期刊
CHEMICAL ENGINEERING JOURNAL
卷 203, 期 -, 页码 423-431出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.07.048
关键词
Adsorption; Pb(II); Phanerochaete chrysosporium; Biomass immobilization; Kinetic; Mechanism
资金
- National Natural Science Foundation of China [51039001, 50808073, 50978088]
- Hunan Key Scientific Research Project [2009FJ1010]
- Hunan Provincial Natural Science Foundation of China [10JJ7005]
- Environmental Protection Technology Research Program of Hunan [2007185]
- New Century Excellent Talents in University [NCET-08-0181]
- Xiangjiang Water Environmental Pollution Control Projects Subjected to the National Key Science and Technology Project for Water Environmental Pollution Control [2009ZX0 7212-001-02, 2009ZX0 7212-001-06]
A novel adsorbent, iron oxide magnetic nanoparticles and Ca-alginate immobilized Phanerochaete chrysosporium, was prepared for removal of Pb(II) ions. Confirmation of the experimental data indicated the pseudo-second-order reaction of the prepared adsorbents. Langmuir isotherm was found to be applicable in terms of relatively high correlation coefficients, which indicated that the adsorption between Pb(II) and the adsorbent was favorable. The thermodynamic analysis showed that the adsorption of Pb(II) was spontaneous and endothermic under the experimental conditions. The adsorption-desorption studies indicated that the prepared adsorbent kept its adsorption efficiencies constant over 5 cycles, maintained about 90%. All the results illustrated that MNPs-Ca-alginate immobilized P. Chrysosporium was a very attractive adsorbent for efficient Pb(II) removal from contaminated aqueous solution. (C) 2012 Published by Elsevier B.V.
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