Figure 2
From: A multifunctional azobenzene-based polymeric adsorbent for effective water remediation
Fluorescence intensities of water samples: (A) PEG in SiO2@PEI@AZ/PEG adsorbent can speed up the adsorption of pyrene; (B) Residual fluorescence intensities of water samples after adsorption with different doses of SiO2@PEI@AZ/PEG; The pyrene clean-up efficiency is not influenced either by acidic conditions (pH 5.4, acetate buffer) (C) or by anionic rose bengal (D).
Conditions: [pyrene] = 137 ppb; adsorption for 3 d in buffer unless stated otherwise; λex = 335 nm. The measurement errors at very low pyrene concentration (ca. 0.1 ppb) are within 50%.
