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Updated: May 19, 2026

Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
Published on: May 25, 2016
Adsorption of phosphate from aqueous solution by hydrous zirconium oxide
Liana Alvares Rodrigues1, Leandro José Maschio, Luciana de Simone Cividanes Coppio
1lnstituto Tecnológico de Aeronáutica-ITA/CTA, Praça Mal. Eduardo Gomes 50, CEP 12228-900, São José dos Campos, São Paulo, Brazil. lika_eng@yahoo.com.br
Abstract:
Synthetic ZrO2 x nH2O was used for phosphate removal from aqueous solution. The optimum adsorbent dose obtained for phosphate adsorption on to hydrous zirconium oxide was 0.1 g. The kinetic process was described very well by a pseudo-second-order rate model. The phosphate adsorption tended to increase with the decrease in pH. The adsorption capacity increased from 61 to 66 mg g(-1) when the temperature was increased from 298 to 338 K. A phosphate desorption of approximately 74% was obtained using water at pH 12.
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