2003
DOI: 10.1016/s0169-1317(02)00156-4
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Clay–iron oxide magnetic composites for the adsorption of contaminants in water

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Cited by 327 publications
(112 citation statements)
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“…Bentoniteiron oxide magnetic composites have been produced by simple co-precipitation method and showed high adsorption capacities for the Ni 2+ , Cu 2+ , Cd 2+ and Zn 2+ in aqueous solution in the range 40-75 mmol of M 2+ g -1 of composite. 33 Expanded or exfoliated vermiculite clay is an extremely interesting material with low cost a highly developed porous structure. This exfoliated mineral has been reported in some studies as effective to remove spilled oil from the water surface due to the strong capillary action of the slit shaped pores.…”
Section: Application Of Iron Phases To Produce Magnetic Materials As mentioning
confidence: 99%
“…Bentoniteiron oxide magnetic composites have been produced by simple co-precipitation method and showed high adsorption capacities for the Ni 2+ , Cu 2+ , Cd 2+ and Zn 2+ in aqueous solution in the range 40-75 mmol of M 2+ g -1 of composite. 33 Expanded or exfoliated vermiculite clay is an extremely interesting material with low cost a highly developed porous structure. This exfoliated mineral has been reported in some studies as effective to remove spilled oil from the water surface due to the strong capillary action of the slit shaped pores.…”
Section: Application Of Iron Phases To Produce Magnetic Materials As mentioning
confidence: 99%
“…To separate the clay adsorbents conveniently, Oliveira et al (2003Oliveira et al ( , 2004) combined iron oxide with clay minerals and achieved two kinds of magnetic particle modified adsorbents, namely, bentonite-iron oxide and zeolite-iron oxide magnetic adsorbents. The adsorbents obtained both have good magnetic property.…”
Section: Magnetic-particle-modified Carbon Adsorbentmentioning
confidence: 99%
“…Os HDLs podem apresentar uma grande variedade de aplicações dependendo de suas propriedades (composição, cristanilidade, estabilidade térmica e outras propriedades físico-químicas). Entre as aplicações mais exploradas pode-se citar o uso como catalisadores heterogêneos [16][17][18] , adsorventes [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] , trocadores aniônicos 19 e em aplicações farmacêuticas 22-24. A troca aniônica ocorre quando os aniôns intercalados no material precursor apresentam interações eletrostáticas fracas com a lamela. O grau de troca depende da tendência de substituição do ânion interlamelar e dos ânions a serem trocados, que é determinado pela densidade de carga de cada ânion.…”
Section: Hidróxido Duplos Lamelaresunclassified
“…Acredita-se que em pHs muito ácidos ou muito básicos pode estar ocorrendo uma certa destruição da estrutura, como observado com outros materiais adsorventes 9,10 . Entretanto, o compósito continuou apresentando boas capacidades de adsorção nos diferentes pHs estudados.…”
Section: Figura 8 Isotermas De Adsorção Do Corante Aniônico Em Diferunclassified
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