Rapid preparation of HKUST-1 at room temperature and its adsorption performance of toluene
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O63

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The National Natural Science Foundation of China (21706031)

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    Abstract:

    By using copper nitrate and trimesic acid as raw materials, a metal organic framework material HKUST-1 is rapidly prepared by the hydrotalcite method at room temperature (25 ℃) within ten seconds, and is characterized by XRD, SEM and N2 adsorption. The adsorption isotherms, kinetics and adsorption-desorption cycle performance of toluene on the HKUST-1 are measured. The results show that the addition of hydrotalcite enables rapid synthesis of HKUST-1 within ten seconds at room temperature. The BET surface area of HKUST-1 is 2170.7 m2/g and total pore volume is 0.97 cm3/g. The saturated adsorption capacity of toluene on the material at 25 ℃ reaches 6.67 mmol/g. Under low relative partial pressure (p/p0≈0.02), the toluene adsorption capacity on the HKUST-1 is about 10 times higher than other materials. After five adsorption-desorption cycles, the toluene saturated adsorption capacity on the material is almost unchanged, and it has good regeneration performance.

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History
  • Received:November 22,2020
  • Revised:January 07,2021
  • Adopted:January 22,2021
  • Online: May 08,2021
  • Published:
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