Figure 4
From: A multifunctional azobenzene-based polymeric adsorbent for effective water remediation
The UV/vis spectra of (A) PEI@AZ/PEG in water shows a red shift compared with that of AZ-OH, suggesting π–π stacking of the AZ groups in water; and (B) PEI@AZ/PEG and AZ-OH in chloroform, where PEI@AZ/PEG shows no red shift when compared to AZ-OH, indicating no π–π stacking of AZ groups in chloroform.
