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Poly(benzoxazine‐ co ‐sulfur): An efficient sorbent for mercury removal from aqueous solution
Author(s) -
Akay Sema,
Kayan Berkant,
Kalderis Dimitrios,
Arslan Mustafa,
Yagci Yusuf,
Kiskan Baris
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.45306
Subject(s) - sorbent , adsorption , aqueous solution , sulfur , copolymer , chemisorption , langmuir adsorption model , chemistry , box–behnken design , vulcanization , mercury (programming language) , langmuir , polymer chemistry , nuclear chemistry , organic chemistry , chromatography , polymer , response surface methodology , natural rubber , computer science , programming language
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 Hg 2+ . A three level Box–Behnken design with four factors was applied in order to examine the interactive effect of Hg 2+ concentration (ppm), S % in adsorbent, temperature, and pH. The optimum adsorption conditions were determined as: 10.33 ppm Hg 2+ , 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. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45306.