This paper first of chitosan crosslinking, again, in order to enhance its derivatives coordination ability. Through reverse suspension method for chitosan microspheres, in formaldehyde, under the protection of the use epichlorohydrin crosslinking reoccupy contains amino acid pickling get a high percentage of chitosan microspheres, and eventually with adjacent amino phenol crosslinking after the chitosan microspheres to decorate, make full use of phenol coordination effect of chitosan, get a new resin. Through the infrared spectroscopy (ftir) were the structure and investigates, synthetic resin Cu2 +, new to Pb2 Ca2 + +, and adsorption performance. The results show that the modified chitosan microspheres resin in pH = 4, balance adsorption 4 h, for metal ions Cu2 +, Pb2 Ca2 + +, and static saturated adsorption were 0.16 mmol/g, 0.05 mmol/g, 0.04 mmol/g.
This paper first of chitosan crosslinked, then derivatized to enhance its capability of coordination. Through inverse suspension preparation of chitosan microspheres, in formaldehyde under the protection, use epichlorohydrin crosslinked by amino acid have higher amounts of chitosan microspheres, finally using amino phenol on cross-linked chitosan microspheres were modified, making full use of phenol on chitosan coordination function, a new resin. Its structure is characterized by infrared spectroscopy, were also investigated, new synthetic resin on the Cu2+, Pb2+, Ca2+ adsorption properties. The results showed that, after modification of chitosan microspheres resin in pH=4, the equilibrium adsorption of metal ions on4h, Cu2+, Pb2+, Ca2+ static saturated adsorption capacity were 0.16mmol/g,0.05 mmol/g,0.04 mmol/g.
太专业了。。。。