Phenanthroline-based microporous organic materials for removal of Cu(II) from aqueous solution and reutilization of spent adsorbent as catalysts

Baodong Tian; Ruike Zhang; Tian Chen; Gongshu Wang; Shengju Liu; Zhangpei Chen; Jianshe Hu

doi:10.2166/wst.2022.218

Water Science and Technology (Aug 2022)

Phenanthroline-based microporous organic materials for removal of Cu(II) from aqueous solution and reutilization of spent adsorbent as catalysts

Baodong Tian,
Ruike Zhang,
Tian Chen,
Gongshu Wang,
Shengju Liu,
Zhangpei Chen,
Jianshe Hu

Affiliations

Baodong Tian: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
Ruike Zhang: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
Tian Chen: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
Gongshu Wang: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
Shengju Liu: Shenyang R & D and Service Center of Modern Agriculture (Shenyang Academy of Agricultural Sciences), Shenyang 110003, P.R. China
Zhangpei Chen: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
Jianshe Hu: Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China

DOI: https://doi.org/10.2166/wst.2022.218
Journal volume & issue: Vol. 86, no. 3
pp. 496 – 510

Abstract

Read online

Microporous organic polymers (MOPs) possessing large specific surface area with high stability are suitable adsorbent to remove contaminants from water, such as organic pollutant and heavy metal contaminants. Herein, a phenanthroline-based microporous organic polymer (Phen-MOP) has been synthesized through the coupling between benzene and 1,10-phenanthroline. The adsorption kinetics and thermodynamics were investigated. This Phen-MOP exhibited good adsorption efficiency for removal of Cu(II) from water with high structural stability and reusability. The maximum removal efficiency could reach to 98.47% at a Cu(II) concentration of 20 mg/L, pH = 7, 25 °C. It was found by investigating the adsorption isotherms that the maximum adsorption capacity Qm was 128.53 mg/g. Interestingly, after the adsorption of Cu(II), the resulting Phen-MOP-Cu can serve as an efficient heterogeneous catalyst for the Ullmann-type reaction. The structure and composition of the Phen-MOP-Cu were characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). The results indicated that this catalyst possessed immense specific surface area, large pore volume and high stability. The catalyst was easily recyclable and did not significantly lose catalytic activity after being reused six times. HIGHLIGHTS A phenanthroline-based microporous organic polymer (Phen-MOP) has been synthesized.; The fabricated Phen-MOP possessed large pore volume and high stability.; The Phen-MOP exhibited good adsorption capacity and high removal rate for Cu(II).; After adsorption, the resulting Phen-MOP-Cu could be used as recyclable catalyst for organic synthesis.;

Published in Water Science and Technology

ISSN: 0273-1223 (Print); 1996-9732 (Online)
Publisher: IWA Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Environmental technology. Sanitary engineering
Website: https://iwaponline.com/wst

About the journal

Abstract

Keywords