期刊
RSC ADVANCES
卷 6, 期 77, 页码 73741-73747出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra11684a
关键词
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资金
- National Nature Science Foundation of China [2014FB129, 51104075, 51364023, 31160146]
In this work, highly porous MIL-101 materials using hydrochloric acid (HCl) or hydrofluoric acid (HF) as a mineralizer were synthesized. The products were characterized with X-ray diffraction, scanning electron microscopy, thermal gravimetric analysis, and N2 sorption analysis. The results proved that the mineralizers had an obvious effect on the microstructures and morphologies of MIL-101, and MIL-101( HCl) showed remarkable superiority in a higher specific surface area, smaller particle size and higher crystallinity to the HF counterpart. These materials were then used to adsorb and remove the oxytetracycline (OTC) antibiotics from a water solution and an effective fast adsorption of OTC in aqueous solution was observed in the adsorptive kinetics. Compared with MIL-101(HF), a higher adsorption capacity on the MIL-101(HCl) was obtained, which was probably attributed to the higher specific surface area for the MIL-101(HCl). The adsorption mechanism might be greatly ascribed to pi-pi interaction, and acid-alkaline interaction between the oxytetracycline molecule and the adsorbent.
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