ABSTRACT
For the first time, the red brick obtained from the generation of construction waste was used as raw material to characterize the material by XRD, BET, and SEM, and to study the microstructure of the material. The tetracycline hydrochloride solution was used as simulated wastewater to study the adsorption and degradation ability of the material. The effects of particle size, loading amount, pH, temperature, adsorption kinetics, and isotherm on the removal of tetracycline hydrochloride were studied, and the adsorption mechanism was investigated by Fourier transform infrared (FT-IR) spectroscopy. The results showed that the material had an excellent absorption effect on tetracycline hydrochloride, and the best dosage was 3 g. The material had a strong removal effect for tetracycline hydrochloride in a wide pH range, and the highest absorption rate was 358.3021 mg·g-1. Combined with the adsorption kinetics results, the pseudo-second-order model can better describe the adsorption process. The adsorption and degradation process of tetracycline hydrochloride is consistent with the Freundlich isotherm model. This study has practical application value for resource utilization of construction waste and pollution control of antibiotics in water.
