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Adsorption characteristics of Congo Red onto the chitosan/montmorillonite nanocomposite.
J Hazard Mater. 2007 Aug 25; 147(3):979-85.JH

Abstract

A series of biopolymer chitosan/montmorillonite (CTS/MMT) nanocomposites were prepared by controlling the molar ratio of chitosan (CTS) and montmorillonite (MMT). The nanocomposites were characterized by FTIR and XRD. The effects of different molar ratios of CTS and MMT, initial pH value of the dye solution and temperature on adsorption capacities of samples for Congo Red (CR) dye have been investigated. The adsorption capacities of CTS, MMT and CTS/MMT nanocomposite with CTS to MMT molar ratio of 5:1 for CR were compared. The results indicated that the adsorption capacity of CTS/MMT nanocomposite was higher than the mean values of those of CTS and MMT. The adsorption kinetics and isotherms were also studied. It was shown that all the sorption processes were better fitted by pseudo-second-order equation and the Langmuir equation.

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Authors+Show Affiliations

Wang L
Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
Wang A
No affiliation info available

MeSH

AdsorptionBentoniteChitosanColoring AgentsCongo RedHydrogen-Ion ConcentrationIndustrial WasteKineticsNanocompositesSpectrophotometry, InfraredTemperatureWaste Disposal, FluidX-Ray Diffraction

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

17349744

Citation

Wang, Li, and Aiqin Wang. "Adsorption Characteristics of Congo Red Onto the Chitosan/montmorillonite Nanocomposite." Journal of Hazardous Materials, vol. 147, no. 3, 2007, pp. 979-85.
Wang L, Wang A. Adsorption characteristics of Congo Red onto the chitosan/montmorillonite nanocomposite. J Hazard Mater. 2007;147(3):979-85.
Wang, L., & Wang, A. (2007). Adsorption characteristics of Congo Red onto the chitosan/montmorillonite nanocomposite. Journal of Hazardous Materials, 147(3), 979-85.
Wang L, Wang A. Adsorption Characteristics of Congo Red Onto the Chitosan/montmorillonite Nanocomposite. J Hazard Mater. 2007 Aug 25;147(3):979-85. PubMed PMID: 17349744.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption characteristics of Congo Red onto the chitosan/montmorillonite nanocomposite. AU - Wang,Li, AU - Wang,Aiqin, Y1 - 2007/02/09/ PY - 2006/06/26/received PY - 2007/01/18/revised PY - 2007/01/26/accepted PY - 2007/3/14/pubmed PY - 2007/12/7/medline PY - 2007/3/14/entrez SP - 979 EP - 85 JF - Journal of hazardous materials JO - J Hazard Mater VL - 147 IS - 3 N2 - A series of biopolymer chitosan/montmorillonite (CTS/MMT) nanocomposites were prepared by controlling the molar ratio of chitosan (CTS) and montmorillonite (MMT). The nanocomposites were characterized by FTIR and XRD. The effects of different molar ratios of CTS and MMT, initial pH value of the dye solution and temperature on adsorption capacities of samples for Congo Red (CR) dye have been investigated. The adsorption capacities of CTS, MMT and CTS/MMT nanocomposite with CTS to MMT molar ratio of 5:1 for CR were compared. The results indicated that the adsorption capacity of CTS/MMT nanocomposite was higher than the mean values of those of CTS and MMT. The adsorption kinetics and isotherms were also studied. It was shown that all the sorption processes were better fitted by pseudo-second-order equation and the Langmuir equation. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17349744/Adsorption_characteristics_of_Congo_Red_onto_the_chitosan/montmorillonite_nanocomposite_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00191-4 DB - PRIME DP - Unbound Medicine ER -