LIWei,GUORongcheng,WANGHe,et al.Preparation of MOFs-GO Aerogel and Its Adsorption Effect on Antibiotics[J].China Water & Wastewater,2026,42(7):78-85.
Preparation of MOFs-GO Aerogel and Its Adsorption Effect on Antibiotics
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第7期
Page:
78-85
Column:
Date of publication:
2026-04-01
- Keywords:
- metal-organic framework; graphene oxide; ciprofloxacin; tetracycline; adsorption
- Abstract:
- To enhance the stability of degrading antibiotic organic pollutants in water, macroscopic metal-organic frameworks (MOFs) aerogel, ZIF-8/GO, was synthesized via an in-situ method using zeolitic imidazolate framework-8 (ZIF-8) and graphene oxide (GO). The physicochemical properties of the ZIF-8/GO aerogel were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and gas adsorption analyzer. The results showed that ZIF-8/GO retained the stable crystal structures of both GO and ZIF-8 monomers. The combination of the two materials resulted in high porosity and excellent adsorption performance. Under optimal conditions—an adsorption time of 12 hours, a temperature of 40 ℃, a pH of 6, and an initial pollutant concentration of 80 mg/L—ZIF-8/GO achieved maximum adsorption capacities of 160.26 mg/g for ciprofloxacin and 173.86 mg/g for tetracycline. The adsorption process followed the pseudo-second-order kinetic (PSO) model and the Langmuir isotherm model, indicating monolayer adsorption. After five adsorption-desorption cycles, the adsorption capacity for antibiotics remained above 100 mg/g, demonstrating that the ZIF-8/GO composite aerogel possessed high adsorption capacity and good recyclability.
Last Update:
2026-04-01