Use of LSPR Spectroscopy Biosensing for In Situ Identification of Arsenic from Bioleaching of Realgar by Acidithiobacillus ferrooxidans

Figure 1

(a) UV-Vis extinction spectra of prepared triangular silver NPs (black line) and Ag@Au core-shell NPs (red line). (b) and (c) TEM images of triangular silver NPs and Ag@Au core-shell NPs. (d) A scanning electron microscopy image of Ag@Au core-shell NPs.