AI Article Synopsis
- A new lead(II) ion-imprinted polymer (Pb(II)-IIP) was developed for selectively adsorbing Pb(II) from water, using mesoporous silica (SBA-15) and surface molecular imprinting technology.
- The polymer was characterized through various techniques, indicating that it has a well-structured mesoporous design.
- It exhibited fast adsorption kinetics and high selectivity for Pb(II), with the adsorption process fitting a pseudo-second-order model and a Langmuir isotherm, suggesting the process is spontaneous and exothermic.
Article Abstract
In this study, a new Pb(II) ion-imprinted polymer (Pb(II)-IIP), which can be used for selective adsorption of Pb(II) from aqueous solutions, was successfully prepared based on the supported material of ordered mesoporous silica SBA-15 with the help of surface molecular imprinting technology. The prepared polymer was characterized by Fourier transmission infrared spectrometry, X-ray diffraction, transmission electron microscope and nitrogen adsorption-desorption isotherm. The results showed that the synthesized polymer possessed high ordered mesoporous structure. The adsorption behavior of the adsorbents for Pb(II) was investigated using batch experiments. The Pb(II)-IIP showed fast kinetics, high selectivity and satisfied adsorption capacity for adsorption of Pb(II). Under the optimum experimental condition, Pb(II) adsorption process over Pb(II)-IIP follows pseudo-second-order reaction kinetics and follows the Langmuir adsorption isotherm. In addition, the thermodynamic parameters calculated from the adsorption data suggested that the adsorption of Pb(II) onto Pb(II)-IIP was a spontaneous and exothermic nature of the process.
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| http://dx.doi.org/10.1016/j.jhazmat.2010.10.105 | DOI Listing |
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