Evaluation of the marine algae Ulva fasciata and Sargassum sp for the biosorption of Cu(II) from aqueous solutions
Evaluation of the marine algae Ulva fasciata and Sargassum sp for the biosorption of Cu(II) from aqueous solutions
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DOI：
10.1016/j.biortech.2006.01.010
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发表时间：
2007-01-01
影响因子：
11.4
通讯作者：
IYer, C. S. P.
中科院分区：
文献类型：
--
作者：
Karthikeyan, S.;Balasubramanian, R.;IYer, C. S. P.
研究了两种不同海藻（绿色藻类石莼和褐藻）对水中重金属离子的吸附特性。平衡等温线和动力学进行了研究，以评估的相对能力的两种藻类螯合铜（II）从水溶液中。在pH值为5.5 +/- 0.5的溶液中，获得的最大生物吸附容量为U fasciata 73.5 mg g（-1）和Sargassum sp. 72.5 mg g（-1）。一个显着的分数，总铜（II）的吸收在30分钟内实现。铜（II）的生物吸附剂的吸收是最好的描述由伪二阶速率模型。(c)2006爱思唯尔有限公司保留所有权利。
In this study, the adsorption properties of two different marine algae (Ulva fasciata (green algae) and Sargassum sp. (brown algae)) were investigated. Equilibrium isotherms and kinetics were studied to evaluate the relative ability of the two algae to sequester Cu(II) from aqueous solutions. The maximum biosorption capacity obtained was 73.5 mg g(-1) for U fasciata and 72.5 mg g(-1) for Sargassum sp. at a solution pH of 5.5 +/- 0.5. A significant fraction of the total copper(II) uptake was achieved within 30 min. The copper(II) uptake by the biosorbents was best described by pseudo-second-order rate model. (c) 2006 Elsevier Ltd. All rights reserved.