Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal

Chong Zhang; Zifang Peng; Yun Guo; Yanhao Zhang; Wuduo Zhao; Jiewei Yang; Shusheng Zhang; Wenfen Zhang

doi:10.1016/j.seppur.2021.119097

Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal

Chong Zhang, Zifang Peng, Yun Guo, Yanhao Zhang^*, Wuduo Zhao, Jiewei Yang, Shusheng Zhang, Wenfen Zhang^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

24 Citations (Scopus)

Abstract

In this study, a novel porous organic polymer modified by melamine (MA-POP) was prepared via a post-modification procedure for the Hg²⁺ removal from aqueous solutions. The use of melamine as the rigid crosslinker endowed the polymer with high surface area (669 m² g⁻¹), total pore volume (0.668 mL g⁻¹) and nitrogen content. The material exhibited rapid adsorption kinetic for Hg²⁺, and the adsorption equilibrium can be reached within 10 min. The adsorption progress was more satisfyingly described by the pseudo-second-order kinetic model and the Langmuir isotherm model with a maximum adsorption capacity of 351.6 mg g⁻¹. XPS and FT-IR spectra suggested that the main adsorption mechanism was chelation between nitrogen groups and Hg²⁺. Besides, the adsorbent possessed high adsorption selectivity towards Hg²⁺ in the presence of other eight coexisting metal ions and maintained good adsorption capacity even after five cycles. Therefore, the obtained MA-POP is qualified as a reliable adsorbent for Hg²⁺ removal.

Original language	English
Article number	119097
Number of pages	8
Journal	Separation and Purification Technology
Volume	274
DOIs	https://doi.org/10.1016/j.seppur.2021.119097
Publication status	Published - 1 Nov 2021

User-Defined Keywords

Friedel-Crafts reaction
Melamine
Mercury removal
Porous organic polymers
Post-modification

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.seppur.2021.119097

Cite this

@article{1b52bf7fc32d4840b1e7374d7ff85c8f,

title = "Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal",

abstract = "In this study, a novel porous organic polymer modified by melamine (MA-POP) was prepared via a post-modification procedure for the Hg2+ removal from aqueous solutions. The use of melamine as the rigid crosslinker endowed the polymer with high surface area (669 m2 g−1), total pore volume (0.668 mL g−1) and nitrogen content. The material exhibited rapid adsorption kinetic for Hg2+, and the adsorption equilibrium can be reached within 10 min. The adsorption progress was more satisfyingly described by the pseudo-second-order kinetic model and the Langmuir isotherm model with a maximum adsorption capacity of 351.6 mg g−1. XPS and FT-IR spectra suggested that the main adsorption mechanism was chelation between nitrogen groups and Hg2+. Besides, the adsorbent possessed high adsorption selectivity towards Hg2+ in the presence of other eight coexisting metal ions and maintained good adsorption capacity even after five cycles. Therefore, the obtained MA-POP is qualified as a reliable adsorbent for Hg2+ removal.",

keywords = "Friedel-Crafts reaction, Melamine, Mercury removal, Porous organic polymers, Post-modification",

author = "Chong Zhang and Zifang Peng and Yun Guo and Yanhao Zhang and Wuduo Zhao and Jiewei Yang and Shusheng Zhang and Wenfen Zhang",

note = "Funding Information: Financial supports from the National Natural Science Foundation of China (Grant number: 21974124, 22004109, 22076174) are gratefully acknowledged. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V. All rights reserved.",

year = "2021",

month = nov,

day = "1",

doi = "10.1016/j.seppur.2021.119097",

language = "English",

volume = "274",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal

AU - Zhang, Chong

AU - Peng, Zifang

AU - Guo, Yun

AU - Zhang, Yanhao

AU - Zhao, Wuduo

AU - Yang, Jiewei

AU - Zhang, Shusheng

AU - Zhang, Wenfen

N1 - Funding Information: Financial supports from the National Natural Science Foundation of China (Grant number: 21974124, 22004109, 22076174) are gratefully acknowledged. Publisher Copyright: © 2021 Elsevier B.V. All rights reserved.

PY - 2021/11/1

Y1 - 2021/11/1

N2 - In this study, a novel porous organic polymer modified by melamine (MA-POP) was prepared via a post-modification procedure for the Hg2+ removal from aqueous solutions. The use of melamine as the rigid crosslinker endowed the polymer with high surface area (669 m2 g−1), total pore volume (0.668 mL g−1) and nitrogen content. The material exhibited rapid adsorption kinetic for Hg2+, and the adsorption equilibrium can be reached within 10 min. The adsorption progress was more satisfyingly described by the pseudo-second-order kinetic model and the Langmuir isotherm model with a maximum adsorption capacity of 351.6 mg g−1. XPS and FT-IR spectra suggested that the main adsorption mechanism was chelation between nitrogen groups and Hg2+. Besides, the adsorbent possessed high adsorption selectivity towards Hg2+ in the presence of other eight coexisting metal ions and maintained good adsorption capacity even after five cycles. Therefore, the obtained MA-POP is qualified as a reliable adsorbent for Hg2+ removal.

AB - In this study, a novel porous organic polymer modified by melamine (MA-POP) was prepared via a post-modification procedure for the Hg2+ removal from aqueous solutions. The use of melamine as the rigid crosslinker endowed the polymer with high surface area (669 m2 g−1), total pore volume (0.668 mL g−1) and nitrogen content. The material exhibited rapid adsorption kinetic for Hg2+, and the adsorption equilibrium can be reached within 10 min. The adsorption progress was more satisfyingly described by the pseudo-second-order kinetic model and the Langmuir isotherm model with a maximum adsorption capacity of 351.6 mg g−1. XPS and FT-IR spectra suggested that the main adsorption mechanism was chelation between nitrogen groups and Hg2+. Besides, the adsorbent possessed high adsorption selectivity towards Hg2+ in the presence of other eight coexisting metal ions and maintained good adsorption capacity even after five cycles. Therefore, the obtained MA-POP is qualified as a reliable adsorbent for Hg2+ removal.

KW - Friedel-Crafts reaction

KW - Melamine

KW - Mercury removal

KW - Porous organic polymers

KW - Post-modification

UR - http://www.scopus.com/inward/record.url?scp=85107755503&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2021.119097

DO - 10.1016/j.seppur.2021.119097

M3 - Journal article

AN - SCOPUS:85107755503

SN - 1383-5866

VL - 274

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 119097

ER -

Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal

Abstract

User-Defined Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this