cycle adsorption experiment, the effects of initial pH, adsorption temperature, contact time and other factors on its biosorption of U(VI) were studied. The adsorption isotherm fitted well to Langmuir model and adsorption process followed false secondary dynamics model, so we can draw the conclusion that the adsorption process was mainly composed of single layer chemical adsorption, which is supported by multilayer adsorption and hole diffusion. The van't Hoff equation fitted well to adsorption thermodynamic parameter, indicating that the adsorption is an endothermic process, the adsorption reaction is feasible and spontaneous. In addition, some experiment datas showed that the NPMF has good adsorption properties on low concentration U(Ⅵ), and it has the advantages of quick response realization, high efficiency, being easy to separate from liquid by external magnetic field and good renewable performance and others." @default.
- W2904684494 created "2018-12-22" @default.
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- W2904684494 date "2019-02-01" @default.
- W2904684494 modified "2023-09-27" @default.
- W2904684494 title "Adsorption properties of pyrene-functionalized nano-Fe3O4 mesoporous materials for uranium" @default.
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- W2904684494 doi "https://doi.org/10.1016/j.jssc.2018.12.030" @default.
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