TY - JOUR
T1 - Study of malachite green adsorption by organically modified clay using a batch method
AU - Arellano-Cárdenas, Sofía
AU - López-Cortez, Socorro
AU - Cornejo-Mazón, Maribel
AU - Mares-Gutiérrez, Juan Carlos
N1 - Funding Information:
Financial support from the Secretaría de Estudios de Posgrado e Investigación del Instituto Politécnico Nacional de México (SIP-IPN) and the Consejo Nacional de Ciencia y Tecnología (CONACYT) is appreciated.
PY - 2013/9/1
Y1 - 2013/9/1
N2 - The adsorption of toxic dye malachite green from aqueous effluents by organically modified clay was studied in a batch system. The organoclay (OC) used was prepared by the intercalation of cationic surfactant hexadecyltrimethylammonium bromide in a Mexican montmorillonite. The effects of initial dye concentration, temperature, pH, and contact time were investigated. The OC showed a high dye removal (99.6%) from an initial dye concentration of 60 mg L -1 at pH 6 and 25°C. The adsorption capacity was independent of pH and increased with the temperature. Equilibrium data were well fitted by Langmuir adsorption model. The rate of sorption was adjusted to a pseudo second-order kinetic model.
AB - The adsorption of toxic dye malachite green from aqueous effluents by organically modified clay was studied in a batch system. The organoclay (OC) used was prepared by the intercalation of cationic surfactant hexadecyltrimethylammonium bromide in a Mexican montmorillonite. The effects of initial dye concentration, temperature, pH, and contact time were investigated. The OC showed a high dye removal (99.6%) from an initial dye concentration of 60 mg L -1 at pH 6 and 25°C. The adsorption capacity was independent of pH and increased with the temperature. Equilibrium data were well fitted by Langmuir adsorption model. The rate of sorption was adjusted to a pseudo second-order kinetic model.
KW - Adsorption
KW - Dye
KW - Malachite green
KW - Modified clay
KW - Organoclay
UR - http://www.scopus.com/inward/record.url?scp=84879695004&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2013.04.097
DO - 10.1016/j.apsusc.2013.04.097
M3 - Artículo
SN - 0169-4332
VL - 280
SP - 74
EP - 78
JO - Applied Surface Science
JF - Applied Surface Science
ER -