Removal mechanism of 17β-estradiol by carbonized green synthesis of Fe/Ni nanoparticles

Kaisheng Gong; Yuanqiong Lin; Pan Wu; Xiaoying Jin; Gary Owens; Zuliang Chen

doi:10.1016/j.chemosphere.2021.132777

Removal mechanism of 17β-estradiol by carbonized green synthesis of Fe/Ni nanoparticles

Chemosphere. 2022 Mar;291(Pt 2):132777. doi: 10.1016/j.chemosphere.2021.132777. Epub 2021 Nov 3.

Authors

Kaisheng Gong¹, Yuanqiong Lin¹, Pan Wu², Xiaoying Jin³, Gary Owens², Zuliang Chen⁴

Affiliations

¹ Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou, 350007, Fujian Province, China.
² Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA, 5095, Australia.
³ Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou, 350007, Fujian Province, China. Electronic address: xyjin@fjnu.edu.cn.
⁴ Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou, 350007, Fujian Province, China. Electronic address: zlchen@fjnu.edu.cn.

PMID: 34742756
DOI: 10.1016/j.chemosphere.2021.132777

Abstract

Even a small concentration of estrogen released into the environment can cause great damage to the surrounding ecosystem, with potential teratogenic and carcinogenic hazards to many organisms. In this study, carbonized green synthesized Fe/Ni NPs, with a maximum adsorption capacity of 44.32 mg g^-1 coupled with over 98.3% removal efficiency, were used to remove 17β-estradiol (E2) from water. Adsorption best conformed to pseudo-second-order kinetics (R² = 0.998-0.999) and the Freundlich model (R² = 0.990-0.997). SEM images reveal that the carbonized material had increased specific surface area and pores. Zeta Potential, FTIR and XPS spectra confirmed that carbonized material was negatively charged and contained functional groups with a high affinity for E2. Liquid chromatography during removal of E2 suggested no new substances were generated. Therefore, the synergistic effect of carbonized-Fe/Ni NPs surface functional groups is a key issue, including dehydration bonds, hydrogen bonds, and the accumulation of Π and Π. In practice the application of carbonized-Fe/Ni NPs demonstrated their ability to remove 51.8% and 48.7% of E2 from domestic sewage and livestock wastewater, respectively. This work provides a strong basis for the practical removal of E2 using carbonized-Fe/Ni NPs material.

Keywords: 17β-estradiol; Adsorption; Carbonized material; Carbonized-Fe/Ni NPs; Synergistic mechanism.

MeSH terms

Adsorption
Ecosystem
Estradiol
Kinetics
Nanoparticles*
Water Pollutants, Chemical* / analysis

Substances

Water Pollutants, Chemical
Estradiol