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Rejected tea as a potential low-cost adsorbent for the removal of methylene blue.
J Hazard Mater. 2010 Mar 15; 175(1-3):126-32.JH

Abstract

The adsorption of methylene blue (MB) from aqueous solution using a low-cost adsorbent, rejected tea (RT), has been studied by batch adsorption technique. The adsorption experiments were carried out under different conditions of initial concentration (50-500 mg/L), solution pH 3-12, RT dose (0.05-1g) and temperature (30-50 degrees C). The equilibrium data were fitted to Langmuir and Freundlich isotherms and the equilibrium adsorption was best described by the Langmuir isotherm model with maximum monolayer adsorption capacities found to be 147, 154 and 156 mg/g at 30, 40 and 50 degrees C, respectively. Three kinetic models, pseudo-first-order, pseudo-second-order and intraparticle diffusion were employed to describe the adsorption mechanism. The experimental results showed that the pseudo-second-order equation is the best model that describes the adsorption behavior with the coefficient of correlation R(2)>or=0.99. The results suggested that RT has high potential to be used as effective adsorbent for MB removal.

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Authors+Show Affiliations

Nasuha N
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
Hameed BH
No affiliation info available
Din AT
No affiliation info available

MeSH

AdsorptionColoring AgentsDiffusionHydrogen-Ion ConcentrationIndustrial WasteKineticsMethylene BlueMicroscopy, Electron, ScanningSolutionsSpectroscopy, Fourier Transform InfraredTeaTemperatureTime FactorsWater Pollutants, ChemicalWater Purification

Pub Type(s)

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

Language

eng

PubMed ID

19879046

Citation

Nasuha, N, et al. "Rejected Tea as a Potential Low-cost Adsorbent for the Removal of Methylene Blue." Journal of Hazardous Materials, vol. 175, no. 1-3, 2010, pp. 126-32.
Nasuha N, Hameed BH, Din AT. Rejected tea as a potential low-cost adsorbent for the removal of methylene blue. J Hazard Mater. 2010;175(1-3):126-32.
Nasuha, N., Hameed, B. H., & Din, A. T. (2010). Rejected tea as a potential low-cost adsorbent for the removal of methylene blue. Journal of Hazardous Materials, 175(1-3), 126-32. https://doi.org/10.1016/j.jhazmat.2009.09.138
Nasuha N, Hameed BH, Din AT. Rejected Tea as a Potential Low-cost Adsorbent for the Removal of Methylene Blue. J Hazard Mater. 2010 Mar 15;175(1-3):126-32. PubMed PMID: 19879046.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rejected tea as a potential low-cost adsorbent for the removal of methylene blue. AU - Nasuha,N, AU - Hameed,B H, AU - Din,Azam T Mohd, Y1 - 2009/10/03/ PY - 2009/05/05/received PY - 2009/09/25/revised PY - 2009/09/28/accepted PY - 2009/11/3/entrez PY - 2009/11/3/pubmed PY - 2010/4/30/medline SP - 126 EP - 32 JF - Journal of hazardous materials JO - J Hazard Mater VL - 175 IS - 1-3 N2 - The adsorption of methylene blue (MB) from aqueous solution using a low-cost adsorbent, rejected tea (RT), has been studied by batch adsorption technique. The adsorption experiments were carried out under different conditions of initial concentration (50-500 mg/L), solution pH 3-12, RT dose (0.05-1g) and temperature (30-50 degrees C). The equilibrium data were fitted to Langmuir and Freundlich isotherms and the equilibrium adsorption was best described by the Langmuir isotherm model with maximum monolayer adsorption capacities found to be 147, 154 and 156 mg/g at 30, 40 and 50 degrees C, respectively. Three kinetic models, pseudo-first-order, pseudo-second-order and intraparticle diffusion were employed to describe the adsorption mechanism. The experimental results showed that the pseudo-second-order equation is the best model that describes the adsorption behavior with the coefficient of correlation R(2)>or=0.99. The results suggested that RT has high potential to be used as effective adsorbent for MB removal. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19879046/Rejected_tea_as_a_potential_low_cost_adsorbent_for_the_removal_of_methylene_blue_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)01599-4 DB - PRIME DP - Unbound Medicine ER -