J. Technology and Education, Vol.30, No.1, pp.15-20 (2023)

研究論文

リン酸セルロース不織布の合成と金属イオン選択性

 

浜辺　裕子^＊

熊本高等専門学校　生物化学システム工学科（〒866-8501　熊本県八代市平山新町）

^＊hamabe@kumamoto-nct.ac.jp

 

Synthesis and metal ion adsorption characteristics of phosphorylated cellulose nonwoven fabrics

 

Yuko HAMABE^＊

Department of Biological and Chemical Systems Engineering, National Institute of Technology, Kumamoto College

(Hirayamashinmachi 2627, Yatsushiro 866-8501, Japan)

 

(Received April 3, 2023; Accepted May 29, 2023)

 

Abstract

There has been considerable interest in using biomass materials as adsorbents for wastewater treatment. In this work, cellulose acetate was selected as a base polymer for the electrospinning process, and phosphorylated cellulose nonwoven fabric (PCnf) was prepared as an adsorbent for harmful metal ions. Adsorption tests with Cu(II) indicate that pseudo-second order kinetics model best fitted experimental data, with a maximum adsorption capacity of 0.22 mmol/g. The selectivity of PCnf toward 6 kinds of metal ions was evaluated in nitric acid media by means of distribution ratio measurements; the order of increasing affinity was found to be Cd(II) < Ca(II), Sr(II) < Cu(II) < Zn(II) < Pb(II).

Key words: phosphorylated cellulose / electrospinning / cation exchange fiber