Cellulose and chitosan based magnetic nanocomposite microspheres and its application. Issue 48 (6th August 2021)

• Record Type: Journal Article
• Authors: Pan, Huiming; Meng, Qi; Wang, Qiyang
• Is Part Of: Journal of applied polymer science. Volume 138:Issue 48(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-08-06
• Subjects: biopolymers and renewable polymers -- catalysts -- magnetism and magnetic properties; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.51512
• Languages: English
• ISSNs: 0021-8995

Abstract

Abstract: In this work, a simple and green method is used to fabricate magnet nanocomposite microspheres (cellulose/chitosan/Fe3 O4 ) based on cellulose/chitosan microsphere via the interaction between metal ions with chitosan. The results of Fourier transform infrared spectra and X‐ray diffraction indicated that the Fe3 O4 nanoparticles were well‐fixed in the network of cellulose/chitosan microsphere as a result of the chelation role between chitosan and metal ions. Moreover, the morphology of Fe3 O4 nanoparticle can be adjusted by changing the chitosan concentration of cellulose/chitosan microsphere. Most important, the catalytic performance of the nanocomposite magnet microsphere was studied, and the magnet nanocomposite microspheres with face‐centered cubic structure and less size of Fe3 O4 nanoparticles have shown excellent catalytic performance. Based on their excellent catalytic properties, these magnet cellulose/chitosan/Fe3 O4 microspheres have prospect applications in the field of biotechnology and environmental, and so on. Abstract : A simple and green method is used to fabricate magnet nanocomposite microsphere (cellulose/chitosan/Fe3 O4 ) based on cellulose/chitosan microsphere via the interaction between metal ions with chitosan. The magnet composite microspheres exhibit intrinsic peroxidase mimetic activity, which are related to the Fe3 O4 nanoparticles fabricated by in‐situ synthesis in the cellulose/chitosan microsphere matrix. Based on the magnet nanocomposite microspheres with excellent catalytic properties, these magnet nanocomposite microspheres can be expected to catalysis applications in the field of environment, biotechnological and medical technology.