Adsorption of Anionic Dyes Using a Poly(styrene-block-4-vinylpyridine) Block Copolymer Organogel

Sanjeevi Prasath Sridhar; Jacob John; Peter Holmqvist; Ulf Olsson; Saravanan Chandran; Brijitta Joseph

doi:10.1021/acs.langmuir.1c00288

Adsorption of Anionic Dyes Using a Poly(styrene-block-4-vinylpyridine) Block Copolymer Organogel

Sanjeevi Prasath Sridhar, Jacob John, Peter Holmqvist, Ulf Olsson, Saravanan Chandran, Brijitta Joseph

Physical Chemistry

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

Abstract

An organogel was prepared by chemically cross-linking a poly(styrene-block-4-vinylpyridine) diblock copolymer using dibromododecane in dimethylformamide. Analysis of the prominent structure peak in small-angle X-ray scattering along with the results of light scattering and rheological profile suggests the bridging of the spherical micelles to one another to form an interconnected network after gelation. The use of this organogel as a selective adsorbent for removing anionic dyes from individual aqueous dye solutions and in a mixture of cationic and anionic dye solutions has shown more than 90% removal of the anionic dyes within 2 h. The regeneration and reusability studies showed that even after 20 cycles, the adsorption property of the organogel holds extremely well still beyond 90%. These results are indicative of the potential use of poly(styrene-block-4-vinylpyridine) organogel for the anionic ions removal in wastewater treatment.

Original language	English
Pages (from-to)	3996-4006
Number of pages	11
Journal	Langmuir
Volume	37
Issue number	13
DOIs	https://doi.org/10.1021/acs.langmuir.1c00288
Publication status	Published - 2021

Subject classification (UKÄ)

Polymer Chemistry

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10.1021/acs.langmuir.1c00288

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title = "Adsorption of Anionic Dyes Using a Poly(styrene-block-4-vinylpyridine) Block Copolymer Organogel",

abstract = "An organogel was prepared by chemically cross-linking a poly(styrene-block-4-vinylpyridine) diblock copolymer using dibromododecane in dimethylformamide. Analysis of the prominent structure peak in small-angle X-ray scattering along with the results of light scattering and rheological profile suggests the bridging of the spherical micelles to one another to form an interconnected network after gelation. The use of this organogel as a selective adsorbent for removing anionic dyes from individual aqueous dye solutions and in a mixture of cationic and anionic dye solutions has shown more than 90% removal of the anionic dyes within 2 h. The regeneration and reusability studies showed that even after 20 cycles, the adsorption property of the organogel holds extremely well still beyond 90%. These results are indicative of the potential use of poly(styrene-block-4-vinylpyridine) organogel for the anionic ions removal in wastewater treatment.",

author = "Sridhar, {Sanjeevi Prasath} and Jacob John and Peter Holmqvist and Ulf Olsson and Saravanan Chandran and Brijitta Joseph",

year = "2021",

doi = "10.1021/acs.langmuir.1c00288",

language = "English",

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T1 - Adsorption of Anionic Dyes Using a Poly(styrene-block-4-vinylpyridine) Block Copolymer Organogel

AU - Sridhar, Sanjeevi Prasath

AU - John, Jacob

AU - Holmqvist, Peter

AU - Olsson, Ulf

AU - Chandran, Saravanan

AU - Joseph, Brijitta

PY - 2021

Y1 - 2021

N2 - An organogel was prepared by chemically cross-linking a poly(styrene-block-4-vinylpyridine) diblock copolymer using dibromododecane in dimethylformamide. Analysis of the prominent structure peak in small-angle X-ray scattering along with the results of light scattering and rheological profile suggests the bridging of the spherical micelles to one another to form an interconnected network after gelation. The use of this organogel as a selective adsorbent for removing anionic dyes from individual aqueous dye solutions and in a mixture of cationic and anionic dye solutions has shown more than 90% removal of the anionic dyes within 2 h. The regeneration and reusability studies showed that even after 20 cycles, the adsorption property of the organogel holds extremely well still beyond 90%. These results are indicative of the potential use of poly(styrene-block-4-vinylpyridine) organogel for the anionic ions removal in wastewater treatment.

AB - An organogel was prepared by chemically cross-linking a poly(styrene-block-4-vinylpyridine) diblock copolymer using dibromododecane in dimethylformamide. Analysis of the prominent structure peak in small-angle X-ray scattering along with the results of light scattering and rheological profile suggests the bridging of the spherical micelles to one another to form an interconnected network after gelation. The use of this organogel as a selective adsorbent for removing anionic dyes from individual aqueous dye solutions and in a mixture of cationic and anionic dye solutions has shown more than 90% removal of the anionic dyes within 2 h. The regeneration and reusability studies showed that even after 20 cycles, the adsorption property of the organogel holds extremely well still beyond 90%. These results are indicative of the potential use of poly(styrene-block-4-vinylpyridine) organogel for the anionic ions removal in wastewater treatment.

U2 - 10.1021/acs.langmuir.1c00288

DO - 10.1021/acs.langmuir.1c00288

M3 - Article

C2 - 33764788

AN - SCOPUS:85103994381

SN - 0743-7463

VL - 37

SP - 3996

EP - 4006

JO - Langmuir

JF - Langmuir

IS - 13

ER -

Adsorption of Anionic Dyes Using a Poly(styrene-block-4-vinylpyridine) Block Copolymer Organogel

Abstract

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