In-Situ SERS Detection of Hg²⁺/Cd²⁺ and Congo Red Adsorption Using Spiral CNTs/Brass Nails.

ABSTRACT: Brass spiral nails were functionalized with CoFe₂O₄ nanoparticles and utilized as a substrate for the growth of extremely long CNTs with helical structures and diameters smaller than 20 nm. Different methods were used to characterize the grown CNTs' structures and morphologies. The characteristic Raman peaks of CNTs were amplified four times after being uploaded on the spiral nail, making the substrates for surface-enhanced Raman spectroscopy (SERS) more sensitive. To detect Hg²⁺ and Cd²⁺ at concentrations ranging from 1 to 1000 ppb, a CNT/spiral brass nail was used as a SERS substrate. The proposed sensor demonstrated high sensitivity and selectivity between these heavy metal ions. As a result, the proposed CNTs/spiral brass sensor can be an eff

SUBMITTER: Shaban M 

PROVIDER: S-EPMC9653861 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature