J. Mater. Sci. Technol. ›› 2022, Vol. 98: 212-218.DOI: 10.1016/j.jmst.2021.05.021

• Research Article • Previous Articles     Next Articles

Highly efficient removal of trace lead (II) from wastewater by 1,4-dicarboxybenzene modified Fe/Co metal organic nanosheets

Junmao Honga, Le Kanga, Xiaofeng Shia,*(), Renbo Weib,*(), Xianmin Maic,*(), Duo Pand,f, Nithesh Naike, Zhanhu Guof,*()   

  1. aSchool of Environment and Safety Engineering, School of Materials Science and Technology, Institute of Advanced Energy Materials and Systems, North University of China, Taiyuan, China
    bSchool of Chemical Engineering, Northwest University, Xi’an 710069, China
    cSchool of Urban Planning and Architecture, Southwest Minzu University, Chengdu 610041, China
    dKey Laboratory of Materials Processing and Mold (Zhengzhou University), National Engineering Research Center for Advanced Polymer Processing Technology, Ministry of Education, Zhengzhou University, Zhengzhou 450000, China
    eDepartment of Mechanical & Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
    fIntegrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, United States

Abstract:

A novel Fe/Co metal organic complex nanosheet modified by 1,4-dicarboxybenzene (BDC), i.e., FeCo@BDC, was prepared, and highly efficient removal performance for trace lead (II) (Pb2+) was demonstrated in the neutral aqueous solutions. The removal rates were higher than 95% and the adsorption was equilibrated in 15 min. The isotherms and kinetics for the adsorption Pb2+ by the FeCo@BDC adsorbents followed Langmuir model and pseudo-second-order model, respectively. The maximum adsorption capacity was 220.48 mg•g-1. The FeCo@BDC adsorbents also own a prominent regeneration performance. The prominent performance of in the removal of trace Pb2+ makes FeCo@BDC an ideal candidate as commercial adsorbent materials.

Key words: Metal organic complex, Nanosheet, Trace level, Lead(II), Adsorption