Amine Resin by Chromium (III)-Fibrous Protein for Enhanced Removal of Two Reactive Anionic Dyes

作者：Deng, Hui^*; Xu, Jiacui; Wang, Xiaoning; Zhang, Feng Cai; Wang, Xiaoqing; Du, Shengnan

来源：Environmental Progress & Sustainable Energy, 2019, 38(s1): S196-S204.

DOI：10.1002/ep.12970

• amine resin
• chromium(III)-fibrous protein
• enhanced removal
• reactive brilliant red X-3B
• reactive brilliant red K-2BP

Amine resin (ACrFP) based on chromium (III)-fibrous protein (CrFP) was synthesized by solvothermal reaction using tetraethylenepentamine, and its utilization in removing two kinds of anionic dyes (reactive brilliant red X-3B and K-2BP) was investigated. This adsorbent with protonated amine groups was characterized by SEM-EDS, zeta potential, FTIR, Raman, and XPS. EDS analysis illustrated that the nitrogen content of ACrFP increased 6.40% compared with CrFP, suggesting grafting of amine groups into the framework of CrFP. Raman analysis of anionic dyes in solution and the ACrFP resin which has adsorbed dyes suggested that X-3B and K-2BP in solution have been loaded on solid, and XPS measurement of ACrFP, X-3B-ACrFP, and K-2BP-ACrFPfurther affirmed the results of Raman. Both sorption isotherms of X-3B and K-2BP were favored in lower temperature. About 0.1 mol/L of HCl could desorb reactive red dyes from ACrFP and the regenerated adsorbent could reuse several cycles.

• 出版日期2019-3
• 单位辽宁石油化工大学