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Adsorption kinetics of platinum group elements onto macromolecular organic matter in seawater

文献类型：期刊论文

作者Liu, K; Gao, XL; Xing, QG; Chen, FS
刊名ACTA OCEANOLOGICA SINICA
出版日期2019-08
卷号38期号:8页码:8-16
关键词adsorption kinetics platinum group elements macromolecular organic compounds natural organic matter seawater
ISSN号0253-505X
DOI10.1007/s13131-019-1433-3
产权排序[Liu, Kai ; Gao, Xuelu ; Xing, Qianguo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China ; [Liu, Kai ; Gao, Xuelu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Liu, Kai] Dongying Municipal Bur Marine Dev & Fisheries, Dongying 257000, Peoples R China ; [Chen, Fushan] Qingdao Univ Sci & Technol, Coll Marine Sci & Bioengn, Qingdao 266042, Shandong, Peoples R China
文献子类Article
英文摘要Adsorption kinetics of the interaction between Pt, Pd and Rh (defined here as platinum group elements, PGEs) ions and macromolecular organic compounds (MOCs, >10 kDa), including humic acid, carrageenan and bovine serum albumin, and different cutoff fractions of natural organic matter (>1 kDa and >3 kDa) obtained from seawater using centrifugal ultrafiltration devices were investigated. For a given element, all the adsorption kinetics did not reach equilibrium except the interaction between Pt and >1 kDa cutoff, and between Pd and humic acid. For all the tested MOCs, the adsorption kinetics could be divided into two stages, a rapid adsorption process in the first 8 h and the desorption stage after the first 8 h until the equilibrium. The change trend of partition coefficient (log(10)K(d)) values with experiment time was consistent with that of the kinetic curves. However, in the interaction between PGE ions and natural dissolved organic matter (NDOM), an obvious difference in the change trends of log(10)K(d) and kinetic curves was observed. It indicated that the partition behavior of PGE ions interacting with NDOM in seawater was a combined effect of different organic constituents. The adsorption and log(10)K(d) of PGEs in the >1 kDa NDOM fraction were higher and more stable than those in the >3 kDa NDOM fraction. The results also indicated that the 1-3 kDa NDOM may dominate the interaction between PGEs ions and NDOM. Moreover, no kinetic model could perfectly simulate the adsorption process. It indicated that the colloidal struction and morphology of MOCs or NDOM in seawater might be inhomogeneous. Hence, the interaction between PGE ions and organic matter in seawater was a complicated process and needs further research.
WOS关键词HUMIC SUBSTANCES ; PALLADIUM ; BEHAVIOR ; RHODIUM ; FRACTIONATION ; METALS ; WATERS ; RIVER ; SEA ; FLUORESCENCE
WOS研究方向Oceanography
语种英语
WOS记录号WOS:000478744600002
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41376083] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050303]
源URL[http://ir.yic.ac.cn/handle/133337/24891]  
专题烟台海岸带研究所_海岸带信息集成与综合管理实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Dongying Municipal Bur Marine Dev & Fisheries, Dongying 257000, Peoples R China;
4.Qingdao Univ Sci & Technol, Coll Marine Sci & Bioengn, Qingdao 266042, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Liu, K,Gao, XL,Xing, QG,et al. Adsorption kinetics of platinum group elements onto macromolecular organic matter in seawater[J]. ACTA OCEANOLOGICA SINICA,2019,38(8):8-16.
APA Liu, K,Gao, XL,Xing, QG,&Chen, FS.(2019).Adsorption kinetics of platinum group elements onto macromolecular organic matter in seawater.ACTA OCEANOLOGICA SINICA,38(8),8-16.
MLA Liu, K,et al."Adsorption kinetics of platinum group elements onto macromolecular organic matter in seawater".ACTA OCEANOLOGICA SINICA 38.8(2019):8-16.

入库方式： OAI收割

来源：烟台海岸带研究所

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