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High efficient removal of mercury from aqueous solution by polyaniline/humic acid nanocomposite.
J Hazard Mater. 2010 Mar 15; 175(1-3):404-9.JH

Abstract

A composite sorbent PANI/HA was prepared by adding humic acid (HA) into chemical oxidation process of polyaniline (PANI). The sorbent was characterized by BET analysis, transmission electron microscopy, and FT-IR spectra. Batch adsorption results showed that the sorbent had high affinity to Hg(II) in aqueous solutions. The adsorption kinetics results of Hg(II) showed that the adsorption reached equilibrium within 200 min and adsorption rates could be described by pseudo-second-order kinetics. Sorption of Hg(II) to PANI/HA agreed well to the Langmuir adsorption model at different ionic strengths with the maximum adsorption capacity of 671 mg g(-1) (I=0.20 M). The experimental results showed solution pH values had a major impact on Hg(II) adsorption and with the help of HA the sorbent can effectively remove Hg(II) in a wide pH range (pH 4-7.5). An adsorption mechanism was proposed based on the XPS results.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19896766

Citation

Zhang, Ya, et al. "High Efficient Removal of Mercury From Aqueous Solution By Polyaniline/humic Acid Nanocomposite." Journal of Hazardous Materials, vol. 175, no. 1-3, 2010, pp. 404-9.
Zhang Y, Li Q, Sun L, et al. High efficient removal of mercury from aqueous solution by polyaniline/humic acid nanocomposite. J Hazard Mater. 2010;175(1-3):404-9.
Zhang, Y., Li, Q., Sun, L., Tang, R., & Zhai, J. (2010). High efficient removal of mercury from aqueous solution by polyaniline/humic acid nanocomposite. Journal of Hazardous Materials, 175(1-3), 404-9. https://doi.org/10.1016/j.jhazmat.2009.10.019
Zhang Y, et al. High Efficient Removal of Mercury From Aqueous Solution By Polyaniline/humic Acid Nanocomposite. J Hazard Mater. 2010 Mar 15;175(1-3):404-9. PubMed PMID: 19896766.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High efficient removal of mercury from aqueous solution by polyaniline/humic acid nanocomposite. AU - Zhang,Ya, AU - Li,Qin, AU - Sun,Li, AU - Tang,Rong, AU - Zhai,Jianping, Y1 - 2009/10/14/ PY - 2009/06/06/received PY - 2009/09/06/revised PY - 2009/10/05/accepted PY - 2009/11/10/entrez PY - 2009/11/10/pubmed PY - 2010/4/30/medline SP - 404 EP - 9 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 175 IS - 1-3 N2 - A composite sorbent PANI/HA was prepared by adding humic acid (HA) into chemical oxidation process of polyaniline (PANI). The sorbent was characterized by BET analysis, transmission electron microscopy, and FT-IR spectra. Batch adsorption results showed that the sorbent had high affinity to Hg(II) in aqueous solutions. The adsorption kinetics results of Hg(II) showed that the adsorption reached equilibrium within 200 min and adsorption rates could be described by pseudo-second-order kinetics. Sorption of Hg(II) to PANI/HA agreed well to the Langmuir adsorption model at different ionic strengths with the maximum adsorption capacity of 671 mg g(-1) (I=0.20 M). The experimental results showed solution pH values had a major impact on Hg(II) adsorption and with the help of HA the sorbent can effectively remove Hg(II) in a wide pH range (pH 4-7.5). An adsorption mechanism was proposed based on the XPS results. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19896766/High_efficient_removal_of_mercury_from_aqueous_solution_by_polyaniline/humic_acid_nanocomposite_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)01657-4 DB - PRIME DP - Unbound Medicine ER -