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Adsorptive removal of Cd(II) from aqueous solution using natural and modified rice husk.
Bioresour Technol. 2010 Jul; 101(14):5175-9.BT

Abstract

In this study, the natural and modified rice husk were tested to remove Cd(II) ions from water. The modified rice husk was prepared by being treated with alkali. The results showed the Cd(II) adsorption capacity was 73.96, 125.94 mg/g, respectively, for the natural and modified rice husk. The modified rice husk had faster kinetics and higher adsorption capacities than the natural rice husk, which can be attributed to the surface structural changes of the material. Equilibrium adsorption data are more consistent with the Langmuir isotherm equation than with the Freundlich equation. The Cd(II) adsorption on the two adsorbents tends to increase with the increase of pH. The optimum pH for Cd(II) adsorption is 6.5. Both pseudo-first-order and pseudo-second-order equations were able to describe properly the kinetics of Cd(II) adsorption. The desorbability of Cd(II) is about 95.8-99.1% by 0.1M HCl solution.

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Authors+Show Affiliations

Ye H
Institute of Environment Engineering and Science, School of Chemistry and Material Science, Key Laboratory for Catalysis and Materials Science of the State Ethnic Affairs Commissions & Ministry of Education, South Central University for Nationalties, Wuhan 430074, China. yehengpeng@126.com <yehengpeng@126.com>
Zhu Q
No affiliation info available
Du D
No affiliation info available

MeSH

AdsorptionBiodegradation, EnvironmentalCadmiumHydrogen-Ion ConcentrationKineticsOryzaPlantsSolutionsSpectrophotometry, InfraredSpectroscopy, Fourier Transform InfraredWaste Disposal, FluidWaterWater PollutantsWater Purification

Pub Type(s)

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

Language

eng

PubMed ID

20202825

Citation

Ye, Hengpeng, et al. "Adsorptive Removal of Cd(II) From Aqueous Solution Using Natural and Modified Rice Husk." Bioresource Technology, vol. 101, no. 14, 2010, pp. 5175-9.
Ye H, Zhu Q, Du D. Adsorptive removal of Cd(II) from aqueous solution using natural and modified rice husk. Bioresour Technol. 2010;101(14):5175-9.
Ye, H., Zhu, Q., & Du, D. (2010). Adsorptive removal of Cd(II) from aqueous solution using natural and modified rice husk. Bioresource Technology, 101(14), 5175-9. https://doi.org/10.1016/j.biortech.2010.02.027
Ye H, Zhu Q, Du D. Adsorptive Removal of Cd(II) From Aqueous Solution Using Natural and Modified Rice Husk. Bioresour Technol. 2010;101(14):5175-9. PubMed PMID: 20202825.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorptive removal of Cd(II) from aqueous solution using natural and modified rice husk. AU - Ye,Hengpeng, AU - Zhu,Qing, AU - Du,Dongyun, Y1 - 2010/03/03/ PY - 2009/07/24/received PY - 2010/01/30/revised PY - 2010/02/07/accepted PY - 2010/3/6/entrez PY - 2010/3/6/pubmed PY - 2010/11/4/medline SP - 5175 EP - 9 JF - Bioresource technology JO - Bioresour Technol VL - 101 IS - 14 N2 - In this study, the natural and modified rice husk were tested to remove Cd(II) ions from water. The modified rice husk was prepared by being treated with alkali. The results showed the Cd(II) adsorption capacity was 73.96, 125.94 mg/g, respectively, for the natural and modified rice husk. The modified rice husk had faster kinetics and higher adsorption capacities than the natural rice husk, which can be attributed to the surface structural changes of the material. Equilibrium adsorption data are more consistent with the Langmuir isotherm equation than with the Freundlich equation. The Cd(II) adsorption on the two adsorbents tends to increase with the increase of pH. The optimum pH for Cd(II) adsorption is 6.5. Both pseudo-first-order and pseudo-second-order equations were able to describe properly the kinetics of Cd(II) adsorption. The desorbability of Cd(II) is about 95.8-99.1% by 0.1M HCl solution. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/20202825/Adsorptive_removal_of_Cd_II__from_aqueous_solution_using_natural_and_modified_rice_husk_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(10)00298-1 DB - PRIME DP - Unbound Medicine ER -