Fig. 1. Molecular structure of anthraquinone (AQ), vitamin C (VC), and vitamin C anion (VCA^-)

Fig. 2. (a) CIDEP spectra of AQ and AQ+VC in EG/H₂O homogeneous solutions, delay time t_d = 0.6 µs;(b) The reaction dynamic of AQ+VC in EG/H₂O homogeneous solution

Fig. 3. Surface tension versus lg[TX-100] of TX-100 in EG-H₂O (9/1, v/v) micelle solution when the temperature is 25 ^oC

Fig. 4. In EG/H₂O/TX-100 micelle solution: CIDEP spectrum of AQ+VC, the delay time t_d = 0.6 µs (a); Plot of I_[EG-H•]0 / I_[EG-H•] versus c_[VC] (b); Transient absorption spectra of AQ, the delay times are 0.5, 5.0, 20.0, 50.0 µs, respectively (c); The decay kinetics curve corresponding to the 390 nm absorption peak in the transient absorption spectra of AQ (d)

Fig. 5. (a) The molecular structures of the four surfactants. In aqueous solution, AOT and SDS are anions, TX-100 is a neutral molecule, and CTAB is an cation; (b) Schematic diagram of molecular diffusion collision of AQ+VC in different micelle solutions