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Adsorption properties of aluminum magnesium mixed hydroxide for the model anionic dye Reactive Brilliant Red K-2BP.
J Hazard Mater. 2009 May 30; 164(2-3):1098-104.JH

Abstract

The use of aluminum magnesium mixed metal hydroxide (MMH) as adsorbent to remove Reactive Brilliant Red K-2BP (RBR K-2BP), as a model anionic dye, from aqueous solution was investigated. MMH was prepared by coprecipitation and was characterized by XRD, TEM and average particle diameter. Adsorption experiments were carried out as a function of pH, contact time, concentration of dye, adsorbent dosage, and temperature. The results showed that MMH was particularly effective to remove RBR K-2BP, and that the effective pH range for the dye removal was between 4.0 and 11.0, but at pHs lower than 4, dissolution of MMH took place. A significant decline of dye adsorption occurred at pHs above the isoelectric point (IEP). The adsorption of RBR K-2BP on MMH reached equilibrium within 4h. The appropriate adsorbent dosage was 1000 mg/L. The interaction between the surface sites of MMH and the dye ions may be a combination of both anion exchange and surface complexation. Three kinetic models have been evaluated to fit the experimental data. It was shown that the pseudo-second-order model best described the adsorption kinetics of RBR K-2BP on MMH. The equilibrium isotherm showed that the adsorption of RBR K-2BP onto MMH was consistent with the Langmuir and Freundlich equations. And the saturated adsorption capacity of MMH for RBR K-2BP was 657.5mg/g. The adsorption process was endothermic in nature. MMH displayed superior treatment efficiency to the industrial dye effluents from a printing and dyeing plant with a removal efficiency of 93.8-96.7% for colored materials and 77.9-83.6% for COD.

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Authors+Show Affiliations

Li Y
School of Environmental Science & Engineering, Shandong University, Jinan, PR China. yujiang@sdu.edu.cn
Gao B
No affiliation info available
Wu T
No affiliation info available
Wang B
No affiliation info available
Li X
No affiliation info available

MeSH

AdsorptionAluminum HydroxideAzo CompoundsHydrogen-Ion ConcentrationMagnesium HydroxideTemperatureWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18930592

Citation

Li, Yujiang, et al. "Adsorption Properties of Aluminum Magnesium Mixed Hydroxide for the Model Anionic Dye Reactive Brilliant Red K-2BP." Journal of Hazardous Materials, vol. 164, no. 2-3, 2009, pp. 1098-104.
Li Y, Gao B, Wu T, et al. Adsorption properties of aluminum magnesium mixed hydroxide for the model anionic dye Reactive Brilliant Red K-2BP. J Hazard Mater. 2009;164(2-3):1098-104.
Li, Y., Gao, B., Wu, T., Wang, B., & Li, X. (2009). Adsorption properties of aluminum magnesium mixed hydroxide for the model anionic dye Reactive Brilliant Red K-2BP. Journal of Hazardous Materials, 164(2-3), 1098-104. https://doi.org/10.1016/j.jhazmat.2008.09.009
Li Y, et al. Adsorption Properties of Aluminum Magnesium Mixed Hydroxide for the Model Anionic Dye Reactive Brilliant Red K-2BP. J Hazard Mater. 2009 May 30;164(2-3):1098-104. PubMed PMID: 18930592.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption properties of aluminum magnesium mixed hydroxide for the model anionic dye Reactive Brilliant Red K-2BP. AU - Li,Yujiang, AU - Gao,Baoyu, AU - Wu,Tao, AU - Wang,Biao, AU - Li,Xia, Y1 - 2008/09/07/ PY - 2008/03/24/received PY - 2008/09/03/revised PY - 2008/09/03/accepted PY - 2008/10/22/pubmed PY - 2009/5/19/medline PY - 2008/10/22/entrez SP - 1098 EP - 104 JF - Journal of hazardous materials JO - J Hazard Mater VL - 164 IS - 2-3 N2 - The use of aluminum magnesium mixed metal hydroxide (MMH) as adsorbent to remove Reactive Brilliant Red K-2BP (RBR K-2BP), as a model anionic dye, from aqueous solution was investigated. MMH was prepared by coprecipitation and was characterized by XRD, TEM and average particle diameter. Adsorption experiments were carried out as a function of pH, contact time, concentration of dye, adsorbent dosage, and temperature. The results showed that MMH was particularly effective to remove RBR K-2BP, and that the effective pH range for the dye removal was between 4.0 and 11.0, but at pHs lower than 4, dissolution of MMH took place. A significant decline of dye adsorption occurred at pHs above the isoelectric point (IEP). The adsorption of RBR K-2BP on MMH reached equilibrium within 4h. The appropriate adsorbent dosage was 1000 mg/L. The interaction between the surface sites of MMH and the dye ions may be a combination of both anion exchange and surface complexation. Three kinetic models have been evaluated to fit the experimental data. It was shown that the pseudo-second-order model best described the adsorption kinetics of RBR K-2BP on MMH. The equilibrium isotherm showed that the adsorption of RBR K-2BP onto MMH was consistent with the Langmuir and Freundlich equations. And the saturated adsorption capacity of MMH for RBR K-2BP was 657.5mg/g. The adsorption process was endothermic in nature. MMH displayed superior treatment efficiency to the industrial dye effluents from a printing and dyeing plant with a removal efficiency of 93.8-96.7% for colored materials and 77.9-83.6% for COD. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/18930592/Adsorption_properties_of_aluminum_magnesium_mixed_hydroxide_for_the_model_anionic_dye_Reactive_Brilliant_Red_K_2BP_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01337-X DB - PRIME DP - Unbound Medicine ER -