Theory and simulation of diffusion-reaction into nano- and mesoporous structures.: Experimental application to sequestration of mercury(II)

被引：13

作者：

Amatore, Christian ^{[1
]}

Oleinick, Alexander ^{[1
,2
]}

Klymenko, Oleksiy V.

Delacote, Cyril ^{[3
]}

Walcarius, Alain ^{[3
]}

Svir, Irina ^{[1
,2
]}

机构：

[1] Ecole Normale Super, CNRS, Dept Chim, UMR ENS UPMC PASTEUR 8640, F-75231 Paris 05, France

[2] Kharkov Natl Univ Radioelect, Math & Comp Modelling Lab, UA-61166 Kharkov, Ukraine

[3] Univ Nancy, Lab Chim Phys & Microbiol Environm, CNRS, UMR 7564, F-54600 Villers Les Nancy, France

来源：

ANALYTICAL CHEMISTRY | 2008年 / 80卷 / 09期

关键词：

D O I：

10.1021/ac702420p

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The complex problem of diffusion-reaction inside of bundles of nanopores assembled into microspherical particles is investigated theoretically based on the numerical solutions of the physicochemical equations that describe the kinetics and the thermodynamics of the phenomena taking place. These theoretical results enable the delineation of the main factors that control the system reactivity and examination of their thermodynamic and kinetic effects to afford quantitative predictions for the optimization of the particles' dimensional characteristics for a targeted application. The validity and usefulness of the theoretical approach disclosed here are established by the presentation of the complete analysis of the performance of thiol-functionalized microspheres aimed for sequestration of Hg(II) ions from solutions to be remediated. Ibis allows the comparison of the microparticles' performance at two different pH (2 and 4) and the rationalization of the observed changes in terms of the main microscopic parameters that define the system.

引用

页码：3229 / 3243

页数：15

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