alexa Abstract | Synthesis of MnO2 nanowires and its adsorption property to lead ion in water

Journal of Chemical and Pharmaceutical Research
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Abstract

MnO 2 nanowire was prepared by the hydrothermal synthesis route with MnSO 4 used as manganese source . I n addition, i t w as investigat ed that the effects o f the reaction temperature and reactant ratio on the morphology, crystal structure and adsorption performance of MnO 2 nanowires. And, t he as - prepared MnO 2 nanowire wa s characterized by a series of techniques, including scanning electron microscopy (SEM), X - ray powder diffraction (XRD). The results indicated that the best hydrothermal reaction temperature is 200 °C , the optimum ratio of potassium sulfate, potassium persulfate and manganese sulfate is 1:2:1. The as - prepare d MnO 2 is nano - linear which stretches evenly, and the adsorption effect is good. The adsorption properties of the MnO 2 nanowire were studied by changing the amount of adsorbent, the pH of the solution, Pb 2+ initial concentration. The equilibrium of adsorpt ion was achieved within 100 min. Under the conditions of 65 °C , the concentration of Pb 2+ is 23.66 mg/L, the adsorption percentage of adsorption Pb 2+ was 93.17% , and the adsorption capacity was 22.05 mg/g

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Author(s): Quan Huo and Haiyan Xiao

Keywords

manganese dioxide,nanowires, preparation,adsorption,lead ions, nanowires

 
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