Journal
APPLIED CLAY SCIENCE
Volume 50, Issue 3, Pages 292-298Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.clay.2010.08.002
Keywords
Hydrotalcite; Pesticide; Adsorption; Dinitrophenol; Dinitrocresol
Funding
- Spain's Ministerio de Asuntos Exteriores y de Cooperacion (AECI) [A/4879/06, A/8191/07]
- Ministerio de Ciencia e Innovacion [AGL2008-04031-CO2-02]
- Junta de Andalucia through Research Group [FQM-214]
- Ministerio de Asuntos Exteriores y Cooperacion (Spain)
- AECID
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The ability of MgAl layered double hydroxides (LDHs) and their calcined products to adsorb the water contaminants 2 4-dinitrophenol (DNP) and 2-methyl-4 6-dinitrophenol (DNOC) was assessed Adsorption tests were conducted on LDHs with variable Mg/Al ratios (and variable layer charge) pH values contact times and initial pesticide concentrations to identify the optimum conditions for the intended purpose Adsorbents and adsorption products were characterized by X-ray diffraction and FT-IR spectroscopy as well as atomic absorption spectroscopy and thermal analyses The amounts of pesticides removed from water were determined by UV-Vis spectrophotometry All adsorbents except the carbonate-containing hydrotalcite possessed a very high adsorption capacity for both contaminants (C) 2010 Elsevier B V All rights reserved
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