Systematic modulation of thiol functionalities in inexpensive porous polymers for effective mercury removal

Sirinapa Wongwilawan; Doyun Kim; Thien Si Nguyen; Wonki Lim; Sheng Li; Cafer Tayyar Yavuz

doi:10.1002/chem.202202340

Systematic modulation of thiol functionalities in inexpensive porous polymers for effective mercury removal

Sirinapa Wongwilawan, Doyun Kim, Thien Si Nguyen, Wonki Lim, Sheng Li, Cafer Tayyar Yavuz

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

Abstract

Mercury (Hg) contamination in aquatic systems still poses serious health risks through accumulation despite the strict regulations on drinking water and industrial discharge. One effective strategy is adsorptive removal, where a suitably functionalized porous material is added to water treatment protocols. Thiol (SH) group grafted structures perform commendably without due attention to the cost, scalability, and reusability and how the arrangement of sulfur atoms could affect the Hg (II) binding strength. We use an inexpensive and scalable porous covalent organic polymer (COP-130) to systematically introduce thiol functional groups with precise chain lengths and sulfur content. The thiol-functionalized COP-130 demonstrates enhanced wettability and excellent Hg (II) uptake up to 936 mg g-1, with fast kinetics and exceptionally high selectivity. These Hg adsorbents are easily regenerated with HCl and used at least six times even after strong acid treatments without loss of capacity, a rare performance in the Hg removal research domain.

Original language	English (US)
Journal	Chemistry – A European Journal
DOIs	https://doi.org/10.1002/chem.202202340
State	Published - Sep 28 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-10-04
Acknowledgements: This work is supported by the King Abdullah University of Science and Technology (KAUST) and the Nano-Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M3A7B4042140 and NRF-2017M3A7B4042273). S.W. thanks PTT Global Chemical Public Company Limited, Thailand,for the GC scholarship.D.K. was supported by the Sosen scholarship from the Community Chest of Korea.

ASJC Scopus subject areas

General Chemistry

UN SDGs

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

Access to Document

10.1002/chem.202202340

https://repository.kaust.edu.sa/bitstream/10754/682051/1/Chemistry%20A%20European%20J%20-%202022%20-%20Wongwilawan%20-%20Systematic%20modulation%20of%20thiol%20functionalities%20in%20inexpensive%20porous%20polymers_removed.pdf

Cite this

@article{551004cac3f748ec947ae48056962601,

title = "Systematic modulation of thiol functionalities in inexpensive porous polymers for effective mercury removal",

abstract = "Mercury (Hg) contamination in aquatic systems still poses serious health risks through accumulation despite the strict regulations on drinking water and industrial discharge. One effective strategy is adsorptive removal, where a suitably functionalized porous material is added to water treatment protocols. Thiol (SH) group grafted structures perform commendably without due attention to the cost, scalability, and reusability and how the arrangement of sulfur atoms could affect the Hg (II) binding strength. We use an inexpensive and scalable porous covalent organic polymer (COP-130) to systematically introduce thiol functional groups with precise chain lengths and sulfur content. The thiol-functionalized COP-130 demonstrates enhanced wettability and excellent Hg (II) uptake up to 936 mg g-1, with fast kinetics and exceptionally high selectivity. These Hg adsorbents are easily regenerated with HCl and used at least six times even after strong acid treatments without loss of capacity, a rare performance in the Hg removal research domain.",

author = "Sirinapa Wongwilawan and Doyun Kim and Nguyen, {Thien Si} and Wonki Lim and Sheng Li and Yavuz, {Cafer Tayyar}",

note = "KAUST Repository Item: Exported on 2022-10-04 Acknowledgements: This work is supported by the King Abdullah University of Science and Technology (KAUST) and the Nano-Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M3A7B4042140 and NRF-2017M3A7B4042273). S.W. thanks PTT Global Chemical Public Company Limited, Thailand,for the GC scholarship.D.K. was supported by the Sosen scholarship from the Community Chest of Korea.",

year = "2022",

month = sep,

day = "28",

doi = "10.1002/chem.202202340",

language = "English (US)",

journal = "Chemistry – A European Journal",

issn = "0947-6539",

publisher = "Wiley",

}

TY - JOUR

T1 - Systematic modulation of thiol functionalities in inexpensive porous polymers for effective mercury removal

AU - Wongwilawan, Sirinapa

AU - Kim, Doyun

AU - Nguyen, Thien Si

AU - Lim, Wonki

AU - Li, Sheng

AU - Yavuz, Cafer Tayyar

N1 - KAUST Repository Item: Exported on 2022-10-04 Acknowledgements: This work is supported by the King Abdullah University of Science and Technology (KAUST) and the Nano-Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M3A7B4042140 and NRF-2017M3A7B4042273). S.W. thanks PTT Global Chemical Public Company Limited, Thailand,for the GC scholarship.D.K. was supported by the Sosen scholarship from the Community Chest of Korea.

PY - 2022/9/28

Y1 - 2022/9/28

N2 - Mercury (Hg) contamination in aquatic systems still poses serious health risks through accumulation despite the strict regulations on drinking water and industrial discharge. One effective strategy is adsorptive removal, where a suitably functionalized porous material is added to water treatment protocols. Thiol (SH) group grafted structures perform commendably without due attention to the cost, scalability, and reusability and how the arrangement of sulfur atoms could affect the Hg (II) binding strength. We use an inexpensive and scalable porous covalent organic polymer (COP-130) to systematically introduce thiol functional groups with precise chain lengths and sulfur content. The thiol-functionalized COP-130 demonstrates enhanced wettability and excellent Hg (II) uptake up to 936 mg g-1, with fast kinetics and exceptionally high selectivity. These Hg adsorbents are easily regenerated with HCl and used at least six times even after strong acid treatments without loss of capacity, a rare performance in the Hg removal research domain.

AB - Mercury (Hg) contamination in aquatic systems still poses serious health risks through accumulation despite the strict regulations on drinking water and industrial discharge. One effective strategy is adsorptive removal, where a suitably functionalized porous material is added to water treatment protocols. Thiol (SH) group grafted structures perform commendably without due attention to the cost, scalability, and reusability and how the arrangement of sulfur atoms could affect the Hg (II) binding strength. We use an inexpensive and scalable porous covalent organic polymer (COP-130) to systematically introduce thiol functional groups with precise chain lengths and sulfur content. The thiol-functionalized COP-130 demonstrates enhanced wettability and excellent Hg (II) uptake up to 936 mg g-1, with fast kinetics and exceptionally high selectivity. These Hg adsorbents are easily regenerated with HCl and used at least six times even after strong acid treatments without loss of capacity, a rare performance in the Hg removal research domain.

UR - http://hdl.handle.net/10754/682051

UR - https://onlinelibrary.wiley.com/doi/10.1002/chem.202202340

U2 - 10.1002/chem.202202340

DO - 10.1002/chem.202202340

M3 - Article

C2 - 36169493

SN - 0947-6539

JO - Chemistry – A European Journal

JF - Chemistry – A European Journal

ER -

Systematic modulation of thiol functionalities in inexpensive porous polymers for effective mercury removal

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this