Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (3): 20210701.doi: 10.7503/cjcu20210701

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Design and Construction of UiO-66-NH2/wood Composite for Efficient Removal of Trace Heavy Metal Ions from Water

LI Hua1,2, YANG Ke1, HUANG Junfeng1, CHEN Fengjuan1()   

  1. 1.State Key Laboratory of Applied Organic Chemistry,School of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China
    2.School of Material and Energy,Lanzhou University,Lanzhou 730000,China
  • Received:2021-10-04 Online:2022-03-10 Published:2021-12-28
  • Contact: CHEN Fengjuan E-mail:chenfj@lzu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21876072);the Key Laboratory of Luminescence Analysis and Molecular Sensing(Southwest University), Ministry of Education, China(LAMS20210701);the Science and Technology Project of Gansu Province, China(21JR7RA491)

Abstract:

UiO-66-NH2 Metal-Organic-Frameworks(MOFs) nanoparticles were in situ formed in the 3D low-tortuosity wood lumens by a facile solve-thermal strategy with ZrCl4 and amino terephthalic acid as precursors. The UiO-66-NH2/wood membrane showed excellent removal performance for removing heavy metal ions(Hg2+, Cu2+) in wastewater. The results showed that the removal efficiency for tested heavy metal ions(Hg2+, Cu2+) is more than 90.0% at the treatment rate of 1.0×102 L?m-2?h-1. Wood membrane, as a 3D substrate for anchoring UiO-66-NH2 nanoparticles, contains numerous elongated and open lumens along the growth direction. On the one hand, it can enhance the water of including heavy metal ions fluxes; on the other hand, it can increase the contact probability of heavy metal ion containments with UiO-66-NH2 MOFs as water flowing through the membrane. Therefore, the UiO-66-NH2/wood membrane can efficiently remove trace heavy metal ions from the water. In addition, the UiO-66-NH2/wood membrane also has good reusability, which is expected to be applied in practical applications.

Key words: Wood membrane, UiO-66-NH2 Metal-Organic-Frameworks(MOFs), Water treatment, Trace heavy metal ion

CLC Number: 

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