Hydrothermal fabrication of triazine-functionalized covalent organic polymer enfolded alginate biocomposite beads for Cr(VI) removal from water
Hexavalent chromium [Cr(VI)] is highly water soluble and their compounds act as strong oxidizing agent that easily reacts with human organs which leads to the various carcinogenic diseases. Cr(VI) removal is very important to provide safe drinking water. Hence, this research work targets in Cr(VI) removal using sustainable material like triazine assisted micro-porous covalent organic polymer enfolded alginate biocomposite beads (TCOP@Alg) were synthesized by hydrothermal method. To find the physico-chemical properties of TCOP@Alg biocomposite beads, FTIR, PXRD, SEM, XPS, EDAX, BET and mapping analysis were scrutinized. The surface area of TCOP@Alg biocomposite beads was found to be 292 m2/g and shows the excellent sorption SC of 42.89 mg/g. The sorption data of Cr(VI) removal onto TCOP@Alg biocomposite beads is well correlated with various isotherms and kinetic models. The thermodynamic equilibrium values represented that Cr(VI) sorption onto TCOP@Alg biocomposite beads were to follow endothermic and spontaneous. In addition, TCOP@Alg hybrid biocomposite bead can be efficiently regenerated upto three cycles using 0.1 M NaOH. TCOP@Alg biocomposite beads can be employed as potential sorbent for Cr(VI) removal from Cr(VI) contaminated ground water.