High adsorption performance for trace lead (II) cation from sewage by Fe/Cu metal organic nanosheets modified with terephthalic acid

Xiaofeng Shi*, Lingshu Gao, Eman Alzahrani, Junmao Hong, Abdullah K. Alanazi, Hala M. Abo-Dief, Junhua Li, Ben Bin Xu*, Hassan Algadi, Zeinhom M. El-Bahy, Zhanhu Guo*

*Corresponding author for this work

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A two-dimensional nanoflake (Fe/Cu-TPA) was prepared through a simple ultrasonic-centrifuge method. Fe/Cu-TPA has prominent performance on the removal of Pb2+ with low consistences. More than 99% lead (II) (Pb2+) was removed. The adsorption equipoise was established within 60 min for 50 mg L−1 Pb2+. Fe/Cu-TPA shows excellent regenerability with 19.04% decline of Pb2+ adsorption competence in 5 cycles. There are two models for Fe/Cu-TPA adsorption of Pb2+, pseudo-second-order dynamic model and Langmuir isotherm model, with a utmost adsorption competence of 213.56 mg g−1. This work offers a new candidate material for the industrial-grade Pb2+ adsorbents with promising application prospect.
Original languageEnglish
Article number138637
Number of pages9
Early online date6 Apr 2023
Publication statusPublished - 1 Jul 2023

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