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Interactions of pesticides with clays and layered double hydroxides: a review

Published online by Cambridge University Press:  09 July 2018

J. Cornejo ,
R. Celis ,
I. Pavlovic  and
M. A. Ulibarri
J. Cornejo*
Affiliation:
Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Avenida Reina Mercedes 10, Apdo 1052, 41080 Sevilla, Spain
R. Celis
Affiliation:
Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Avenida Reina Mercedes 10, Apdo 1052, 41080 Sevilla, Spain
I. Pavlovic
Affiliation:
Departamento de Química Inorgánica e Ingeniería Química, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14004 Córdoba, Spain
M. A. Ulibarri
Affiliation:
Departamento de Química Inorgánica e Ingeniería Química, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14004 Córdoba, Spain
*
*E-mail: [email protected]
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Abstract

The increasing presence of pesticides in natural ecosystems has stimulated research to look for improved adsorbent materials which can be used to remediate and prevent soil and water contamination by these compounds. Among the different materials that have been assayed as adsorbents of pesticides are natural clay minerals, particularly 2:1 phyllosilicates and their structurally complementary synthetic analogues layered double hydroxides (LDHs). The great interest in natural clays and LDHs as adsorbent materials is mainly related to the large specific surface areas associated with their layered structure, the ease with which they are obtained or synthesized, and the possibility of modifying their surfaces to increase their affinity for specific adsorbates. This review summarizes the adsorptive properties of natural clays and LDHs for pesticides and related organic compounds. Particular emphasis is given to the surface modification of clay minerals and LDHs with organic ions as a strategy to improve the efficiency of these materials as pesticide adsorbents. Potential applications of unmodified and modified clays and LDHs as adsorbents to prevent and remediate soil and water contamination by pesticides are also discussed.

Keywords

adsorptionclaysformulationslayered double hydroxidesorganic compoundspesticides
Type
Research Article
Information
Clay Minerals , Volume 43 , Issue 2 , June 2008 , pp. 155 - 175
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

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