Azo-chromophore based on functionalized silica nanotubes for enhanced identification of Pd(II) ions in e-residues
Source abstract
Abstract
A bootstrap to build a novel solid chemical sensor was used functionalized by silica nanotubes (F-SNTs). This novel nanosized sensor has been developed to be immobilized directly on the F-SNTs with the new azo-chromophorous (z)-2-(2,4-dihydroxyphenyl)-terephthalic acid (HPDTP) using the two carboxylic acid groups. In the fluorescent technique detection range 5–825 ppb was achieved for Pd(II) ions, with linear correlation values of 0.9969. The new nanosized sensor has a high sensitivity for Pd(II) ions up to 28.8 ppb at extremely low concentration. This nanosized sensor was evaluated for its use as an adsorber. The sensor (HPDTP) has a fast detection feature for the removal without preconcentration of Pd(II) ions. This nanosized sensor also exhibits an effective Pd(II) identification in e-residues and preferential recovery.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Analytical chemistry methods development · Extraction and Separation Processes · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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