Figure 6 | Scientific Reports

Figure 6

From: A novel method of rapid detection for heavy metal copper ion via a specific copper chelator bathocuproinedisulfonic acid disodium salt

Figure 6

Preparation and characterization of BCS-AgNPs. (A) Schematic illustration of Cu+ induced colorimetric responses of the BCS-AgNPs (created with Microsoft PowerPoint 2010). (B) FTIR spectra of BCS, AgNPs and BCS-AgNPs. TEM images of AgNPs (C), BCS-AgNPs (D) and Cu-BCS-AgNPs (E). Schematic diagram of the particle size distribution of AgNPs (F), BCS-AgNPs (G) and Cu-BCS-AgNPs (H). (I) Absorption spectra of AgNPs, BCS-AgNPs and Cu-BCS-AgNPs. (J) The effect of the concentration ratio of AgNPs to BCS (1:1, 1:2 and 2:1) on the determination of different concentrations of Cu+. (K) The effect of time on the determination of 0.5 mg/L Cu+ binding to BCS-AgNPs.

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