Removal of methylene blue from aqueous solution by fibrous clay minerals

Hajjaji, M.; Alami, A; Bouadili, A. El

doi:10.1016/j.jhazmat.2005.11.048

Cited by 105 publications

(47 citation statements)

References 17 publications

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“…Removal of cationic dye from wastewater can be achieved by adsorption onto solid surfaces. Methylene blue (MB) is a cationic dye and absorbs on a variety of solids, such as kaolinite [1], montmorillonite [2][3][4][5][6], palygorskite [7,8], sepiolite [7,9], diatomaceous earth [10,11], activated carbons [12], and even wastes of phosphorous rocks [13]. The mechanism of MB removal using these sorbents was attributed to cation exchange.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of methylene blue removal from water by swelling clays

Li¹,

Chang²,

Jiang³

et al. 2011

Chemical Engineering Journal

105

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Section: Introductionmentioning

confidence: 99%

Mechanism of methylene blue removal from water by swelling clays

Li¹,

Chang²,

Jiang³

et al. 2011

Chemical Engineering Journal

105

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“…[1][2][3][4][5][6][7] Estes minerais são filossilicatos hidratados que, devido ao fenômeno de substituição isomórfica na sua estrutura cristalina lamelar, por exemplo, de Si +4 por Al +3 , apresentam cátions trocá-veis entre as lâminas e por isto possuem alta capacidade de troca catiônica (CTC). 8 Bentonitas 7 são argilas do grupo das montmorillonitas, que possuem como cátions de compensação Na + e Ca +2 .…”

Section: Introductionunclassified

Caracterização de argilas bentonitas e diatomitas e sua aplicação como adsorventes

et al. 2009

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Recebido em 23/9/08; aceito em 28/4/09; publicado na web em 6/10/09 BENTONITES AND DIATOMITES CLAYS CHARACTERIZATION AND APLICATION IN ADSORPTION. Five samples of natural clays denominated: diatomite, CN-20, CN-29, CN-40 and CN-45 from Aliança Latina LTDA were characterized by differents supplementary techniques such as: XRD, chemical analysis, adsorption N 2 measurements, infrared spectroscopy analysis, thermogravimetric analysis. Clays were tested in adsorption of blue methylene. All of isotherms adjust in a model of physics adsorption with formation of multilayers, however in the case of diatomite was a favorable adsorption (type II) and the CNs were a not favorable adsorption (type III). In the case of CNs had flocculation of clay in high concentration of coloring.

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“…It also has often served as a model compound for removing organic contaminants and colored pollutants from aqueous solutions [13][14][15][16][17] . In order to test the application of BFS in textile wastewater treatment, the kinetic data on adsorption studies were analyzed with the aim to understand the adsorption mechanism of the dye molecules onto the BFS.…”

Section: Introductionmentioning

confidence: 99%