ICCAS OpenIR
Removal of carbon nanotubes from aqueous environment with filter paper
Yang, Sheng-Tao1,2; Wang, Haifang1; Wang, Yunxia1; Wang, Yanwen1; Nie, Haiyu1,2; Liu, Yuanfang1,2
2011
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume82Issue:4Pages:621-626
AbstractThe potential health and environmental hazards of carbon nanotubes (CNTs) have been a concerned issue. However, in contrast to the wide recognition of the toxicity of CNTs, little attention has been paid to the decontamination/remediation of CNT pollution. In this study, we report that CNTs can be removed from aqueous environment. In the presence of Ca(2+). CNTs aggregate quickly to micron size and then enable easy and effective removal via normal filtration. After filtration, CNT suspension becomes colorless with the remnant CNT concentration less than 0.5 mu g mL(-1), a safe dose based on the published data. The filtration approach also works well in the presence of typical surfactant and dissolved organic matter. The removal efficiency is Ca(2+) concentration-dependent and regulated by the initial pH value and ionic strength. Our study is helpful for future decontamination of CNTs from aqueous environment. (C) 2010 Elsevier Ltd. All rights reserved.
KeywordCarbon Nanotubes Calcium Ions Aggregation Decontamination
DOI10.1016/j.chemosphere.2010.10.048
Indexed BySCI
Language英语
WOS IDWOS:000286788300021
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73872
Collection中国科学院化学研究所
Corresponding AuthorWang, Haifang
Affiliation1.Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China
2.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Yang, Sheng-Tao,Wang, Haifang,Wang, Yunxia,et al. Removal of carbon nanotubes from aqueous environment with filter paper[J]. CHEMOSPHERE,2011,82(4):621-626.
APA Yang, Sheng-Tao,Wang, Haifang,Wang, Yunxia,Wang, Yanwen,Nie, Haiyu,&Liu, Yuanfang.(2011).Removal of carbon nanotubes from aqueous environment with filter paper.CHEMOSPHERE,82(4),621-626.
MLA Yang, Sheng-Tao,et al."Removal of carbon nanotubes from aqueous environment with filter paper".CHEMOSPHERE 82.4(2011):621-626.
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