An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples
We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg( ii ) as a water pollutant. Field emission scanning electron microscopy, high resolution trans...
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| Veröffentlicht in: | Analytical methods 2018-01, Vol.1 (21), p.2526-2535 |
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| creator | Abdullah, Ibrahim H Ahmed, Nashaat Mohamed, Mona A Ragab, Fawzy M. A Abdel-Wareth, Marwa T. A Allam, Nageh K |
| description | We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant. Field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, FTIR spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the morphological, structural, and electrochemical properties of the fabricated modifier. Square wave anodic stripping voltammetry was applied for the analytical measurements. The parameters influencing the peak current response were studied and optimized. The linear response of detection toward Hg(
ii
) was found to be in the range of 2.5 × 10
−10
-5 × 10
−6
M with a high regression coefficient (0.999). The limit of detection was found to be 4 × 10
−11
M. The investigated sensing platform was tested for Hg(
ii
) simultaneously in the presence of Cu(
ii
) and Mn(
ii
) and proved to have high sensitivity, selectivity, and reproducibility. Finally, the modified electrode was used for the trace level detection of Hg(
ii
) in real environmental water samples, showing promising results.
We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant. |
| doi_str_mv | 10.1039/c8ay00618k |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_rsc_p</sourceid><recordid>TN_cdi_proquest_journals_2048146679</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2048146679</sourcerecordid><originalsourceid>FETCH-LOGICAL-c385t-d834e5d14b0b2de5c861d5c402b0c729e54ab472a29220fa0af6b4ef15faaa0a3</originalsourceid><addsrcrecordid>eNp9kM1LAzEUxIMoWKsX70LEm7CaZJP9OJZSP7DgRQ-elmzyItvuJmuyrfS_N22l3jy9GebHPBiELim5oyQt71UhN4RktFgeoRHNRZmUWV4eH3RGTtFZCIvIlGlGR2g5sRjsZ2MBPGhspXXKdb0LzQDYOI8D2KibNWBpdXQtqJ3TMGyVs9gZ3IFXK7_BzbZs3XhnO7CDbPG3HCB2yK5vIZyjEyPbABe_d4zeH2Zv06dk_vr4PJ3ME5UWYkh0kXIQmvKa1EyDUEVGtVCcsJqonJUguKx5ziQrGSNGEmmymoOhwkgZXTpGN_ve3ruvFYShWriVt_FlxQgvKM_iJpG63VPKuxA8mKr3TSf9pqKk2o5ZTYvJx27Mlwhf7WEf1IH7Gzvm1__lVa9N-gMhsn9Z</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2048146679</pqid></control><display><type>article</type><title>An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Abdullah, Ibrahim H ; Ahmed, Nashaat ; Mohamed, Mona A ; Ragab, Fawzy M. A ; Abdel-Wareth, Marwa T. A ; Allam, Nageh K</creator><creatorcontrib>Abdullah, Ibrahim H ; Ahmed, Nashaat ; Mohamed, Mona A ; Ragab, Fawzy M. A ; Abdel-Wareth, Marwa T. A ; Allam, Nageh K</creatorcontrib><description>We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant. Field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, FTIR spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the morphological, structural, and electrochemical properties of the fabricated modifier. Square wave anodic stripping voltammetry was applied for the analytical measurements. The parameters influencing the peak current response were studied and optimized. The linear response of detection toward Hg(
ii
) was found to be in the range of 2.5 × 10
−10
-5 × 10
−6
M with a high regression coefficient (0.999). The limit of detection was found to be 4 × 10
−11
M. The investigated sensing platform was tested for Hg(
ii
) simultaneously in the presence of Cu(
ii
) and Mn(
ii
) and proved to have high sensitivity, selectivity, and reproducibility. Finally, the modified electrode was used for the trace level detection of Hg(
ii
) in real environmental water samples, showing promising results.
We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant.</description><identifier>ISSN: 1759-9660</identifier><identifier>EISSN: 1759-9679</identifier><identifier>DOI: 10.1039/c8ay00618k</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Absorptivity ; Air pollution ; Anodic stripping ; Copper ; Electrochemical analysis ; Electrochemical impedance spectroscopy ; Electrochemistry ; Field emission microscopy ; Fourier transforms ; Manganese ; Mathematical analysis ; Mercury ; Mercury (metal) ; Mercury compounds ; Nanocomposites ; Nanotechnology ; Nanotubes ; Pollutants ; Regression analysis ; Regression coefficients ; Reproducibility ; Scanning electron microscopy ; Spectroscopy ; Spectrum analysis ; Transmission electron microscopy ; Voltammetry ; Water analysis ; Water pollution ; Water sampling ; X-ray diffraction</subject><ispartof>Analytical methods, 2018-01, Vol.1 (21), p.2526-2535</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-d834e5d14b0b2de5c861d5c402b0c729e54ab472a29220fa0af6b4ef15faaa0a3</citedby><cites>FETCH-LOGICAL-c385t-d834e5d14b0b2de5c861d5c402b0c729e54ab472a29220fa0af6b4ef15faaa0a3</cites><orcidid>0000-0003-2721-5725 ; 0000-0001-9458-3507</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Abdullah, Ibrahim H</creatorcontrib><creatorcontrib>Ahmed, Nashaat</creatorcontrib><creatorcontrib>Mohamed, Mona A</creatorcontrib><creatorcontrib>Ragab, Fawzy M. A</creatorcontrib><creatorcontrib>Abdel-Wareth, Marwa T. A</creatorcontrib><creatorcontrib>Allam, Nageh K</creatorcontrib><title>An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples</title><title>Analytical methods</title><description>We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant. Field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, FTIR spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the morphological, structural, and electrochemical properties of the fabricated modifier. Square wave anodic stripping voltammetry was applied for the analytical measurements. The parameters influencing the peak current response were studied and optimized. The linear response of detection toward Hg(
ii
) was found to be in the range of 2.5 × 10
−10
-5 × 10
−6
M with a high regression coefficient (0.999). The limit of detection was found to be 4 × 10
−11
M. The investigated sensing platform was tested for Hg(
ii
) simultaneously in the presence of Cu(
ii
) and Mn(
ii
) and proved to have high sensitivity, selectivity, and reproducibility. Finally, the modified electrode was used for the trace level detection of Hg(
ii
) in real environmental water samples, showing promising results.
We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant.</description><subject>Absorptivity</subject><subject>Air pollution</subject><subject>Anodic stripping</subject><subject>Copper</subject><subject>Electrochemical analysis</subject><subject>Electrochemical impedance spectroscopy</subject><subject>Electrochemistry</subject><subject>Field emission microscopy</subject><subject>Fourier transforms</subject><subject>Manganese</subject><subject>Mathematical analysis</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Mercury compounds</subject><subject>Nanocomposites</subject><subject>Nanotechnology</subject><subject>Nanotubes</subject><subject>Pollutants</subject><subject>Regression analysis</subject><subject>Regression coefficients</subject><subject>Reproducibility</subject><subject>Scanning electron microscopy</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><subject>Transmission electron microscopy</subject><subject>Voltammetry</subject><subject>Water analysis</subject><subject>Water pollution</subject><subject>Water sampling</subject><subject>X-ray diffraction</subject><issn>1759-9660</issn><issn>1759-9679</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kM1LAzEUxIMoWKsX70LEm7CaZJP9OJZSP7DgRQ-elmzyItvuJmuyrfS_N22l3jy9GebHPBiELim5oyQt71UhN4RktFgeoRHNRZmUWV4eH3RGTtFZCIvIlGlGR2g5sRjsZ2MBPGhspXXKdb0LzQDYOI8D2KibNWBpdXQtqJ3TMGyVs9gZ3IFXK7_BzbZs3XhnO7CDbPG3HCB2yK5vIZyjEyPbABe_d4zeH2Zv06dk_vr4PJ3ME5UWYkh0kXIQmvKa1EyDUEVGtVCcsJqonJUguKx5ziQrGSNGEmmymoOhwkgZXTpGN_ve3ruvFYShWriVt_FlxQgvKM_iJpG63VPKuxA8mKr3TSf9pqKk2o5ZTYvJx27Mlwhf7WEf1IH7Gzvm1__lVa9N-gMhsn9Z</recordid><startdate>20180101</startdate><enddate>20180101</enddate><creator>Abdullah, Ibrahim H</creator><creator>Ahmed, Nashaat</creator><creator>Mohamed, Mona A</creator><creator>Ragab, Fawzy M. A</creator><creator>Abdel-Wareth, Marwa T. A</creator><creator>Allam, Nageh K</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SE</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>H8G</scope><scope>JG9</scope><scope>L7M</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0003-2721-5725</orcidid><orcidid>https://orcid.org/0000-0001-9458-3507</orcidid></search><sort><creationdate>20180101</creationdate><title>An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples</title><author>Abdullah, Ibrahim H ; Ahmed, Nashaat ; Mohamed, Mona A ; Ragab, Fawzy M. A ; Abdel-Wareth, Marwa T. A ; Allam, Nageh K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-d834e5d14b0b2de5c861d5c402b0c729e54ab472a29220fa0af6b4ef15faaa0a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Absorptivity</topic><topic>Air pollution</topic><topic>Anodic stripping</topic><topic>Copper</topic><topic>Electrochemical analysis</topic><topic>Electrochemical impedance spectroscopy</topic><topic>Electrochemistry</topic><topic>Field emission microscopy</topic><topic>Fourier transforms</topic><topic>Manganese</topic><topic>Mathematical analysis</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Mercury compounds</topic><topic>Nanocomposites</topic><topic>Nanotechnology</topic><topic>Nanotubes</topic><topic>Pollutants</topic><topic>Regression analysis</topic><topic>Regression coefficients</topic><topic>Reproducibility</topic><topic>Scanning electron microscopy</topic><topic>Spectroscopy</topic><topic>Spectrum analysis</topic><topic>Transmission electron microscopy</topic><topic>Voltammetry</topic><topic>Water analysis</topic><topic>Water pollution</topic><topic>Water sampling</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abdullah, Ibrahim H</creatorcontrib><creatorcontrib>Ahmed, Nashaat</creatorcontrib><creatorcontrib>Mohamed, Mona A</creatorcontrib><creatorcontrib>Ragab, Fawzy M. A</creatorcontrib><creatorcontrib>Abdel-Wareth, Marwa T. A</creatorcontrib><creatorcontrib>Allam, Nageh K</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Analytical methods</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abdullah, Ibrahim H</au><au>Ahmed, Nashaat</au><au>Mohamed, Mona A</au><au>Ragab, Fawzy M. A</au><au>Abdel-Wareth, Marwa T. A</au><au>Allam, Nageh K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples</atitle><jtitle>Analytical methods</jtitle><date>2018-01-01</date><risdate>2018</risdate><volume>1</volume><issue>21</issue><spage>2526</spage><epage>2535</epage><pages>2526-2535</pages><issn>1759-9660</issn><eissn>1759-9679</eissn><abstract>We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant. Field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, FTIR spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the morphological, structural, and electrochemical properties of the fabricated modifier. Square wave anodic stripping voltammetry was applied for the analytical measurements. The parameters influencing the peak current response were studied and optimized. The linear response of detection toward Hg(
ii
) was found to be in the range of 2.5 × 10
−10
-5 × 10
−6
M with a high regression coefficient (0.999). The limit of detection was found to be 4 × 10
−11
M. The investigated sensing platform was tested for Hg(
ii
) simultaneously in the presence of Cu(
ii
) and Mn(
ii
) and proved to have high sensitivity, selectivity, and reproducibility. Finally, the modified electrode was used for the trace level detection of Hg(
ii
) in real environmental water samples, showing promising results.
We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(
ii
) as a water pollutant.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c8ay00618k</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-2721-5725</orcidid><orcidid>https://orcid.org/0000-0001-9458-3507</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Absorptivity Air pollution Anodic stripping Copper Electrochemical analysis Electrochemical impedance spectroscopy Electrochemistry Field emission microscopy Fourier transforms Manganese Mathematical analysis Mercury Mercury (metal) Mercury compounds Nanocomposites Nanotechnology Nanotubes Pollutants Regression analysis Regression coefficients Reproducibility Scanning electron microscopy Spectroscopy Spectrum analysis Transmission electron microscopy Voltammetry Water analysis Water pollution Water sampling X-ray diffraction |
| title | An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples |
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