Alginate stabilized silver nanocube-Rh6G composite as a highly selective mercury sensor in aqueous solution.
Alginate-stabilized silver nanocubes are synthesized via a reduction method and are characterized by UV-Vis and fluorescence spectroscopies, SEM, AFM and HRTEM analyses. A silver nanocubes (Ag NCbs) based sensor for detecting Hg2+ ions in aqueous solution has been developed using Rh6G as an external spectroscopic probe. Using this system, Hg2+ ions (as low as 1×10(-10) mol L(-1)) are recognized in aqueous media via a colorimetric method with very high selectivity and sensitivity over other metal ions namely Fe2+, Zn2+, Pb2+, Cu2+, Sn2+, Cd2+, Ni2+, and Co2+.
School of Chemistry, Madurai Kamaraj University, Madurai, 625021, Tamil Nadu, India.
Vairaperumal
V
Tharmaraj
Kasi
K
Pitchumani
D000464:Alginates / Q000737:chemistry*; D005079:Excipients / Q000737:chemistry; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
D000464:Alginates; D005079:Excipients; D006603:Hexuronic Acids; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water; D012834:Silver; D020723:Glucuronic Acid; D008628:Mercury