Synthesis and adsorption properties of gelatin-conjugated hematite (α-Fe2O3) nanoparticles for lead removal from wastewater

Hee Jung Kim; Jae Myeong Lee; Jin Hyuk Choi; Dong Hoe Kim; Gill Sang Han; Hyun Suk Jung

doi:10.1016/j.jhazmat.2021.125696

Synthesis and adsorption properties of gelatin-conjugated hematite (α-Fe₂O₃) nanoparticles for lead removal from wastewater

Hee Jung Kim, Jae Myeong Lee, Jin Hyuk Choi, Dong Hoe Kim, Gill Sang Han, Hyun Suk Jung

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Gelatin-conjugated hematite nanoparticles (HT NPs) are prepared through the solid-state phase transformation in the presence of phosphate. Their adsorption capacity and kinetics are investigated for Pb removal in wastewater. The gelatin-conjugated HT NPs with a size of 4–6 nm exhibit an excellent Pb removal performance, with a high adsorption capacity of 169.49 mg g⁻¹ and a fast equilibrium adsorption kinetics, attributed to the large number of active sites and highly negative charge on the surface of HT NPs. Moreover, the magnetic property of HT NPs enables to selectively collect NPs in the wastewater by using a permanent magnet, leading to its high reusability.

Original language	English
Article number	125696
Journal	Journal of hazardous materials
Volume	416
DOIs	https://doi.org/10.1016/j.jhazmat.2021.125696
Publication status	Published - 2021 Aug 15
Externally published	Yes

Keywords

Anion inhibitor
Gelatin-conjugate
Hematite nanoparticle
Pb adsorption
Water purification

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

Access to Document

10.1016/j.jhazmat.2021.125696

Cite this

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title = "Synthesis and adsorption properties of gelatin-conjugated hematite (α-Fe2O3) nanoparticles for lead removal from wastewater",

abstract = "Gelatin-conjugated hematite nanoparticles (HT NPs) are prepared through the solid-state phase transformation in the presence of phosphate. Their adsorption capacity and kinetics are investigated for Pb removal in wastewater. The gelatin-conjugated HT NPs with a size of 4–6 nm exhibit an excellent Pb removal performance, with a high adsorption capacity of 169.49 mg g−1 and a fast equilibrium adsorption kinetics, attributed to the large number of active sites and highly negative charge on the surface of HT NPs. Moreover, the magnetic property of HT NPs enables to selectively collect NPs in the wastewater by using a permanent magnet, leading to its high reusability.",

keywords = "Anion inhibitor, Gelatin-conjugate, Hematite nanoparticle, Pb adsorption, Water purification",

author = "Kim, {Hee Jung} and Lee, {Jae Myeong} and Choi, {Jin Hyuk} and Kim, {Dong Hoe} and Han, {Gill Sang} and Jung, {Hyun Suk}",

note = "Funding Information: This work was supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-MA1901-07 . Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = aug,

day = "15",

doi = "10.1016/j.jhazmat.2021.125696",

language = "English",

volume = "416",

journal = "Journal of Hazardous Materials",

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T1 - Synthesis and adsorption properties of gelatin-conjugated hematite (α-Fe2O3) nanoparticles for lead removal from wastewater

AU - Kim, Hee Jung

AU - Lee, Jae Myeong

AU - Choi, Jin Hyuk

AU - Kim, Dong Hoe

AU - Han, Gill Sang

AU - Jung, Hyun Suk

N1 - Funding Information: This work was supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-MA1901-07 . Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/8/15

Y1 - 2021/8/15

N2 - Gelatin-conjugated hematite nanoparticles (HT NPs) are prepared through the solid-state phase transformation in the presence of phosphate. Their adsorption capacity and kinetics are investigated for Pb removal in wastewater. The gelatin-conjugated HT NPs with a size of 4–6 nm exhibit an excellent Pb removal performance, with a high adsorption capacity of 169.49 mg g−1 and a fast equilibrium adsorption kinetics, attributed to the large number of active sites and highly negative charge on the surface of HT NPs. Moreover, the magnetic property of HT NPs enables to selectively collect NPs in the wastewater by using a permanent magnet, leading to its high reusability.

AB - Gelatin-conjugated hematite nanoparticles (HT NPs) are prepared through the solid-state phase transformation in the presence of phosphate. Their adsorption capacity and kinetics are investigated for Pb removal in wastewater. The gelatin-conjugated HT NPs with a size of 4–6 nm exhibit an excellent Pb removal performance, with a high adsorption capacity of 169.49 mg g−1 and a fast equilibrium adsorption kinetics, attributed to the large number of active sites and highly negative charge on the surface of HT NPs. Moreover, the magnetic property of HT NPs enables to selectively collect NPs in the wastewater by using a permanent magnet, leading to its high reusability.

KW - Anion inhibitor

KW - Gelatin-conjugate

KW - Hematite nanoparticle

KW - Pb adsorption

KW - Water purification

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