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Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose waste biomass.
J Hazard Mater. 2009 Jan 30; 161(2-3):941-7.JH

Abstract

Distillation waste of rose petals was used to remove Cu(II) and Cr(III) from aqueous solutions. The results demonstrated the dependency of metal sorption on pH, sorbent dose, sorbent size, initial bulk concentration, time and temperature. A dosage of 1g/L of rose waste biomass was found to be effective for maximum uptake of Cu(II) and Cr(III). Optimum sorption temperature and pH for Cu(II) and Cr(III) were 303+/-1K and 5, respectively. The Freundlich regression model and pseudo-second-order kinetic model were resulted in high correlation coefficients and described well the sorption of Cu(II) and Cr(III) on rose waste biomass. At equilibrium q(max) (mg/g) of Cu(II) and Cr(III) was 55.79 and 67.34, respectively. The free energy change (DeltaG degrees) for Cu(II) and Cr(III) sorption process was found to be -0.829 kJ/mol and -1.85 kJ/mol, respectively, which indicates the spontaneous nature of sorption process. Other thermodynamic parameters such as entropy change (DeltaS degrees), enthalpy (DeltaH degrees)and activation energy (DeltaE) were found to be 0.604 J mol(-1)K(-1), -186.95 kJ/mol and 68.53 kJ/mol, respectively for Cu(II) and 0.397 J mol(-1)K(-1), -119.79 kJ/mol and 114.45 kJ/mol, respectively for Cr(III). The main novelty of this work was the determination of shortest possible sorption time for Cu(II) and Cr(III) in comparison to earlier studies. Almost over 98% of Cu(II) and Cr(III) were removed in only first 20 min at an initial concentration of 100 mg/L.

Authors+Show Affiliations

Industrial Biotechnology Laboratory, Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18508197

Citation

Iftikhar, Abdur Rauf, et al. "Kinetic and Thermodynamic Aspects of Cu(II) and Cr(III) Removal From Aqueous Solutions Using Rose Waste Biomass." Journal of Hazardous Materials, vol. 161, no. 2-3, 2009, pp. 941-7.
Iftikhar AR, Bhatti HN, Hanif MA, et al. Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose waste biomass. J Hazard Mater. 2009;161(2-3):941-7.
Iftikhar, A. R., Bhatti, H. N., Hanif, M. A., & Nadeem, R. (2009). Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose waste biomass. Journal of Hazardous Materials, 161(2-3), 941-7. https://doi.org/10.1016/j.jhazmat.2008.04.040
Iftikhar AR, et al. Kinetic and Thermodynamic Aspects of Cu(II) and Cr(III) Removal From Aqueous Solutions Using Rose Waste Biomass. J Hazard Mater. 2009 Jan 30;161(2-3):941-7. PubMed PMID: 18508197.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose waste biomass. AU - Iftikhar,Abdur Rauf, AU - Bhatti,Haq Nawaz, AU - Hanif,Muhammad Asif, AU - Nadeem,Razyia, Y1 - 2008/04/22/ PY - 2007/10/06/received PY - 2008/04/13/revised PY - 2008/04/14/accepted PY - 2008/5/30/pubmed PY - 2009/3/4/medline PY - 2008/5/30/entrez SP - 941 EP - 7 JF - Journal of hazardous materials JO - J Hazard Mater VL - 161 IS - 2-3 N2 - Distillation waste of rose petals was used to remove Cu(II) and Cr(III) from aqueous solutions. The results demonstrated the dependency of metal sorption on pH, sorbent dose, sorbent size, initial bulk concentration, time and temperature. A dosage of 1g/L of rose waste biomass was found to be effective for maximum uptake of Cu(II) and Cr(III). Optimum sorption temperature and pH for Cu(II) and Cr(III) were 303+/-1K and 5, respectively. The Freundlich regression model and pseudo-second-order kinetic model were resulted in high correlation coefficients and described well the sorption of Cu(II) and Cr(III) on rose waste biomass. At equilibrium q(max) (mg/g) of Cu(II) and Cr(III) was 55.79 and 67.34, respectively. The free energy change (DeltaG degrees) for Cu(II) and Cr(III) sorption process was found to be -0.829 kJ/mol and -1.85 kJ/mol, respectively, which indicates the spontaneous nature of sorption process. Other thermodynamic parameters such as entropy change (DeltaS degrees), enthalpy (DeltaH degrees)and activation energy (DeltaE) were found to be 0.604 J mol(-1)K(-1), -186.95 kJ/mol and 68.53 kJ/mol, respectively for Cu(II) and 0.397 J mol(-1)K(-1), -119.79 kJ/mol and 114.45 kJ/mol, respectively for Cr(III). The main novelty of this work was the determination of shortest possible sorption time for Cu(II) and Cr(III) in comparison to earlier studies. Almost over 98% of Cu(II) and Cr(III) were removed in only first 20 min at an initial concentration of 100 mg/L. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18508197/Kinetic_and_thermodynamic_aspects_of_Cu_II__and_Cr_III__removal_from_aqueous_solutions_using_rose_waste_biomass_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)00581-5 DB - PRIME DP - Unbound Medicine ER -