Biosorption of Cu(II) Ions by Kelps, Large Brown Algae Seaweeds, Saccharina japonica and Saccharina sculpera
Biosorption of Cu(II) Ions by Kelps, Large Brown Algae Seaweeds, Saccharina japonica and Saccharina sculpera
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海藻、大型褐藻、海藻、日本糖精和黄花糖对 Cu(II) 离子的生物吸附
DOI：
10.1007/s40831-018-0191-3
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发表时间：
2018
影响因子：
2.4
通讯作者：
Terakado Osamu
中科院分区：
文献类型：
--
作者：
Kuzuhara Shunsuke;Kudo Katsuyuki;Terakado Osamu
本文研究了两种大型褐藻海藻--日本海带（Escherichina japonica）和杜氏海带（Escherichina sculpera）对水溶液中Cu ~（2+）的吸附作用。当铜平衡浓度为19 mg/L时，褐藻对粒径小于250 μm的海带粉的铜吸收量约为0.3mmol/g.结果发现，铜浓度的进一步增加引起金属吸收的增加，在47 mg/L时达到1.9 mmol/g海带。这种增加可能是由于离子通过凝胶的扩散，形成在吸附的初始阶段，进入海带的内藻酸盐。滴定测量使我们能够获得一个定量的了解吸附位点的表观表面浓度以及吸附容量。
The adsorption experiments of two kinds of kelps, large brown algae seaweeds,Saccharina japonicaandSaccharina sculpera, have been carried out for the aqueous solution Cu2+ions. A copper uptake of around 0.3 mmol per gram of kelp powder with particle size under 250 μm was observed for the former brown algae at the equilibrium copper concentration of 19 mg/L. It was found that further increase in the copper concentration gave rise to the increase in the metal uptake, reaching 1.9 mmol/g kelp at 47 mg/L. This increase was presumably due to the diffusion of the ion through the gel, formed at the initial stage of the adsorption, into the inner alginates of the kelp. Titration measurements allowed us to gain a quantitative understanding of the apparent surface concentration of the adsorption sites as well as the adsorption capacity.