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Issue 9, 2018
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Adsorption of Dicamba herbicide onto a carbon replica obtained from a layered double hydroxide

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Abstract

In this work, a carbon replica derived from a vinylbenzenesulfonate-intercalated layered double hydroxide (CR-LDH) was applied to remove the Dicamba organochlorine herbicide from aqueous solution. The samples were characterized by several experimental techniques such as X-ray diffraction (XRD), thermogravimetric analysis coupled with differential scanning calorimetry and mass spectrometry (TGA-DSC-MS), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Raman spectroscopy, N2 adsorption/desorption and zeta potential analysis. The CR-LDH sample presents a very high specific surface area (2345 m2 g−1). The adsorption experiment typically followed the Langmuir isotherm model and the adsorption kinetics was best fitted with a pseudo second-order model. The maximum adsorption capacity of Dicamba herbicide onto CR-LDH was 279 mg g−1. CR-LDH presented a higher adsorption capacity than other carbon adsorbent materials reported in the literature.

Graphical abstract: Adsorption of Dicamba herbicide onto a carbon replica obtained from a layered double hydroxide

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Publication details

The article was received on 03 Oct 2017, accepted on 18 Dec 2017 and first published on 18 Dec 2017


Article type: Paper
DOI: 10.1039/C7DT03720A
Citation: Dalton Trans., 2018,47, 3119-3127
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    Adsorption of Dicamba herbicide onto a carbon replica obtained from a layered double hydroxide

    M. C. E. Pinto, R. M. M. Santos, R. G. L. Gonçalves, V. G. O. Duarte, P. D. Borges, F. Leroux, V. R. L. Constantino, C. M. S. Izumi, F. G. Pinto and J. Tronto, Dalton Trans., 2018, 47, 3119
    DOI: 10.1039/C7DT03720A

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