Biosorption of Cu^(2+) and Zn^(2+) by raw and autoclaved Rocella phycopsis

查看全文 作　　者：Emine Yalc[1]ln;Kltigin [1]avusoglu;Kadir [1]Klnalloglu

机构地区：[1]Department of Biology, Faculty of Science and Art, University of Giresun, 28049 Debboy Location, Giresun-Turkey

出　　处：《Journal of Environmental Sciences》索引2010年第22卷第3期,共7页

摘　　要：The behavior of Cu2+ and Zn2+ biosorption onto raw and modified Roccella phycopsis from aqueous solutions was studied. Modification process was applied by autoclavation at 121°C for 30 min. The effcts of pH, initial metal concentration and biosorbent dosage were investigated. The maximum Cu2+ biosorption was achieved at pH 5.0 and the maximum biosorption capacities of 31.5 and 37.8 mg/g were recorded for raw and modified biosorbent, respectively. In the case of Zn2+ biosorption, maximum biosorption capacities were obtained at pH 4.0 as 29.1 and 35.3 mg/g for raw and modified biosorbent, respectively. Biosorption of Zn2+ and Cu2+ on all form of R. phycopsis increased much quickly with increasing initial metal concentrations from 10 to 100 mg/L. After modification process, probable changes in the surface polarity of raw and modified R. phycopsis were investigated by contact angle measurements. As expected, R. phycopsis has a polar surface and shows a highest contact angle with water, while after autoclavation water contact angle of R. phycopsis was significantly decreased from 47.5° to 34.4°. 关键词：生物吸附剂锌吸附原料接触角测量铜蒸压表面极性改造过程

相关文献

参考文献（22）
引证文献（7）
耦合文献（0）

参考文献(22)

引证文献(7)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Biosorption of Cu^(2+) and Zn^(2+) by raw and autoclaved Rocella phycopsis

参考文献(22)

引证文献(7)

用户提示