Alcl3 6h2o

Myricetin, morin, and apigenin were purchased from TCI Development Co., Ltd. (Shanghai, China); 4-morpholineethanesulfonic acid (MES, >99.9%), glutathione, and all amino acids (AAs, >99.9%) were purchased from Aladdin Reagent. HAuCl₄·3H₂O, AlCl₃·6H₂O, and CuSO₄ were purchased from Beijing Chemical Factory (Beijing, China) and the purities of these were higher than 99%. All these chemicals were obtained from commercial suppliers and used without further purification. Distilled water (ρ = 18.2 MΩ·cm, 25 °C) was obtained from a water purification system (Millipore Milli-Q), while the 10 mM MES-NaOH buffer (pH = 6.0) was prepared with 10 mM MES and NaOH in such water.

Sepiolite (Sep) was obtained from Sigma-Aldrich (Shanghai) Trading Co., Ltd. The pattern of XRD and the chemical composition are given in Figure 1 and Table 1, respectively. AlCl₃ 6H₂O (analytically pure) was purchased from Beijing Chemical Plant. Indigo (Id, purity of 98%) was purchased from Shanghai Macklin Biochemical Technology Co., Ltd.