Prominent removal of trace lead (II) ions from polluted water by terephthalic acid reformed Al/Zn metal organic nanoflakes

Junhua Li, Lingshu Gao, Junmao Hong, Xiaofeng Shi*, Sifang Kong*, Jingyu Wang, Hassan Algadi, Ben Bin Xu, Zhanhu Guo*

*Corresponding author for this work

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Terephthalic acid reformed Al/Zn metal organic nanoflake was prepared and functionalized with triethylamine (T-AlZn). Without adding terephthalic acid, there was no product of metal organic nanoflake. T-AlZn has a remarkable performance in removing trace lead (II) ions (Pb2+). The adsorption equipoise with the removal rate ≥ 97% was reached within 35 min. The removal rates of T-AlZn for Pb2+ declined by only 16.73% after four regenerations. The adsorption of T-AlZn for Pb2+ follows the Langmuir isotherms model and pseudo-second-order dynamics model. The utmost adsorption competence was calculated as 215.27 mg·g-1. The T-AlZn adsorbent exhibits a bright prospect in the adsorption for Pb2+ and is a considerable candidate in the disposal of industrial sewage.
Original languageEnglish
Pages (from-to)81-88
Number of pages8
Early online date17 Mar 2023
Publication statusPublished - 1 Jan 2024

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