fig1
![Differential removal of tetracycline hydrochloride and quinolone antibiotics by calcined and uncalcined layered double hydroxides](https://image.oaes.cc/f7b7137e-d529-40fd-908f-86797d9b4a0e/5541.fig.1.jpg)
Figure 1. XRD patterns of (A) LDH, LDO; (B) before and after adsorption of LDH on TCH and OFX; (C) LDH, before and after adsorption of LDO on TCH and OFX; (D) LDH, LDO, before and after adsorption of LDO on TCH at the fourth and fifth times. LDH: Layered double hydroxide; LDO: layered double hydroxide; OFX: ofloxacin; TCH: tetracycline hydrochloride.