Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6359683 | Marine Pollution Bulletin | 2013 | 7 Pages |
Abstract
Thorium(IV) biosorption is investigated by citric acid treated mangrove endophytic fungus Fussarium sp. #ZZF51 (CA-ZZF51) from South China Sea. The biosorption process was optimized at pH 4.5, equilibrium time 90 min, initial thorium(IV) concentration 50 mg Lâ1 and adsorbent dose 0.6 g Lâ1 with 90.87% of removal efficiency and 75.47 mg gâ1 of adsorption capacity, which is obviously greater than that (11.35 mg gâ1) of the untreated fungus Fussarium sp. #ZZF51 for thorium(IV) biosorption under the condition of optimization. The experimental data are analyzed by using isotherm and kinetic models. Kinetic data follow the pseudo-second-order model and equilibrium data agree very well with the Langmuir model. In addition, FTIR analysis indicates that hydroxyl, amino, and carbonyl groups act as the important roles in the adsorption process.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
S.K. Yang, N. Tan, X.M. Yan, F. Chen, W. Long, Y.C. Lin,