Study of the interactions between the polyelectrolyte complex trimethylchitosan/carboxymethylcellulose and Cu+2, humic acid and atrazine in aqueous solution

Química Nova

Campana-Filho, Sergio P.¹  Universidade de São Paulo, São Carlos, Brasil¹  Britto, Douglas de¹  Embrapa Instrumentação Agropecuária, São Carlos, Brasil¹ 

关键词: N;    N;    N-trimethylchitosan;    carboxymethylcellulose;    polyelectrolyte complex.;   

DOI  :  10.1590/S0100-40422009000600019

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The polyelectrolyte complex (PEC) resulting from the reaction of sodium carboxymethylcellulose (CMC) and N,N,N-trimethylchitosan hydrochloride (TMQ) was prepared and then characterized by infrared spectroscopy and energy dispersive X rays analysis. The interactions involving the PEC and Cu2+ ions, humic acid and atrazine in aqueous medium were studied. From the adsorption isotherms the maximum amount adsorbed (Xmax) was determined as 61 mg Cu2+/g PEC, 171 mg humic acid/g PEC and 5 mg atrazine/g PEC. The results show that the CMC/TMQ complex has a high affinity for the studied species, indicating its potential application to remove them from aqueous media.

【 授权许可】

Unknown