Detection of toxic metal ions Pb2+ in water using SiO2@Au core-shell nanostructures: A simple technique for water quality monitoring
| Title | Detection of toxic metal ions Pb2+ in water using SiO2@Au core-shell nanostructures: A simple technique for water quality monitoring |
| Publication Type | Journal Article |
| Year of Publication | 2019 |
| Authors | Daware, K, Kasture, M, Kalubarme, R, Shinde, R, Patil, K, Suzuki, N, Terashima, C, Gosavi, S, Fujishim, A |
| Journal | Chemical Physics Letters |
| Volume | 732 |
| Date Published | OCT |
| Type of Article | Article |
| Abstract | The present paper demonstrates a development of simple, sensitive and selective optical probe for detection of Pb2+ ions in water using monodispersed silica-gold core-shell nanostructures (SiO2@Au NSs). Structural and elemental analysis confirms the phase purity of nanostructures. The SPR studies for SiO2 @Au NSs reveals, linear dynamic range for Pb2+ ions detection, in the concentration range of 100 ppb to 2 ppm, with detection limit of 100 ppb, which is 5 times higher than AuNPs. Cross sensitivity study confirm its selectivity towards Pb2+ ions over other metal ions. XPS analysis shows the interaction of Pb2+ ions with core-shell NPs. |
| DOI | 10.1016/j.cplett.2019.136635 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 1.901 |
Divison category:
Physical and Materials Chemistry
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