Preparation of Cross-linked Chitosan with Template Method and Its Adsorption for Cd (II)

Glutaraldehyde- crosslinked acrylic acid- modified chitosan adsorbent( PACS) was prepared using Cd (Ⅱ) as a template ion. Mass ratio of acrylic acid to chitosan was tested to find the most suitable adsorption effects.The adsorbent was characterized by SEM and FT-IR and its adsorption for Cd2+was evaluated. When the mass ratio of acrylic acid to chitosan was 1. 5 ∶1,the obtained adsorbent for Cd2+had the highest uptake of 132. 1 mg / g at p H 5.The adsorbent can be recycled. Therefore,the PACS is an effective sorbent for the removal or collection of Cd2+from effluents.