Adsorption of Phenanthrene on Multi-Walled Carbon Nanotubes in the Presence of Nonionic Surfactants
The bioavailability and mobility of phenanthrene (Phe) adsorbed by multi-walled carbon nanotubes (MWCNTs) may be substantially influenced by nonionic surfactants used both in the synthesis and dispersion of MWCNTs. The adsorption mechanisms of Phe adsorbed onto MWCNTs under the different nonionic su...
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Veröffentlicht in: | International journal of environmental research and public health 2023-02, Vol.20 (4), p.3648 |
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description | The bioavailability and mobility of phenanthrene (Phe) adsorbed by multi-walled carbon nanotubes (MWCNTs) may be substantially influenced by nonionic surfactants used both in the synthesis and dispersion of MWCNTs. The adsorption mechanisms of Phe adsorbed onto MWCNTs under the different nonionic surfactants Tween 80 (TW-80) and Triton X-100 (TX-100) in the aqueous phase were investigated in terms of changes in the MWCNTs' compositions and structures. The results showed that TW-80 and TX-100 were easily adsorbed onto MWCNTs. Phe adsorption data onto MWCNTs were better suited to the Langmuir equation than the Freundlich equation. Both TW-80 and TX-100 reduced the adsorption capacity of Phe onto MWCNTs. When TW-80 and TX-100 were added in the adsorption system, the saturated adsorption mass of Phe decreased from 35.97 mg/g to 27.10 and 29.79 mg/g, respectively, which can be attributed to the following three reasons. Firstly, the hydrophobic interactions between MWCNTs and Phe became weakened in the presence of nonionic surfactants. Secondly, the nonionic surfactants covered the adsorption sites of MWCNTs, which caused Phe adsorption to be reduced. Finally, nonionic surfactants can also promote the desorption of Phe from MWCNTs. |
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The adsorption mechanisms of Phe adsorbed onto MWCNTs under the different nonionic surfactants Tween 80 (TW-80) and Triton X-100 (TX-100) in the aqueous phase were investigated in terms of changes in the MWCNTs' compositions and structures. The results showed that TW-80 and TX-100 were easily adsorbed onto MWCNTs. Phe adsorption data onto MWCNTs were better suited to the Langmuir equation than the Freundlich equation. Both TW-80 and TX-100 reduced the adsorption capacity of Phe onto MWCNTs. When TW-80 and TX-100 were added in the adsorption system, the saturated adsorption mass of Phe decreased from 35.97 mg/g to 27.10 and 29.79 mg/g, respectively, which can be attributed to the following three reasons. Firstly, the hydrophobic interactions between MWCNTs and Phe became weakened in the presence of nonionic surfactants. Secondly, the nonionic surfactants covered the adsorption sites of MWCNTs, which caused Phe adsorption to be reduced. Finally, nonionic surfactants can also promote the desorption of Phe from MWCNTs.</description><identifier>ISSN: 1660-4601</identifier><identifier>ISSN: 1661-7827</identifier><identifier>EISSN: 1660-4601</identifier><identifier>DOI: 10.3390/ijerph20043648</identifier><identifier>PMID: 36834341</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Adsorption ; Bioavailability ; Carbon ; Equilibrium ; Experiments ; Hydrophobicity ; Influence ; Kinetics ; Nanotechnology ; Nanotubes ; Nonionic surfactants ; Organic chemicals ; Phenanthrene ; Pollutants ; Surface active agents ; Surfactants ; Toxicity</subject><ispartof>International journal of environmental research and public health, 2023-02, Vol.20 (4), p.3648</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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The adsorption mechanisms of Phe adsorbed onto MWCNTs under the different nonionic surfactants Tween 80 (TW-80) and Triton X-100 (TX-100) in the aqueous phase were investigated in terms of changes in the MWCNTs' compositions and structures. The results showed that TW-80 and TX-100 were easily adsorbed onto MWCNTs. Phe adsorption data onto MWCNTs were better suited to the Langmuir equation than the Freundlich equation. Both TW-80 and TX-100 reduced the adsorption capacity of Phe onto MWCNTs. When TW-80 and TX-100 were added in the adsorption system, the saturated adsorption mass of Phe decreased from 35.97 mg/g to 27.10 and 29.79 mg/g, respectively, which can be attributed to the following three reasons. Firstly, the hydrophobic interactions between MWCNTs and Phe became weakened in the presence of nonionic surfactants. Secondly, the nonionic surfactants covered the adsorption sites of MWCNTs, which caused Phe adsorption to be reduced. Finally, nonionic surfactants can also promote the desorption of Phe from MWCNTs.</description><subject>Adsorption</subject><subject>Bioavailability</subject><subject>Carbon</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Hydrophobicity</subject><subject>Influence</subject><subject>Kinetics</subject><subject>Nanotechnology</subject><subject>Nanotubes</subject><subject>Nonionic surfactants</subject><subject>Organic chemicals</subject><subject>Phenanthrene</subject><subject>Pollutants</subject><subject>Surface active agents</subject><subject>Surfactants</subject><subject>Toxicity</subject><issn>1660-4601</issn><issn>1661-7827</issn><issn>1660-4601</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkc2LFDEQxYMo7jp69SgNXrz0mnTlo3MRhmH9gHVdUPEYMkn1doaeZEy6Bf97M-y67koOCS-vflXFI-Qlo2cAmr4NO8yHsaOUg-T9I3LKpKQtl5Q9vvc-Ic9K2VEKPZf6KTkB2QMHzk6JW_uS8mEOKTZpaK5GjDbOY8aITZU-L9Mc2h92mtA3G5u3Vbu0Mc3LFksTYjOP2FxlLBgdHgGXKVZUcM3XJQ_WzRVWnpMng50Kvri9V-T7-_Nvm4_txZcPnzbri9ZBp_oWvHJed5b1SlLPrMeBowOKABQcgJDAOBVssN461_dCK6U81arTXA6Swoq8u-Eelu0evcM4ZzuZQw57m3-bZIN5-BPDaK7TL6O10KB0Bby5BeT0c8Eym30oDqfJRkxLMXVKSlUn6iQr8vo_6y4tOdb1qktpIQXwo-vsxnVtJzQhDqn2dfV43AeXIg6h6mslmGaCQ_-vwOVUSsbhbnpGzTFw8zDwWvDq_s539r8Jwx_DGqek</recordid><startdate>20230218</startdate><enddate>20230218</enddate><creator>Cao, Huimin</creator><creator>Zhou, Zhenyang</creator><creator>Wang, Cuiping</creator><creator>Sun, Hongwen</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-7834-0409</orcidid></search><sort><creationdate>20230218</creationdate><title>Adsorption of Phenanthrene on Multi-Walled Carbon Nanotubes in the Presence of Nonionic Surfactants</title><author>Cao, Huimin ; Zhou, Zhenyang ; Wang, Cuiping ; Sun, Hongwen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3278-3d7cd92a18760d1adef4ec30e3303c3356314051fadacc8859777d0972946f603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Adsorption</topic><topic>Bioavailability</topic><topic>Carbon</topic><topic>Equilibrium</topic><topic>Experiments</topic><topic>Hydrophobicity</topic><topic>Influence</topic><topic>Kinetics</topic><topic>Nanotechnology</topic><topic>Nanotubes</topic><topic>Nonionic surfactants</topic><topic>Organic chemicals</topic><topic>Phenanthrene</topic><topic>Pollutants</topic><topic>Surface active agents</topic><topic>Surfactants</topic><topic>Toxicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cao, Huimin</creatorcontrib><creatorcontrib>Zhou, Zhenyang</creatorcontrib><creatorcontrib>Wang, Cuiping</creatorcontrib><creatorcontrib>Sun, Hongwen</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>International journal of environmental research and public health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, Huimin</au><au>Zhou, Zhenyang</au><au>Wang, Cuiping</au><au>Sun, Hongwen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption of Phenanthrene on Multi-Walled Carbon Nanotubes in the Presence of Nonionic Surfactants</atitle><jtitle>International journal of environmental research and public health</jtitle><addtitle>Int J Environ Res Public Health</addtitle><date>2023-02-18</date><risdate>2023</risdate><volume>20</volume><issue>4</issue><spage>3648</spage><pages>3648-</pages><issn>1660-4601</issn><issn>1661-7827</issn><eissn>1660-4601</eissn><abstract>The bioavailability and mobility of phenanthrene (Phe) adsorbed by multi-walled carbon nanotubes (MWCNTs) may be substantially influenced by nonionic surfactants used both in the synthesis and dispersion of MWCNTs. The adsorption mechanisms of Phe adsorbed onto MWCNTs under the different nonionic surfactants Tween 80 (TW-80) and Triton X-100 (TX-100) in the aqueous phase were investigated in terms of changes in the MWCNTs' compositions and structures. The results showed that TW-80 and TX-100 were easily adsorbed onto MWCNTs. Phe adsorption data onto MWCNTs were better suited to the Langmuir equation than the Freundlich equation. Both TW-80 and TX-100 reduced the adsorption capacity of Phe onto MWCNTs. When TW-80 and TX-100 were added in the adsorption system, the saturated adsorption mass of Phe decreased from 35.97 mg/g to 27.10 and 29.79 mg/g, respectively, which can be attributed to the following three reasons. Firstly, the hydrophobic interactions between MWCNTs and Phe became weakened in the presence of nonionic surfactants. Secondly, the nonionic surfactants covered the adsorption sites of MWCNTs, which caused Phe adsorption to be reduced. Finally, nonionic surfactants can also promote the desorption of Phe from MWCNTs.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>36834341</pmid><doi>10.3390/ijerph20043648</doi><orcidid>https://orcid.org/0000-0001-7834-0409</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Adsorption Bioavailability Carbon Equilibrium Experiments Hydrophobicity Influence Kinetics Nanotechnology Nanotubes Nonionic surfactants Organic chemicals Phenanthrene Pollutants Surface active agents Surfactants Toxicity |
title | Adsorption of Phenanthrene on Multi-Walled Carbon Nanotubes in the Presence of Nonionic Surfactants |
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