Poly(benzoxazine-co-sulfur): An efficient sorbent for mercury removal from aqueous solution
Journal of Applied Polymer Science, cilt.134, sa.38, 2017 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 134 Sayı: 38
- Basım Tarihi: 2017
- Doi Numarası: 10.1002/app.45306
- Dergi Adı: Journal of Applied Polymer Science
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Anahtar Kelimeler: benzoxazine, box-behnken design, mercury removal, polybenzoxazine, response surface methodology
- Kırklareli Üniversitesi Adresli: Evet
Özet
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. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45306.