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Facile and ultra-sensitive voltammetric electrodetection of Hg2+ in aqueous media using electrodeposited AuPtNPs/ITO
In this study, we have investigated the use of electrodeposited Au–Pt nanoparticles (AuPtNPs) on indium tin oxide (ITO) for the detection of Hg2+ heavy ions in water samples. The mechanism of AuPtNP electrocrystallization on ITO glass in an aqueous solution containing 0.5 mM HAuCl4 + 0.5 mM H2PtCl6...
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Published in: | Analytical methods 2021-06, Vol.13 (24), p.2688-2700 |
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creator | Mohiedin Bagheri Hariri Roozbeh Siavash Moakhar Payman Sharifi Abdar Zargarnezhad, Hossein Shone, Matthew Seyyed Alireza Rahmani Moradi, Nasrin Niksefat, Vahid Bahadori, Kasra Shayar Dolati, Abolghasem |
description | In this study, we have investigated the use of electrodeposited Au–Pt nanoparticles (AuPtNPs) on indium tin oxide (ITO) for the detection of Hg2+ heavy ions in water samples. The mechanism of AuPtNP electrocrystallization on ITO glass in an aqueous solution containing 0.5 mM HAuCl4 + 0.5 mM H2PtCl6 is described for the first time. The nucleation mechanism of monometallic AuNPs on ITO was found to be progressive; however, a transition from progressive to instantaneous was observed for bimetallic AuPtNPs at elevated overpotentials. The modified ITOs were then assessed for the electrodetection of Hg2+ in aqueous media. It was shown by differential pulse voltammetry (DPV) that the sensitivity of the constructed AuPtNPs/ITO electrode toward Hg2+ was about 2.08 μA nM−1. An approximate detection limit of 4.03 nM Hg2+ was achieved, which is below the permissible level of 30.00 nM Hg2+ in drinking water, according to the World Health Organization (WHO). Characterization of AuPt nanostructures was carried out by X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and different electrochemical techniques (cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance spectroscopy (EIS)). Our results indicate a good potential of a facile and robust electrochemical assembly for on-site detection of heavy metals in water samples. |
doi_str_mv | 10.1039/d1ay00361e |
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The mechanism of AuPtNP electrocrystallization on ITO glass in an aqueous solution containing 0.5 mM HAuCl4 + 0.5 mM H2PtCl6 is described for the first time. The nucleation mechanism of monometallic AuNPs on ITO was found to be progressive; however, a transition from progressive to instantaneous was observed for bimetallic AuPtNPs at elevated overpotentials. The modified ITOs were then assessed for the electrodetection of Hg2+ in aqueous media. It was shown by differential pulse voltammetry (DPV) that the sensitivity of the constructed AuPtNPs/ITO electrode toward Hg2+ was about 2.08 μA nM−1. An approximate detection limit of 4.03 nM Hg2+ was achieved, which is below the permissible level of 30.00 nM Hg2+ in drinking water, according to the World Health Organization (WHO). Characterization of AuPt nanostructures was carried out by X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and different electrochemical techniques (cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance spectroscopy (EIS)). Our results indicate a good potential of a facile and robust electrochemical assembly for on-site detection of heavy metals in water samples.</description><identifier>ISSN: 1759-9660</identifier><identifier>EISSN: 1759-9679</identifier><identifier>DOI: 10.1039/d1ay00361e</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Aqueous solutions ; Bimetals ; Diffraction patterns ; Drinking water ; Electrochemical impedance spectroscopy ; Electrochemistry ; Gold ; Heavy ions ; Heavy metals ; Indium tin oxides ; Mercury (metal) ; Nanoparticles ; Nucleation ; Scanning electron microscopy ; Spectroscopy ; Tin ; Voltammetry ; Water analysis ; Water sampling ; X-ray diffraction</subject><ispartof>Analytical methods, 2021-06, Vol.13 (24), p.2688-2700</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids></links><search><creatorcontrib>Mohiedin Bagheri Hariri</creatorcontrib><creatorcontrib>Roozbeh Siavash Moakhar</creatorcontrib><creatorcontrib>Payman Sharifi Abdar</creatorcontrib><creatorcontrib>Zargarnezhad, Hossein</creatorcontrib><creatorcontrib>Shone, Matthew</creatorcontrib><creatorcontrib>Seyyed Alireza Rahmani</creatorcontrib><creatorcontrib>Moradi, Nasrin</creatorcontrib><creatorcontrib>Niksefat, Vahid</creatorcontrib><creatorcontrib>Bahadori, Kasra Shayar</creatorcontrib><creatorcontrib>Dolati, Abolghasem</creatorcontrib><title>Facile and ultra-sensitive voltammetric electrodetection of Hg2+ in aqueous media using electrodeposited AuPtNPs/ITO</title><title>Analytical methods</title><description>In this study, we have investigated the use of electrodeposited Au–Pt nanoparticles (AuPtNPs) on indium tin oxide (ITO) for the detection of Hg2+ heavy ions in water samples. The mechanism of AuPtNP electrocrystallization on ITO glass in an aqueous solution containing 0.5 mM HAuCl4 + 0.5 mM H2PtCl6 is described for the first time. The nucleation mechanism of monometallic AuNPs on ITO was found to be progressive; however, a transition from progressive to instantaneous was observed for bimetallic AuPtNPs at elevated overpotentials. The modified ITOs were then assessed for the electrodetection of Hg2+ in aqueous media. It was shown by differential pulse voltammetry (DPV) that the sensitivity of the constructed AuPtNPs/ITO electrode toward Hg2+ was about 2.08 μA nM−1. An approximate detection limit of 4.03 nM Hg2+ was achieved, which is below the permissible level of 30.00 nM Hg2+ in drinking water, according to the World Health Organization (WHO). Characterization of AuPt nanostructures was carried out by X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and different electrochemical techniques (cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance spectroscopy (EIS)). Our results indicate a good potential of a facile and robust electrochemical assembly for on-site detection of heavy metals in water samples.</description><subject>Aqueous solutions</subject><subject>Bimetals</subject><subject>Diffraction patterns</subject><subject>Drinking water</subject><subject>Electrochemical impedance spectroscopy</subject><subject>Electrochemistry</subject><subject>Gold</subject><subject>Heavy ions</subject><subject>Heavy metals</subject><subject>Indium tin oxides</subject><subject>Mercury (metal)</subject><subject>Nanoparticles</subject><subject>Nucleation</subject><subject>Scanning electron microscopy</subject><subject>Spectroscopy</subject><subject>Tin</subject><subject>Voltammetry</subject><subject>Water analysis</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>2021</creationdate><recordtype>article</recordtype><recordid>eNpFjl1LwzAYhYMoOKc3_oKAl1KXNF_N5RjuA4bbxbweafN2ZLRNbZKB_96KolfnXDw85yD0SMkLJUzPLDWfhDBJ4QpNqBI601Lp678uyS26C-FMiNQjNUFxaSrXADadxamJg8kCdMFFdwF88U00bQtxcBWGBqo4eAtxTOc77Gu8PuXP2HXYfCTwKeAWrDM4Bded_vnejzqweJ728W0fZpvD7h7d1KYJ8PCbU_S-fD0s1tl2t9os5tusp1zGrNY0B64EMUoaoXJb58JabnWpKuBEFaXUouLyG6mB5qYsGKdjqUTBoajZFD39ePvBjxdDPJ59Grpx8pgLzjljhEr2BWSIXbk</recordid><startdate>20210628</startdate><enddate>20210628</enddate><creator>Mohiedin Bagheri Hariri</creator><creator>Roozbeh Siavash Moakhar</creator><creator>Payman Sharifi Abdar</creator><creator>Zargarnezhad, Hossein</creator><creator>Shone, Matthew</creator><creator>Seyyed Alireza Rahmani</creator><creator>Moradi, Nasrin</creator><creator>Niksefat, Vahid</creator><creator>Bahadori, Kasra Shayar</creator><creator>Dolati, Abolghasem</creator><general>Royal Society of Chemistry</general><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></search><sort><creationdate>20210628</creationdate><title>Facile and ultra-sensitive voltammetric electrodetection of Hg2+ in aqueous media using electrodeposited AuPtNPs/ITO</title><author>Mohiedin Bagheri Hariri ; Roozbeh Siavash Moakhar ; Payman Sharifi Abdar ; Zargarnezhad, Hossein ; Shone, Matthew ; Seyyed Alireza Rahmani ; Moradi, Nasrin ; Niksefat, Vahid ; Bahadori, Kasra Shayar ; Dolati, Abolghasem</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p146t-f912e4750a76a572df25dd4d9b7ce4078b695c464750fe12ab8341e12c584e8f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aqueous solutions</topic><topic>Bimetals</topic><topic>Diffraction patterns</topic><topic>Drinking water</topic><topic>Electrochemical impedance spectroscopy</topic><topic>Electrochemistry</topic><topic>Gold</topic><topic>Heavy ions</topic><topic>Heavy metals</topic><topic>Indium tin oxides</topic><topic>Mercury (metal)</topic><topic>Nanoparticles</topic><topic>Nucleation</topic><topic>Scanning electron microscopy</topic><topic>Spectroscopy</topic><topic>Tin</topic><topic>Voltammetry</topic><topic>Water analysis</topic><topic>Water sampling</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mohiedin Bagheri Hariri</creatorcontrib><creatorcontrib>Roozbeh Siavash Moakhar</creatorcontrib><creatorcontrib>Payman Sharifi Abdar</creatorcontrib><creatorcontrib>Zargarnezhad, Hossein</creatorcontrib><creatorcontrib>Shone, Matthew</creatorcontrib><creatorcontrib>Seyyed Alireza Rahmani</creatorcontrib><creatorcontrib>Moradi, Nasrin</creatorcontrib><creatorcontrib>Niksefat, Vahid</creatorcontrib><creatorcontrib>Bahadori, Kasra Shayar</creatorcontrib><creatorcontrib>Dolati, Abolghasem</creatorcontrib><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>Mohiedin Bagheri Hariri</au><au>Roozbeh Siavash Moakhar</au><au>Payman Sharifi Abdar</au><au>Zargarnezhad, Hossein</au><au>Shone, Matthew</au><au>Seyyed Alireza Rahmani</au><au>Moradi, Nasrin</au><au>Niksefat, Vahid</au><au>Bahadori, Kasra Shayar</au><au>Dolati, Abolghasem</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Facile and ultra-sensitive voltammetric electrodetection of Hg2+ in aqueous media using electrodeposited AuPtNPs/ITO</atitle><jtitle>Analytical methods</jtitle><date>2021-06-28</date><risdate>2021</risdate><volume>13</volume><issue>24</issue><spage>2688</spage><epage>2700</epage><pages>2688-2700</pages><issn>1759-9660</issn><eissn>1759-9679</eissn><abstract>In this study, we have investigated the use of electrodeposited Au–Pt nanoparticles (AuPtNPs) on indium tin oxide (ITO) for the detection of Hg2+ heavy ions in water samples. The mechanism of AuPtNP electrocrystallization on ITO glass in an aqueous solution containing 0.5 mM HAuCl4 + 0.5 mM H2PtCl6 is described for the first time. The nucleation mechanism of monometallic AuNPs on ITO was found to be progressive; however, a transition from progressive to instantaneous was observed for bimetallic AuPtNPs at elevated overpotentials. The modified ITOs were then assessed for the electrodetection of Hg2+ in aqueous media. It was shown by differential pulse voltammetry (DPV) that the sensitivity of the constructed AuPtNPs/ITO electrode toward Hg2+ was about 2.08 μA nM−1. An approximate detection limit of 4.03 nM Hg2+ was achieved, which is below the permissible level of 30.00 nM Hg2+ in drinking water, according to the World Health Organization (WHO). Characterization of AuPt nanostructures was carried out by X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and different electrochemical techniques (cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance spectroscopy (EIS)). Our results indicate a good potential of a facile and robust electrochemical assembly for on-site detection of heavy metals in water samples.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d1ay00361e</doi><tpages>13</tpages></addata></record> |
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subjects | Aqueous solutions Bimetals Diffraction patterns Drinking water Electrochemical impedance spectroscopy Electrochemistry Gold Heavy ions Heavy metals Indium tin oxides Mercury (metal) Nanoparticles Nucleation Scanning electron microscopy Spectroscopy Tin Voltammetry Water analysis Water sampling X-ray diffraction |
title | Facile and ultra-sensitive voltammetric electrodetection of Hg2+ in aqueous media using electrodeposited AuPtNPs/ITO |
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