Poly(benzoxazine-co-sulfur): An efficient sorbent for mercury removal from aqueous solution

Sema Akay; Berkant Kayan; Dimitrios Kalderis; Mustafa Arslan; Yusuf Yagci; Baris Kiskan

doi:10.1002/app.45306

Poly(benzoxazine-co-sulfur): An efficient sorbent for mercury removal from aqueous solution

Sema Akay, Berkant Kayan^*, Dimitrios Kalderis, Mustafa Arslan, Yusuf Yagci, Baris Kiskan

^*Corresponding author for this work

Department of Chemistry

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

50 Citations (Scopus)

Abstract

A novel sulfur-rich adsorbent, poly(BA-ala-co-sulfur), was synthesized by reacting allyl functional benzoxazine (BA-ala) and elemental sulfur. Simultaneous inverse vulcanization and ring-opening reactions of benzoxazine generated copolymers in several feed ratios. The adsorption behavior of these copolymers was investigated in aqueous solutions containing Hg²⁺. A three level Box–Behnken design with four factors was applied in order to examine the interactive effect of Hg²⁺ concentration (ppm), S % in adsorbent, temperature, and pH. The optimum adsorption conditions were determined as: 10.33 ppm Hg²⁺, 68% S content, 329 K, and pH 6.3. Common isotherm and kinetic models were applied to the experimental data, where the Langmuir isotherm provided the better fit (q_max = 79.36 mg g⁻¹) and the pseudo-second order fit indicated chemisorption as the process-controlling step.

Original language	English
Article number	45306
Journal	Journal of Applied Polymer Science
Volume	134
Issue number	38
DOIs	https://doi.org/10.1002/app.45306
Publication status	Published - 10 Oct 2017

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Publisher Copyright:
© 2017 Wiley Periodicals, Inc.

Keywords

benzoxazine
box-behnken design
mercury removal
polybenzoxazine
response surface methodology

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title = "Poly(benzoxazine-co-sulfur): An efficient sorbent for mercury removal from aqueous solution",

abstract = "A novel sulfur-rich adsorbent, poly(BA-ala-co-sulfur), was synthesized by reacting allyl functional benzoxazine (BA-ala) and elemental sulfur. Simultaneous inverse vulcanization and ring-opening reactions of benzoxazine generated copolymers in several feed ratios. The adsorption behavior of these copolymers was investigated in aqueous solutions containing Hg2+. A three level Box–Behnken design with four factors was applied in order to examine the interactive effect of Hg2+ concentration (ppm), S % in adsorbent, temperature, and pH. The optimum adsorption conditions were determined as: 10.33 ppm Hg2+, 68% S content, 329 K, and pH 6.3. Common isotherm and kinetic models were applied to the experimental data, where the Langmuir isotherm provided the better fit (qmax = 79.36 mg g−1) and the pseudo-second order fit indicated chemisorption as the process-controlling step.",

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T2 - An efficient sorbent for mercury removal from aqueous solution

AU - Akay, Sema

AU - Kayan, Berkant

AU - Kalderis, Dimitrios

AU - Arslan, Mustafa

AU - Yagci, Yusuf

AU - Kiskan, Baris

PY - 2017/10/10

Y1 - 2017/10/10

N2 - A novel sulfur-rich adsorbent, poly(BA-ala-co-sulfur), was synthesized by reacting allyl functional benzoxazine (BA-ala) and elemental sulfur. Simultaneous inverse vulcanization and ring-opening reactions of benzoxazine generated copolymers in several feed ratios. The adsorption behavior of these copolymers was investigated in aqueous solutions containing Hg2+. A three level Box–Behnken design with four factors was applied in order to examine the interactive effect of Hg2+ concentration (ppm), S % in adsorbent, temperature, and pH. The optimum adsorption conditions were determined as: 10.33 ppm Hg2+, 68% S content, 329 K, and pH 6.3. Common isotherm and kinetic models were applied to the experimental data, where the Langmuir isotherm provided the better fit (qmax = 79.36 mg g−1) and the pseudo-second order fit indicated chemisorption as the process-controlling step.

AB - A novel sulfur-rich adsorbent, poly(BA-ala-co-sulfur), was synthesized by reacting allyl functional benzoxazine (BA-ala) and elemental sulfur. Simultaneous inverse vulcanization and ring-opening reactions of benzoxazine generated copolymers in several feed ratios. The adsorption behavior of these copolymers was investigated in aqueous solutions containing Hg2+. A three level Box–Behnken design with four factors was applied in order to examine the interactive effect of Hg2+ concentration (ppm), S % in adsorbent, temperature, and pH. The optimum adsorption conditions were determined as: 10.33 ppm Hg2+, 68% S content, 329 K, and pH 6.3. Common isotherm and kinetic models were applied to the experimental data, where the Langmuir isotherm provided the better fit (qmax = 79.36 mg g−1) and the pseudo-second order fit indicated chemisorption as the process-controlling step.

KW - benzoxazine

KW - box-behnken design

KW - mercury removal

KW - polybenzoxazine

KW - response surface methodology

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Poly(benzoxazine-co-sulfur): An efficient sorbent for mercury removal from aqueous solution

Abstract

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Keywords

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