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

Li, J., Gao, L., Hong, J., Shi, X., Kong, S., Wang, J., . . . Guo, Z. (2024). Prominent removal of trace lead (II) ions from polluted water by terephthalic acid reformed Al/Zn metal organic nanoflakes. Particuology, 84, 81-88. https://doi.org/10.1016/j.partic.2023.02.020

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

Junhua Li ^a, Lingshu Gao ^a, Junmao Hong ^a, Xiaofeng Shi ^a *, Sifang Kong ^b *, Jingyu Wang ^a, Hassan Algadi ^c, Benbin Xu ^d, Zhanhu Guo ^d *

a School of Chemistry and Chemical Engineering, North University of China, Taiyuan, 030051, China
b School of Traffic & Environment, Shenzhen Institute of Information Technology, Shenzhen, 518172, China
c Department of Electrical Engineering, Faculty of Engineering, Najran University, Najran, 11001, Saudi Arabia
d Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK

10.1016/j.partic.2023.02.020

Volume 84, January 2024, Pages 81-88

Received 3 November 2022, Revised 31 January 2023, Accepted 18 February 2023, Available online 17 March 2023, Version of Record 31 March 2023.

E-mail: xiaofeng_shi1987@163.com; mengsiksf@163.com; nanomaterials2000@gmail.com

Highlights

• Terephthalic acid reformed Al/Zn metal organic nanoflake (T-AlZn) was prepared.

• T-AlZn achieved prominent removal behavior for trace Pb²⁺.

• Regenerated T-AlZn also remained relatively excellent adsorption behavior.

• T-AlZn exhibits bright prospect in the adsorption for Pb²⁺.

Abstract

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.

Graphical abstract

Keywords

Metal organic complex; Nanoflake; Trace level; Pb²⁺; Adsorption

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