EDTA Modified Hollow Microporous Organic Nanospheres for Enhancing Adsorption of Metal Ions

Shujing Ni; Qi Ge; Haitao Yu; Li Zhang; Wenjin Wu; Chunmei Song; Kun Huang

doi:10.1002/slct.202104558

EDTA Modified Hollow Microporous Organic Nanospheres for Enhancing Adsorption of Metal Ions

Shujing Ni
, Qi Ge
, Haitao Yu
, Li Zhang
, Wenjin Wu
, Chunmei Song^*
, Kun Huang^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

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

3 Scopus citations

Abstract

In this study, ethylenediaminetetraacetic acid (EDTA) modified hollow microporous organic nanospheres (EDTA-HMONs-BA) were prepared by a combination of one-pot hyper-crosslinking mediated self-assembly using polylactide-b-polystyrene (PLA-b-PS) diblock copolymer and benzylamine (BA) monomers as precursors and subsequent post-modification with EDTA. The obtained EDTA-HMONs-BA were characterized by FT-IR, TEM, TGA, solid state ¹³C NMR, N₂ adsorption-desorption test et al. It revealed that the EDTA-HMONs-BA have a high specific surface area (226.86 m² g⁻¹), which exhibited excellent adsorption ability for Cu²⁺ ions (236 mg g⁻¹) with adsorption characteristics of pseudo-second-order model and Langmuir isotherm equation. Moreover, the obtained adsorbent is of high stability after five consecutive cycles. Besides, EDTA-HMONs-BA also showed good adsorption capacities for hard acid metal ions (Cr³⁺), soft acid metal ions (Ag⁺, Cd²⁺), borderline acid metal ions (Cu²⁺, Ni²⁺, Zn²⁺). The above results indicated that the EDTA-HMONs-BA can be considered as potential adsorbents for the removal of heavy-metal ions owing to the easily accessible adsorption sites and sufficiently good stability.

Original language	English
Article number	e202104558
Journal	ChemistrySelect
Volume	7
Issue number	9
DOIs	https://doi.org/10.1002/slct.202104558
State	Published - 7 Mar 2022

Keywords

EDTA modified
Hollow microporous organic nanospheres
Hyper-crosslinking self-assembly strategy
Metal ions adsorption

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10.1002/slct.202104558

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title = "EDTA Modified Hollow Microporous Organic Nanospheres for Enhancing Adsorption of Metal Ions",

abstract = "In this study, ethylenediaminetetraacetic acid (EDTA) modified hollow microporous organic nanospheres (EDTA-HMONs-BA) were prepared by a combination of one-pot hyper-crosslinking mediated self-assembly using polylactide-b-polystyrene (PLA-b-PS) diblock copolymer and benzylamine (BA) monomers as precursors and subsequent post-modification with EDTA. The obtained EDTA-HMONs-BA were characterized by FT-IR, TEM, TGA, solid state 13C NMR, N2 adsorption-desorption test et al. It revealed that the EDTA-HMONs-BA have a high specific surface area (226.86 m2 g−1), which exhibited excellent adsorption ability for Cu2+ ions (236 mg g−1) with adsorption characteristics of pseudo-second-order model and Langmuir isotherm equation. Moreover, the obtained adsorbent is of high stability after five consecutive cycles. Besides, EDTA-HMONs-BA also showed good adsorption capacities for hard acid metal ions (Cr3+), soft acid metal ions (Ag+, Cd2+), borderline acid metal ions (Cu2+, Ni2+, Zn2+). The above results indicated that the EDTA-HMONs-BA can be considered as potential adsorbents for the removal of heavy-metal ions owing to the easily accessible adsorption sites and sufficiently good stability.",

keywords = "EDTA modified, Hollow microporous organic nanospheres, Hyper-crosslinking self-assembly strategy, Metal ions adsorption",

author = "Shujing Ni and Qi Ge and Haitao Yu and Li Zhang and Wenjin Wu and Chunmei Song and Kun Huang",

note = "Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH",

year = "2022",

month = mar,

day = "7",

doi = "10.1002/slct.202104558",

language = "英语",

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T1 - EDTA Modified Hollow Microporous Organic Nanospheres for Enhancing Adsorption of Metal Ions

AU - Ni, Shujing

AU - Ge, Qi

AU - Yu, Haitao

AU - Zhang, Li

AU - Wu, Wenjin

AU - Song, Chunmei

AU - Huang, Kun

PY - 2022/3/7

Y1 - 2022/3/7

N2 - In this study, ethylenediaminetetraacetic acid (EDTA) modified hollow microporous organic nanospheres (EDTA-HMONs-BA) were prepared by a combination of one-pot hyper-crosslinking mediated self-assembly using polylactide-b-polystyrene (PLA-b-PS) diblock copolymer and benzylamine (BA) monomers as precursors and subsequent post-modification with EDTA. The obtained EDTA-HMONs-BA were characterized by FT-IR, TEM, TGA, solid state 13C NMR, N2 adsorption-desorption test et al. It revealed that the EDTA-HMONs-BA have a high specific surface area (226.86 m2 g−1), which exhibited excellent adsorption ability for Cu2+ ions (236 mg g−1) with adsorption characteristics of pseudo-second-order model and Langmuir isotherm equation. Moreover, the obtained adsorbent is of high stability after five consecutive cycles. Besides, EDTA-HMONs-BA also showed good adsorption capacities for hard acid metal ions (Cr3+), soft acid metal ions (Ag+, Cd2+), borderline acid metal ions (Cu2+, Ni2+, Zn2+). The above results indicated that the EDTA-HMONs-BA can be considered as potential adsorbents for the removal of heavy-metal ions owing to the easily accessible adsorption sites and sufficiently good stability.

AB - In this study, ethylenediaminetetraacetic acid (EDTA) modified hollow microporous organic nanospheres (EDTA-HMONs-BA) were prepared by a combination of one-pot hyper-crosslinking mediated self-assembly using polylactide-b-polystyrene (PLA-b-PS) diblock copolymer and benzylamine (BA) monomers as precursors and subsequent post-modification with EDTA. The obtained EDTA-HMONs-BA were characterized by FT-IR, TEM, TGA, solid state 13C NMR, N2 adsorption-desorption test et al. It revealed that the EDTA-HMONs-BA have a high specific surface area (226.86 m2 g−1), which exhibited excellent adsorption ability for Cu2+ ions (236 mg g−1) with adsorption characteristics of pseudo-second-order model and Langmuir isotherm equation. Moreover, the obtained adsorbent is of high stability after five consecutive cycles. Besides, EDTA-HMONs-BA also showed good adsorption capacities for hard acid metal ions (Cr3+), soft acid metal ions (Ag+, Cd2+), borderline acid metal ions (Cu2+, Ni2+, Zn2+). The above results indicated that the EDTA-HMONs-BA can be considered as potential adsorbents for the removal of heavy-metal ions owing to the easily accessible adsorption sites and sufficiently good stability.

KW - EDTA modified

KW - Hollow microporous organic nanospheres

KW - Hyper-crosslinking self-assembly strategy

KW - Metal ions adsorption

UR - https://www.scopus.com/pages/publications/85126258897

U2 - 10.1002/slct.202104558

DO - 10.1002/slct.202104558

M3 - 文章

AN - SCOPUS:85126258897

SN - 2365-6549

VL - 7

JO - ChemistrySelect

JF - ChemistrySelect

IS - 9

M1 - e202104558

ER -

EDTA Modified Hollow Microporous Organic Nanospheres for Enhancing Adsorption of Metal Ions

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