PREPARATION AND CHARACTERIZATION OF DEFECTIVE Zr-BASED METAL-ORGANIC FRAMEWORKS AND THEIR ADSORPTION PROPERTIES FOR TETRACYCLINE

HUANG Jiming; LIU Runqing; WU Sizhan; QIN Hangdao; CHEN Jing

doi:10.13205/j.hjgc.202403004

Volume 42 Issue 3

Mar. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(3): 33-40

HUANG Jiming, LIU Runqing, WU Sizhan, QIN Hangdao, CHEN Jing. PREPARATION AND CHARACTERIZATION OF DEFECTIVE Zr-BASED METAL-ORGANIC FRAMEWORKS AND THEIR ADSORPTION PROPERTIES FOR TETRACYCLINE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 33-40. doi: 10.13205/j.hjgc.202403004

Citation:

HUANG Jiming, LIU Runqing, WU Sizhan, QIN Hangdao, CHEN Jing. PREPARATION AND CHARACTERIZATION OF DEFECTIVE Zr-BASED METAL-ORGANIC FRAMEWORKS AND THEIR ADSORPTION PROPERTIES FOR TETRACYCLINE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 33-40. doi: 10.13205/j.hjgc.202403004

Citation:

HUANG Jiming, LIU Runqing, WU Sizhan, QIN Hangdao, CHEN Jing. PREPARATION AND CHARACTERIZATION OF DEFECTIVE Zr-BASED METAL-ORGANIC FRAMEWORKS AND THEIR ADSORPTION PROPERTIES FOR TETRACYCLINE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 33-40. doi: 10.13205/j.hjgc.202403004

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PREPARATION AND CHARACTERIZATION OF DEFECTIVE Zr-BASED METAL-ORGANIC FRAMEWORKS AND THEIR ADSORPTION PROPERTIES FOR TETRACYCLINE

doi: 10.13205/j.hjgc.202403004

School of Material and Chemical Engineering, Tongren Unversity, Tongren 554300, China

Received Date: 2022-11-07
Available Online: 2024-05-31

Abstract

Abstract

Adsorption has the potential to be broadly applied in the field of sewage purification due to advantages such as low costs, less energy consumption, ease of operation and environmental friendliness. In this work, Zr-based metal-organic frameworks (UiO-66-NH₂) with defects were successfully prepared by a facile solvothermal method, which was used to removal tetracycline from wastewater. Defective UiO-66-NH₂ was characterized by X-ray diffraction (XRD), field emission electron microscope (FESEM), Fourier transform infrared (FT-IR), nitrogen adsorption-desorption and X-ray photoelectron spectroscopy. In order to achieve optimum conditions of tetracycline from aqueous solutions,based on single-factor tests, response surface methodology (RSM) and Box-Behnken design (BBD) were employed to examine the interaction of factors and optimize the adsorption operation parameters, including adsorbent dose, the initial concentration of tetracyclines, pH and contact time. The optimum conditions of maximum adsorption (71.85 mg/g) were found as follows: 10 mg of adsorbent dosage, initial tetracycline concentration of 27 mg/L, pH=3.8 and adsorption time of 3 h. In addition, regeneration experiments showed that the adsorption efficiency of tetracycline after five adsorption-desorption cycles with good uptake efficiency (68.33 mg/g) and UiO-66-NH₂ exhibited quite a good cyclic stability.
- metal-organic frameworks,
- defects,
- adsorption,
- response surface methodology,
- tetracycline

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References(20)

References

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