Uranium biosorption from aqueous solution onto Eichhornia crassipes

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成果类型：

期刊论文

作者：

Yi, Zheng-ji;Yao, Jun*;Chen, Hui-lun;Wang, Fei;Yuan, Zhi-min;...

通讯作者：

Yao, Jun

作者机构：

[Liu, Xing; Yi, Zheng-ji] Hengyang Normal Univ, Dept Chem & Mat Sci, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang 421008, Peoples R China.

[Yuan, Zhi-min; Yao, Jun; Wang, Fei; Yi, Zheng-ji; Chen, Hui-lun] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China.

[Yuan, Zhi-min; Yao, Jun; Wang, Fei; Yi, Zheng-ji; Chen, Hui-lun] Univ Sci & Technol Beijing, Natl Int Cooperat Base Environm & Energy, Xueyuan Rd 30, Beijing 100083, Peoples R China.

通讯机构：

[Yao, Jun] U

Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China.

Univ Sci & Technol Beijing, Natl Int Cooperat Base Environm & Energy, Xueyuan Rd 30, Beijing 100083, Peoples R China.

语种：

英文

关键词：

Biosorption;Eichhornia crassipes;Isotherm;Kinetics;Uranium

期刊：

Journal of Environmental Radioactivity

ISSN：

0265-931X

年：

2016

卷：

154

页码：

43-51

DOI：

10.1016/j.jenvrad.2016.01.012

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41273131, 41273092, 41430106, 41573080]; Aid programs for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province; Key Discipline of Hunan Province

机构署名：

本校为第一机构

院系归属：

化学与材料科学学院

摘要：

Batch experiments were conducted to investigate the biosorption of U(VI) from aqueous solutions onto the nonliving biomass of an aquatic macrophyte Eichhornia crassipes. The results showed that the adsorption of U(VI) onto E. crassipes was highly pH-dependent and the best pH for U(VI) removal was 5.5. U(VI) adsorption proceeded rapidly with an equilibrium time of 30 min and conformed to pseudo-second-order kinetics. The Langmuir isotherm model was determined to best describe U(VI) biosorption with a maximum monolayer adsorption capacity of 142.85 mg/g. Thermodynamic calculation results indicat...

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Uranium biosorption from aqueous solution onto Eichhornia crassipes

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