naa a22 4500 510749666 CHVBK 20180411083059.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11270-013-1687-x doi (NATIONALLICENCE)springer-10.1007/s11270-013-1687-x Brazilian Palygorskite as Adsorbent for Metal Ions from Aqueous Solution—Kinetic and Equilibrium Studies [Elektronische Daten] [Andrea Oliveira, Luiz Coelho, Saloana Gomes, Israel Costa, Maria Fonseca, Kaline de Sousa, José Espínola, Edson da Silva Filho] Natural palygorskite was used as an adsorbent for the removal of copper, cobalt and nickel from an aqueous solution. All assays were performed under controlled conditions to establish the adsorption capacity of the solid. Initially, the clay was characterized by chemical analysis, XRD, infrared spectroscopy and thermogravimetry. Adsorption experiments for the ions in aqueous solution were carried out by a batch method through which the reaction time, initial concentration of cations, temperature and pH of the aqueous solution were systematically varied. First-order, pseudo-second-order and intraparticle diffusion models were used to describe the kinetic data. The results show that the processes were fitted well by the pseudo-second-order model. Moreover, the equilibrium solid-cation systems followed the Langmuir isotherm model. The results indicate that raw palygorskite could be employed as a low-cost material for the removal of heavy metals from aqueous solution. Springer Science+Business Media Dordrecht, 2013 Palygorskite nationallicence Metal cation nationallicence Adsorption nationallicence Oliveira Andrea Centro de Ciências e Tecnologia Ambiental, UFCG, Pombal, Paraíba, Brazil aut Coelho Luiz Centro de Ciências e Tecnologia Ambiental, UFCG, Pombal, Paraíba, Brazil aut Gomes Saloana Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut Costa Israel Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut Fonseca Maria Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut de Sousa Kaline Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut Espínola José Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut da Silva Filho Edson Laboratório Interdisciplinar de Materiais Avançados, CCN, UFPI, Teresina, Piauí, Brazil aut Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-13 0049-6979 224:9<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1687-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1687-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Oliveira Andrea Centro de Ciências e Tecnologia Ambiental, UFCG, Pombal, Paraíba, Brazil aut NATIONALLICENCE 700 1- Coelho Luiz Centro de Ciências e Tecnologia Ambiental, UFCG, Pombal, Paraíba, Brazil aut NATIONALLICENCE 700 1- Gomes Saloana Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut NATIONALLICENCE 700 1- Costa Israel Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut NATIONALLICENCE 700 1- Fonseca Maria Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut NATIONALLICENCE 700 1- de Sousa Kaline Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut NATIONALLICENCE 700 1- Espínola José Departamento de Química, CCEN, UFPB, João Pessoa, Paraíba, Brazil aut NATIONALLICENCE 700 1- da Silva Filho Edson Laboratório Interdisciplinar de Materiais Avançados, CCN, UFPI, Teresina, Piauí, Brazil aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-13 0049-6979 224:9<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer