Adsorption of cadmium on cerium oxide nanoparticles and oyster shells

This study investigated the adsorption of cadmium (Cd(II)) by cerium oxide nanoparticles (CeO2 NPs) and oyster shells in seawater. The results showed that the addition of Cd(II) significantly inhibited the agglomeration of CeO2 NPs both in DI water and seawater, increased the positive charges of CeO...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 128; no. 1; pp. 12179 - 12182
Main Authors Ji, Yongbo, Liu, Zhuomiao, Dang, Yonghui, Xu, Lina, Ning, Fangyuan, Xue, Yinhao, Wei, Yongpeng, Dai, Yanhui
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2018
Subjects
Adsorption
Bioavailability
Cadmium
Cerium
Cerium oxides
Heavy metals
Nanoparticles
Seawater
Shellfish
Shells
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Summary:This study investigated the adsorption of cadmium (Cd(II)) by cerium oxide nanoparticles (CeO2 NPs) and oyster shells in seawater. The results showed that the addition of Cd(II) significantly inhibited the agglomeration of CeO2 NPs both in DI water and seawater, increased the positive charges of CeO2 NPs in DI water and neutralized the negative charges of CeO2 NPs in seawater. Additionally, CeO2 NPs could adsorb Cd and the bioavailability of Cd was reduced in the presence of oyster shells. This study demonstrated that the adsorption of metals on shells should not be neglected for the accumulation of metals by shellfish.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/128/1/012179