Figure 6
From: Chromium removal from aqueous solution by a PEI-silica nanocomposite
(a)–(c) Cr 2p XPS spectra and (d)–(h) N 1 s XPS spectra of the PEI-silica nanoparticle at pH 2–4 after Cr adsorption.
Figure 6 | Scientific Reports
From: Chromium removal from aqueous solution by a PEI-silica nanocomposite
(a)–(c) Cr 2p XPS spectra and (d)–(h) N 1 s XPS spectra of the PEI-silica nanoparticle at pH 2–4 after Cr adsorption.
