Selective colorimetric sensing of toxic metal cations by green synthesized silver nanoparticles over a wide pH range

Explicit detection of iron as Fe2+ and Fe3+ in the biological and environment systems by simple materials and methods is crucial. In this study, green synthesized silver nanoparticles (AgNps) capable...

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Novel nanostructured Fe–Cu–Al trimetal oxide for enhanced antimony(V) removal: synthesis, characterization and performance

Water Science & Technology ◽

10.2166/wst.2019.198 ◽

2019 ◽

Vol 79 (10) ◽

pp. 1995-2004

Author(s):

Jianyan Wang ◽

Jing Chen ◽

Qiumei Li ◽

Gaosheng Zhang

Keyword(s):

Toxic Metal ◽

Point Of Zero Charge ◽

Precipitation Method ◽

Hydroxyl Groups ◽

Adverse Health Effects ◽

Ion Exchange Reaction ◽

Wide Ph Range ◽

And Performance ◽

Ph Range ◽

Co Precipitation

Abstract Given the adverse health effects of antimony (Sb), there is an increased focus on developing methods to remove this toxic metal from contaminated water bodies. To effectively remove Sb(V), a new nanostructured Fe–Cu–Al trimetal oxide was fabricated using co-precipitation method at ambient temperature. The Fe–Cu–Al trimetal oxide was very effective at removing Sb(V) from water; it had a maximal adsorption capacity of 169.1 mg/g at pH 7.0, a capacity that was competitive with most other reported adsorbents. The obtained amorphous oxide had a high pH point of zero charge (pHpzc = 8.8) and good adsorption Sb(V) efficiency over a wide pH range (4.0–8.0). Sb(V) uptake was achieved mainly through an ion-exchange reaction between Sb(V) ions and hydroxyl groups on the surface of the oxide. Given its good removal performance, high selectivity, and simple synthesis, this novel Fe–Cu–Al trimetal oxide offers a promising alternate for removing antimony contamination from aquatic environments.

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Bio-functionalized silver nanoparticles for selective colorimetric sensing of toxic metal ions and antimicrobial studies

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy ◽

10.1016/j.saa.2014.03.020 ◽

2014 ◽

Vol 129 ◽

pp. 35-42 ◽

Cited By ~ 31

Author(s):

V. Vinod Kumar ◽

S. Anbarasan ◽

Lawrence Rene Christena ◽

Nagarajan SaiSubramanian ◽

Savarimuthu Philip Anthony

Keyword(s):

Silver Nanoparticles ◽

Metal Ions ◽

Toxic Metal ◽

Colorimetric Sensing ◽

Toxic Metal Ions ◽

Antimicrobial Studies

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Colorimetric sensing of Fe3+ and Hg2+ and photocatalytic activity of green synthesized silver nanoparticles from the leaf extract of Sonchus arvensis L.

New Journal of Chemistry ◽

10.1039/c9nj01338e ◽

2019 ◽

Vol 43 (46) ◽

pp. 18175-18183 ◽

Cited By ~ 4

Author(s):

Sandip Kumar Chandraker ◽

Mithun Kumar Ghosh ◽

Mishri Lal ◽

Tanmay Kumar Ghorai ◽

Ravindra Shukla

Keyword(s):

Silver Nanoparticles ◽

Photocatalytic Activity ◽

Green Synthesis ◽

Leaf Extract ◽

Colorimetric Sensing ◽

Sonchus Arvensis ◽

Green Synthesized Silver Nanoparticles

In the present study, an eco-friendly method was reported for the green synthesis of silver nanoparticles (AgNPs) using Sonchus arvensis (SA) leaf extract.

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