Fig. 4: Study on the vapochromic response in NH₃ adsorption.
From: Photothermal-assisted NH3 release in a bipyridinium-functionalized metal-organic framework adsorbent
a ESR spectra of Zn-Bipy pre- and post-NH3 adsorption. Insert: photographs of Zn-Bipy pre- and post-NH3 adsorption. b Solid UV–Vis absorption spectra of Zn-Bipy pre- and post-NH3 adsorption. c Raman spectra of Zn-Bipy pre- and post-NH3 adsorption. d N 1s core-level spectra of Zn-Bipy pre- and post-NH3 adsorption. e O 1s core-level spectra of Zn-Bipy pre- and post-NH3 adsorption. f Zn 2p core-level spectra of Zn-Bipy pre- and post-NH3 adsorption.
