An Organic Acid-induced Synthesis and Characterization of Selenium
Nanoparticles
Figure 2
(A) Effect of sodium selenosulphate concentration on the UV-visible
absorption spectra of the selenium sols produced by the reaction of
sodium selenosulphate with mol dm−3 (a) acetic acid,
(b) oxalic acid, and (c) gallic acid, at a fixed concentration of PVA
(0.05%). (B) Effect of acid concentration, (a) acetic acid, (b) oxalic
acid, and (c) gallic acid, on the absorption spectra of the selenium
sols produced by reaction with mol dm−3 sodium
selenosulphate, in the presence of 0.05% PVA. (C) Effect of PVA
concentration on absorption spectra of the selenium sol produced by the
reaction of mol dm−3 sodium
selenosulphate with 5.0 × 10−3
mol dm−3 (a) acetic acid, (b) oxalic acid, and
(c) gallic acid.
