Colorimetric Detection of Sulfide Anions via Redox-Modulated Surface Chemistry and Morphology of Au-Hg Nanorods

Figure 3

UV-vis absorption spectra of (i) as-prepared AuNRs, (ii) Au-HgNRs-I, (iii) Au-HgNRs-II, and (iv) Au-HgNRs-III.